UNI\'ERSITETETI OSLO CONTENTS OKONOMISKE DOKTORAVHAI\DLINGER 1. fntroduc ti on and z. N on-cooperati v e ? Local 4. Wage dri ft R A barg ai ni ng 6. w age and s umnary w age bargai ni ng w age bargai ni ng c entral 2 - 1990 \\AGE BARGAINING: and bargai ni ng theory of i nfl -ati on THEORYAi\D SOME NORWEGIAI\I EVIDENICE tests BY STEINARHOLDEN UTGI:IT AV SOSir\LOKO\ON'IISKINSTITU'IT PO STI J O I { S1095BI , I N D E R N 0317O SLO 3 bargai ni ng of trade and uni on effi c i enc y rnodel s w ages : S ome i mpti c ati ons for A BARGAINTNG THEORY OF INFIATION by H ol den S tei nar p aper Thi s of unemploymentil at of U ni v ers i ty E con orni c s , from H oel , co mments from A ndrew A s bj orn parti ci pa nts at for of K arI Ov e Moene, and in Fehr, R ol f (E E A , and the Department hav e benefi ted Gol ombek , R agnar Oddbj orn B ol ogna at drafts E arl i er E rns t R ods eth pres entati ons Research Applied os l o. I' W age forrnati on proj ec t res earc h H uw D i x on, Os w al d, S outhampton. the SAF Center R ubi nstei n, and _l part is Mi c hael N y moen, R aaum, 1988), and E s s ex , A ri el from Os l o 1. TN T R OD U C TION I nfl ati on, al most aIl w ages ov er of v ary i ng c api tal i s t ti me degrees , ec onomi es . s trongl y is a pers i s tent is Moreov er, domi nated v ari ati on by in feature in in c hanges money pri c e the ABSTRACT are co n sid e r e d wo r ke r s are wage negotiations model where there is a in a co n flict nominal counteract tion. th e wage th e Hence a with in to a ssu m e d th e wh ile in cr e a se , wo r ke r sr str o n g co n flict model fi rm p o sitio n of in i ncrease the is in fl ati on w age Ii ttl e to s ay to vi ew determi naa has are a n a lyze d with in thi s of w age s i tuati on is, that i nfl ati on is there of rel ati v e c ours e, purel y rec ent w hy in of w age model s , al l c ons i s tent phenomen, foc us s houl d the w hi c h A n underl y i ng w i th ari s e w i th a v i ew i nfl ati onr. an ec onomy i nfJ .ati on more w ages . a monetary be that the theori es , enti rel y ex pl anati ons to i .s no reas on or real - of effi c i enc y and c ompeti ti v e v ery hav e v ers i ons like formati on, of T hi s s eems l .J age deterrni nati on S tandard model s determi nati on domi nated of i nfl ati on. bargai ni ng assumpti on p o tiy theori es about theori es on the obtai n in c urrent uni on-firm if pri ces generated, m o d e l w h e r e a t l ag e n tsa r e r a tio n a l.T h e e ffe ctso fe xp ansi onary economic they Y et popul ar bargarnrng cooperati on w i thdraw A s a resul t, b a r g a in in g . th e a mul ti -year l eveI. rati onal w i thi n agents , pri v ate the framew ork' sector. Thi s paper T hi s basi c set in a pri ce of perfect E ac h N as h there i ts is c hal l enge a dy nami c and betw een i mperfec t produc t. egui l i bri um, real to y ear, bargai n i nformati on. dernand, ai ms dev el ops el ements . market state paper w ages thi s w here, and eac h uni on agents for are ec onomy , any enpl oy ment bel i ef. mac ro rnodel w i th c ompeti ti on, A l -1 In in thi s gi v en are fi rm, and fn eac h l ev el c ons tant and is s ets there a uni que of real from are produc t the fi rrn rati onal -, there fol l ow i ng w ages nomi nal fi rrn. so the the is s teady aggregate one y ear to I One explanation is based on the view that inflation is the result of a game betu'een government and the private sector, where the government tries to "fool" the private sector in ordcr to achicvc a highcr activity lcvcl of the cconomy, cf eg Barro and Gordon (1983) and Backus and Driffill (1985). Another explanation focus on inflation as a means of taxation, cf eg P hcl p s and W i nrer (1973). t-F;@Esi 5 I and pric e rate. a is there If si mpl e. is r e su lt th is b e h in d i n t u i tio n The that an d e l a y i n r e a c h i n g an a g r e e m e n tin th e wa g e b a r g a in in g ,t}reuni on the to a cco r d in g wo r k or c o op e r a tio n withdraws not allowed ty the w o r k e r s' pay. th e Thus, a workers will n o m in a l wa g e s h ar e the w hen in d e fin ite ly. r a ise ll staggering the will fi rm on not the l et i ncrease fi rms stock, and p r i c e s , c a u s i n g i n fla tio n ,th e wo r ke r std isa g r e e m e n tp oi nti s is th e by ca u se d as pri ces in cr easi ng fir r n s a conse- with th e of The i m plica tio n s the c o n fli- ct/str u ctu r a list popular ten to ye a r s twe n ty to a p p r o ach a g o .2 w hi ch i nfl ati on, o n e probl em w i th the w as the trcoretr w a s p r o vid e d . To explicit-J-y on m o d e r n Rrrbinstein, 1982 ) , b a r g a in in g and the T n co n tr a st, a ll th e o r y a g e n ts are rate rnodel present (B i nmore et assurned to al , be is based 1996, rati ona] and ' the of bas i c the v ery be c entre of ai r' .r at z ero pol i c i es s unmers , i nfl ati on co n o r r i - arl and are s et is there the no l i terature (L982) H art produc t the w hi c h 1989). c aus ed and mark et if the features as pos s i bl e. are mac ro model . the w age the money Many gov ernments w i th abov e, the thes e and pos s i bl y c os ts there w age of is i nfl ati on a pos i ti v e determi nati on, the be di s as trous . r hav e H ow ev er, di s c us s ed, in tri ed in to the order B y i nc orporati ng bargai ni ng, in pol i c y , H ow ev er, by ri s e rnenti oned the pri v ate the A s s oc i ated reduc e c entraL s ome ex tens i ons a rnonetary the as s i rnpl y w i thi n pol i c y . i nf rati on hi ghl i ght in to eg i nfl ati on. c oul d a more s ati s fac tory i c forl ow by ec onomi c pol i c i es paper a w age pri c es So s ee c aus ed thes e i deas al ternatel y , of how ev er, c an ari s e of consi derati ons I S.:c e,.q.I-Iincs (1969), Qviqstacj(1975) and Scitovskry (1978). A critique is given in Purdy and ( 7 e 7 4 \ . Zis of s et ex i s tenc e c onc erni ng i nfl ati on a s tri c t and are s ame. s houl d Fi s c her is moders , nec es s ari -l y any di fferenc e mac ro governm ents from The nai n c an be rel ated as s unpti ons w hether bank s the w age model of a p p r o a c h , h o w e v e r ,wa sth a tn o r e a llysa tisfa cto r ym ic ro foundation of at consequenc es confl i ct the for on the dec j .s i ons . ex pranati ons (cf has many si mi l ari ti es model p r e se n t as the pri c es l i terature deterrni nati on, I'moneta ry rr abstaj -n q u e n c e o f t h e w o r ke r slstr o n g p o sitio n in th e wa g e d e te rmi nati on. w age c ompeti ti on not r e d u c e d i n r e a l t e r n s,a sth e m o n e ywa g e isfixe d ' In sh o rt inflation the and modeL, pres ent and central - pres ent the i s s ue is c ruc i al the the (1986). w ages w age and pri c e ess enti -aI1y sector, res embl es the (1985), The is after of w ei tzma n are (1986) In i mperfec t rul e' w i II they and p r ice s, se t fir m s th e s pi ral . aLs o eg B ranc hard w hi c h F i naJ -l y , goi ng gi vi ng to w ork of a p e r i od the the as had' the is w i th up end they th a n assumpti on consequent- bargai ni ng the in a lwa ys a vo id to in cr e a se However, workerrs b a r g a in in g h i gh e r a wage accept p o in t d isa g r e e m e n t yet i ts, w orkers' the to r e m u n e r a tio n r e d u ce to is prof in a drop in vo lve s T h is b e l o w) . ied f i rr'r cf B l anc hard i mmedi ateJ -y a n i n f l e x i b l e w a y ( wo r kto r u le ) ( th isa ssu m p tio n wi} } b e justif s pi ral , in pri ce in rul es w orki ng paper The pres ent constant a at i ncrease va r ia b le s n o m i- n a f a Il w hile next, the a phi rJ -i ps s et l as t to effi c i enc y c urv e out part dev erop w age effec t -1 6 p a pe r The main in is section fo l1 o ws. th e 2 presents S ecti on state ste a d y 4 e xte n d s Se ctio n th e summar-izes th e wh ile a s s u m p t i o n s, 3. as o r g a n ise d 1 is equi l i bri um basi c S taqe anal ysed and rnodel , the 1: spendi ng secti on 5 over under T h e eco n o m y a f i xe d in fir;r, each to sold C, and a g ig a n tic the A,/ co n sid e r a tio n number la r g e p r o d u ce s firrn Each of a consi sts n id e n ti cal number of a n d th e of n uni ons, g o ve r n ment, Y ,, w hi ch is bei nq 2: rn the stage one quanti ti es the of government. and the quanti ty in types four fi rms, h o u sehol ds good, d iffe r e n t h o u se h o ld s 3: firn negligible the sets is produc*the p r i ce Each stages, the beginning product simplicity a ssu m e d m a r ke t mation. i-on o n th e ye a r th e is th e sta g e s are output to have di vi ded ta kin g pl ace at th e sa l- e s , ta ke s p la ce clisco u n tin g th ird stage, throughout w i thi n the the perfect are onl y a IeveL. so a ctio n s wh ile any and have competi ti on, a ssu med ye a r , n e g le ct w i II fi .rm pri ce im p e r fe ct a g e n ts' two a sin gl e a g g r e g a te P,. A1 1 a q e n ts and I sm a l- l, th e r e fir st cf total money s toc k on fn fi rm i nfor- i .nto three the i mn.edi ate pri ce setti ng, the year. year " For rel ati v e uni on w age nomi nal gov ernment M. The gov ernment pri c es , E ac h fi rm s ets produc ti on T here is cf ti me betw een s ome reas onabl e gi ven and that fi xed the tradeoff bel ow . l e ngth of ti ons ov er costs in th i s i mmedi ate l y throughout thi s is w ages , the be set bel ow , the for i nv ol v es the there are the gi v en pri c e l dages y ear. thei r di s tri buted equal s wilr tak en tak e is and demand ov er s al _es ), not the thus di s ti ngui s h are fi rms c aptured are peri od l -ev er c os ts s et, is the to rare. to are bei ng hol d The fac t, as negoti a_ any bec ome be as A ri k ery w i th l _ev ers rev ers then fi rs t. i nc orporate as w i l l it as s umpti on a s ty ri _z ed v ery it uni ons , determi ned is but behav i our as s oc i ated and, for and by and ernpl oy ment w ages , ex ogenous , gov ernrnent v ari abres w age as many and enproy ment are y ear. 1ev e1s , to r s ha1l r mak e no attempt The pri c e opti marl y ev enl y bargai n c urrent empl 0y ment s i mpl i c i ty w age c ontrac t but the (produc ti on Thi s there management) ac c ordi ng are is they that moder. after As of in and rnoder dec i s i on adj us tment for the the and demand opti marl y . gov ernment conti nuou s reason of that adj us t s ares s uppl y c omment. seems pri c e and for s truc ture prev ai l equi l i bri um i nv entori es , (i e buy produc ts and mark et and fi rrn r-ev er- to functi on s . year' to fi rm, and gov ernment The in flu e n ce eac h notati onal l y = C,*Ai' each depends househol ds deserves As nomi nal nomi nal r negl ec t r e s p e ctive ly. (1) goods determi nes r e su lts. THE MODEL agents: A and the betw een staqe 2. gov ernment The s uc h as s urned apparent deterrni _ned c ons tant 9 I W e ma ke th e ye a r , A1: fn the e x p r e s sio n . (2) e a ch H( fo llo win g e a ch h o u se h o ld s M n /Pi { C i,i) , gov ernmentrs A 2: Th e the sa me as (i r , ch maxi mi zes uti l i ty accordi ng ( E- l) ' trl E l {E -1)) '(M,,/p,r)t-' , to tl < r, 0< (5) G( subj ect = ) { A ,) , gi v en hous ehol ds r the ([X , goods betw een tradeoff assumptions . by is c onv eni enc e for a max i mi z ati on of tr,t[' tl ' t]l E (u-l )) , to F\1 X ; P ,A i = A . (6) to th e budget w age A11 A 3: subject current X i Pjch i + M t, : gov ernment The hol -ds. (3) the h, C n i is th e q u a n tu r n m o n e y b a r a n ce s P.n is the utility the n g o od s of and c o n su m p t j- o n . f uture p r ice wh e r e 4 h o u se h o ld h o u se h o r d a g g r e g a te f u n ctio n , (r, E is h h, Bn is le ve I. th e r e fle cts purchases the budget th e of t radeoff T h e a g g r e g a te pri ce of i, to is use th e for the to hous e- t a frac ti on tax es , and fi nanc es hol d more money , i ts of hous ehol d' s eac h defi c i ts by i nduc i ng to in substi tuti on betw een l -evel Mh i s the among current and def i ned by po i s (7) IP .\Y A = M - A - ie M-t, househord parameters E and n are e la sti ci ty good of w here Yo is aggregate real brought househol ds hav e the c urrent en d of T he uni on ov er y earrs S now er, M_, i s to money nomi nal s toc k and M = Zn Mn i s y ear, money s toc k . c are L986) , the prev i ous from nomi nal as s umed is and output, onl y defi ned about as w ere w ho thos e (c f i ns i ders the eg empl oy ed p lt/n ) ttr r ) , in which c ol l -ec ts as i nc ome Lj -ndbec k p,r = (.1) di s tri buted are B5 , househol ds where profi ts and i nc ome co n str a in t goods a p p r o p r ia te th ^ n n cr r r ' ) r f o r r p r ice u til ity i ndex f uncti on from duati ty (2) , cf theory, Wei tzman the fi rm y ear l as t focus on s teady from one y ear to qui ts will vol untary and s tate hav e equi l i bri a the nex t. s hel ter fn the qui t not w here empl oy ment thi s c as e i ns i ders I v ol untari l y . j -s the c ons tant ex i s tenc e the from s ha]l ri s k of of l os i ng (1985). T h e u tlr i- ty of future soivc of money co n sr .r m p tio n , a c on p le te is th u s in te r te m p o r a l a ssu m e d r d o n ot to be a proxy assume m a ximi zati on that for the probl en. tLi e va]ue househol -ds thei r j ob, S o, w ages (thi s as s urnpti on A ssumi n g real - l i neari ty , wac l e ]ev el . on the rnargi n, is the not uni on the c ruc i al uti l i ty uni on for w i Ll the c an c are res ul ts , be s et onl y cf equal about bel ow ). to the 11 t0 P\ n e xt I th e year, ye a r, cu r r e n t in d ica tin g subscript e tc) Ye a r , current to F u r th e r m ore, one. to equal se t is a n d th e o m itte d is fir m indicating w hi l e subscri P t fol J.ow i ng the in aggregate save ., current in U , measured uti l i ty and (here by g ive n i= pri-ces, u n io n a n d fu tu r e cu r r e n t Total A4: l evel P ri ce T notati on i -ndi cates B level in ye a r P revi ous yearrs (11) u tility wJ : and fa cto r u n io n w age Th e Po : W,/P .t; i s w age reaL the (I2) by so that profit Y : L. T h e p a i' o ff in m e a su r e d cu r r e n t of l { = arg is w ri tten of as a functi on as w i II to returns th e th e onl y fi rm R( L ) - wL , pay off of i nv ers e to fi rm, the by ( p i /Po ) tPi ( r - ) )r J - w j q l r wL + and fi rm. [R - is deterrni ned outc ome The N as h bargai ni ng as y mmetri c max fi rm eac h WL - + p r - { V r(W ) through of thi s ), a w age bargai ni ng s ol uti on' V r(W r)} ]' be expl ored i w - q + F {u r ( w ) - u r ( w r ) i in i nput' the scal e The current producti -on scal e year l t'" beIow . r to is set a del ay is the bargai ni ng I Pr ice s in will the the fi rmrs of happen the w age the di s c ounted l ev el in the is uni onts from effec t demand s c heduLe, pay offs res pec ti v e B i nmore w age et l ev el reac hed. equi l i bri um) w ork ers l -abour al , l -986), w here duri ng and c is the fi rm. that agreement the (c f the as s ume on the and the bargai ni ng pow er s hal l - not bei ng empl oy ment and q are bargaj -n i ng, ( r o) in Last a new w age (e) and future gi v en the is w r e l- a tionshi p L, is uni on the f') ' co n sta n t J- a b o u r , with technology a has fir m Each pri c es , P (L) L - { l ev el - betw een subj ect A5: = max V (w -r) gi ven is a n d th is c urrent P (L) co bargai n -1 w as wa g e s, real Tota} and "j ( so W : fu tu r e T o ta l fi rm, i ='l tl j c urrent in measured A 6: d isco u n t th e is where demand func ti on. the the of func ti on rev enue ' U ( wr ) :!' l+ tBj -) - L the omi t @ (8 ) is will no s tart y ear. l as t on Thi s future B y ears ' y earrs { V r (W ) profi t c ons tant j -f that i mpl i es agreement nex t Thus remai ns is reac hed unti l (w hi c h in bargai nj -ng V r (W .r) } of the w i th ref l ec ts reac hi ng an R:R( L) :P( L) L, 3 A s i s rrc l l -k norv n,the s ame rc s u l t s c a n b e o b t a i n e d i n a n o n -c o o p e ra t i v c b a rg a i n i n q n t o d e l . For thi s parti c ul armodel , thi s i s d o n e i n H o l d c n (1 9 8 8 b ). 13 L2 agreement lf on c o r r e s p on d in g co m p a r e d to not in te r p r e ta tio n any reachi ng p be gi ven ca n agreement, {U r(W) - and U r(w ,) a party on the ). ac ti on, i ndustri ar partyrs A'/: I f ning, th e r e th e without is wo r ke r s a ctu a lly assume th a t th e w o rke r sr the a d e la y direct with d r a w co o p e rati on, thus b r e a kin g th e rul ,es e m p lo ye r or d u r in g an agreement r e a ch ing is The w orkers fr on in th e the (w ork to are w ork in to bargai ni ng rul e). l egal _l y assumed ruLe, to so the bargai - to the f threat no uni onrs w ork to is while th e payoff cf the fir m dur i ng a c onfl i c t is for the pi c ture cent other the is (14) n :OR- W_ tL or 0 < o < 1, where g is th e fr a ctio n of n o r m al revenue w hi ch obtai ns duri ncr in a c o n f l i c t. the the A s th e a ssu m p tio n b a rg a in in g is l i t e ra tu r e c o m m e n t. F ir st, of cr u cia t (one wo r k to fo r the e xce p tio n a p r o b le m with is rul e w hol e Moene, the in case mcdel 19gB ), assumpti on of but it of a confl i ct very rare deserves other types in in sone of c hoos e poi nt in manual the mai n di s agreement and re al i ts res ul .t bargai ni ng. w ages . equi l i bri um z ero Thus I in rul -e the agreed of ty pes of go and and to s l ow , w ork ers 60-70 uni ons r not that number non-nanual s tri k es c ountri es that to rul e rf the poi nt z ero there w oul d i nfl ati on, thi s totar other For c ent fac t empi ri c al ry . per and the us e s tri _k es w age bargai ni ng.s w ork rul "e as in i nfl -ati on w i th per 30-40 s ome N ordi c l oc aL betw een c ent. in s al ary i ndi c ates the to c as e here. (r987) w ork w hi c h thei r i mportant of thi s di s c us s ed k eep appl y in be in is w ork ers . ban, 55 per hav e z ero c ent ov erti me | be not threat, not a c os t i mpos e need w ork ers s al amon by equi l i bri um state r ' f h c , c a s e *' h cr e th e r .,,o r kcr s' p a v r e clu ce d is cl uri nga ccl ntl i ct(a case I shal l refcr to as qo skr'.r'.cf \'Ioenc, 1988).ftrr examplc hccauseof bonus schcmcs.is analvsedin Appcndix D. In t h t s c a s c th e r c will still b c a u n ir lu estca d y sta te equi l i bri um,w i th a c(rnstantrate ol 'chanqe i n l h e n o n t i n a l va r ia b lcs.If th e p e r ccn ta Ecr e d u c ti on i n the w orkers'pay i s l ess thrrn hal f the r c d u t : t i o nin p r o lit, u ' h ich sce m s to b c a r ca sonabl eassumpti on,the rate of i nfl al i on u'i l l bc positivc. the in al s o probrem to tak en In the s eems it the probJ _en w i l l renai ni ng w i th coul d A s the ev en c rearer T hi rdl y , equi l i br i um 1989). per as s oc i ati ons l oc k -outs (thi s 45 ac ti ons . empl oy ers t out for like they Thus c arry ruLe ac c ount that ac ti on. reported ac ti on, account W.I , Q: B ri tai n is c redi bre thi s to ac ti ons i .ndustri al (13) rul -e, w ork onl y i ndustri ar be and H ol den, for stri kes the ac tual l y not s ec ondry , E vi denc e s tri k es , tak es to will 1988, duri -ng reduce have w hi c h i nteres ts H al rer, productj ,on reduci ng a posi ti on in d isu tility a co n flict w orki ng not r e m u n e r a tio n l. u tility payoff in like or i nfrati on c as e as v r' as i n uni on order no s teady be c hanged s tri k e ec onomy the in not is to c annot i ts obtai n prev ai l the uni on di s agreement a c ourd if s tate s teady s tate c hoos e w ork hi gher nomi nal in a s teady to ei ther. 5 Thcrc arc ho*cvcr ccntral rvagc ncgotiations wherc lhcsc measuresmav bc uscd. This is neqlected in the prcsent analysis. Thc intcrclependencebetween local and central wa[e bar_qai n i nq i s ex pl orc d i n H ol dc n (19ti 8a). 15 L4 be of Io ck- o u ts o fte n workers as a s y m r n e tr y u se by the of menti oned above, are p a r ty can but p o sition a s th e lo ck- o u ts, a cal l al so N ote the in ment pri c e aJ s o and constant. wilt the wilt w i II be the rate (7), c ondi ti on c ons equentl y of p r o ce e d in g , by meant th a t a ssu m p tio n th e be sh a ll I more preci se fi rms are al l be much th a t I notation but firms, in th e a lso p a r a m e te r s th e Y e q u i - l,ib r iu m € and p are is w hat about of si x PA = A s teady A = v ec tors s tate equi l i bri um (A ,.,A r,A z , do set are the (P46rP411P42, \ ), al l same i n the same pri ce (but ! (D3) Pj/PN : kr, \]j tJ W i \ al I model, and wh e r e c r u tp u t steady sta te b a r g a i n i ng nominal a ll p r ice s nominal wa g e s r e la tive are and co n sta n t wa g e s e q u ilib r iu m state a steady and pri ces, fr o m ch a n g e kr s = P i + t/P 1 : agents other d e fin e The gov ern(thi s the so and nomi nal real money aggregate output, will be in l! - thi s ec onomy s uc h c ons i s ts ), (Mo,MrrMz , ), lY = the aeti ons (W 6rW 17W 2r that L^, W i /P e1 = k 4, so ) . (D 5) to w age the i nfl ati on that (P 6rP 1 1P "7 ) mMj l / P A j at one real year to u n io n s a ch ie ve the wa g e s, ke e p in g r e la tive w ages next, rate constant. of w hi l e In the i ncrease E ach fi rm w here 9 rR ,k r, total l-abour (D 1) a Loosel y, rate. as fol l ow s. same a ll the agents as pay offs , tak i ng of the gi v en, thi s eni pl oyment w ages, a constant ca n b e descri bed in equi l i bri um P ..,+ t/P .A r = s , max i mi z e T H E ST EADY ST AT E EOUIL IBRIUM W e n o w p r o ce e d of the = kz' (D2) rf nR 3. : (k r,Lr,l z , gA/Pa.+ To si npl i fy P ), L - and ....) Thi s i denti cal . i denti cal . w ages fi rms al l a ssu m e th a t will yearrs l- a st a ssu m e th a t do not I E, ov er c ons tant. ernpl oy rnent al -s o and w e hav e Formal Iy , D efi ni ti on: / nl implies mark up in l ev el w age c ons tant, i nfl ati on), greater. B e fo r e be c ons tant at rate prev ai l i ng the w ages budget at a be s pendi ng the ri s es ov er pri c es s o real nomi nal through demand, is l -ev el fi rm, eac h ri s es stock rel ati v e Thus , in mark up i mproves will revenue as a c ons tant fi rm. ensures, be it that bargai ni ng in r educti on can because confl i ct, the Ievel i ncurs seems to pri c e the aggrega te that because (there donrt'r). fir m s fir m ' s producti vi ty, unfai r may l ock-outs that is al so fi rm as the and lo ck- o u ts wh ich th e th a t o b v io u s is o n co o p e r ati on fe e lin g s h a ve 'rworkers and there reason An o th e r th a t to occurs, b e c redi bl e, rnay not a as never One th is. fo r e ffe ct fe e l a lm ost l ock-out uses fi rm the that T h is lo ck- o u t. a d u r in g a n a d ,ve r se have not r u le . r e a so n s loss an to s e v er a L threats a wo r k to repJ-y p o ssib ility th e n e g le ct I w age in sets ='!n:F there is w hi l e the k t, kl, enough and (as s umed s uppl y i mpl i es k r, that f i nterpretati on to res tri c t av ai l abl e l -abour of pos i ti v e s are be c ons tants , c ons tant attenti on in (D 2)-(D 6) and to s houl d be LA i s ex ogenous ). s i tuati ons (c f aggregate and (16) obv i ous . w here bel ow ), I7 16 of state, and main (1985), to A. a p p e n d ix so l- ve one year of la st stage. part In taken is and the of rest P (L) takes a v ery Yi : ( Pi/P.r) fi rst '''" w hi c h s etti ng) constant ( 1s ) + pv (w ) wL ), profi t v rel 1-k now n, is does l ev el at determi ned probl em Thi s pay off future bec aus e al ready are As . is pri c e y earts thi s s i nc e (15) . of i nv ers e the not on depends ti me the of the l ui th max l mi z ati on eguati ons tw o fo l- l- o win g is (thi s pay off w ages , current the form, s i mpl e future pri ce th e of fo r m in model - P (L)L t P -r(nLl Y .r)-1/' [L w here affect refati onshi p the max the government and = L Wei tzman from V(w -r) steady shorten to househoLd gi ves in model l argel y government th e the (L7) pro- state steady order d e ri vati on T h is and h o u se h o ld s th e between the d e r iva tion th e r e le g a te behavj-our expl ore th is a n d b e ca u se I sh a ll th e witn sta r t t e xt, I e co n o m y. th is perties I fo llo win g , th e In o rder demand of el -as ti c i ty pri c i ng, mark -up i mpl i es and the is c ondi ti on n , ^/ P = bW , (18) and Y.r : (1 6 ) w here b = I/(I order c ondi ti on m are and p o sitive from deri ved co n stants the A. appendi x a b o ve , fa cin g e a ch fir m , Eq u a tio n (16) d e fines E quati on (15) same the w i th al l E. d e r n an d agqregate real of g o ve r n m e n t real l et (18) by h o u se h o ld s each tu r n In f ir m . variabLes are to th e sta te co n sta n t, so I p r o g r a m m in g price is year It can and empl oyrnent V(w -r) ca n omi t p r o b le m faci ng = vr (W) subscri pt the fi rs t be ens ure for be opti mal a uni que the fi rm after the to max i mum. s et the pri c e to (18) i mmedi ateJ -y w age bargai ni ng, the pri c e l ev el c ons tant remai n the throughout y ear. defi nes the uni gue profi t max i mi z i ng pri c e l -ev el of the pri c es s et by other fi rms , the fol l -ow i ng tri v i al -Iy . as i nterpreted rel ati on- m acroeconomi c p r :ice ste a d y T h e d y n a m ic l e ve l p r e vio u s Ke yn e sia n - typ e a r e c l u c e d - fo r m We now fr o m the brouqht Iemma f ol l ow s over so L, a as demand money stock and the sp e n di ng in el asti ci ty i rrespect i v e functi-on to w i tl it ac c ordi ng As of s uffi c i ent c onc av e is the is and then fu n ctio n demand (r7) uti J-i ty l evel cf r a te a n d ta x functions > 1." L/E ) is that N o te g where - m > 0, g > 1, 9 A/P^ + n I"I/PA, fi rm in determi nati on because i ndi cati rrg w hen real aII it \rear. sets the {' As a sinqlc firm has onlv a negligible impact on thc agqregatepri c e and output l ev el s ,I assumethat the firms rcgarcl the aqgregatevariablesas cxogenous. 19 18 and, 1 Lel[na A s su m e A.1 - A7 . for each fir m . In sta g e th e a ffe ct : Y' /P,' t ( 19 ) constant \d a g e th e -L : d vld ( w- t) . r a te s- 1 , V' in pri ces, w in each gi ven by eguati on a b a r g ai ni ng, p a r tie sr of future (17) w rt Wi cruc j -al payoff. and part is how so w here of the d w/d w 1 + B v I dw l dw .r ' ste a d y state al ,I vari abl -es change at w orker d W/d W1 : to res pec t W .t and Ut = dU /d (w -r) . a and and a re \/(1-B ), future on the w age l ev el form refl ec ts ful l i mpac t on the W e c an us e Tayl or s how qui te (23) Thi s of that the onc e i ntui ti v el y are approx i mati on (23) and w hi l e a a w age per i nc reas e, an i nfi ni te annui ty . will i nc reas e as rei ai n y ears . l ater to obtai n is of w age in (25) by v al ue obtai ned, w age l ev el (21) affec ted pres ent profi t how future ( (24) is a fi rs t order ex ac t) W:sW- 1 , a nd (24) (20) u' (2:.) w i th they In U w i th (18) S tarti nq appl i cati on of y i el ds reorgan i s i ng there fi rrn, we g e t th e o r e m , envelope where 2, d e r iva tio n by f i r rn , the l evel w age deri v ati on fi rm, the for (23) wa g e s current a g ive n Na sh e q u ilib r iu n a u n iq u e exist For as i V ,(tf) - V r(w .r) U i (W ) U r(i \rr) )/L ! V r (w - I{ r) /L : -(w - w t)/(\-P ), 1 ,/Pn r = s. and ( 2 O) fnserting in (19) a n cl r e a r r a ngi ng w e get the per deri vati ve (25) worker = - L / ( I- B) (2L) Y' /L fn sta te , to ta l U( w.r ) = W * steady written (22) : U ' (W - i ,i l ) = (W - W r)/(I-B ). We now hav eT . cu r r e n t - and future uni on uti l i ty can be as BU( w) , 7 Thi s requi res s onte ueak and reas onabl eas s umpti onson the parametersrv hi c h c ns uresthri t (1-c)(1-o)(1-B )R ,L < w . 2L 20 the Lemma 2 A ssu m e a given level A1 - A7 wa g e le ve l is and in steady current state. For yearrs w age pr,i ce w - (26) so (Proof, se e At perfect th e tim e of fo r e ca st s u b s t i t u te out of fo r th e th e R/L wa g e negoti ati -ons, su b se quent fr o m ( 1 8), pri ce usi ng R /L parti es the So setti ng, = P, to w - ( 1- c ) ( 1- o) ( 1- P) for money s toc k k ept is s pendi ng that al s o N ote as ) s i nfl ati on, of rate the c ons tant, ec onomy thi s in gov ernment nomi nal the ec onomy c an there 1, and w age the by be i nfl -ati on. w i thout make we can 4. E CON OMIC P OLIC Y obtai n ec onomi c gov ernment real c hangi ng of consequenc es bw + w_l, of effec ts the to turn W e now (27 ) adj us ts B ). appendi x s ee ' and the (18), by determi ned is gov ernment equi l i bri um s tate no stea dy the s tate. s teady in ff aggregate real - be i nfl ati on (P roof (29). by of nomi nal the and that will- B) a p p e n d ix rate deterni nati on. spendi ng R/L + wr. ( 1- c ) ( 1- o) ( r - P) the T hus , gi v en is s -l i nfl ,ati on of rate by d e te r m in e d u n iq u e ly is year, f i rrn l ast e a ch W- , in economy th e th a t gi v en is w age } ev el real the w here ec onomy , and the W e hav e the P oIi c Y , s pendi ng. foI l ow i ng which yie ld s 2: P roposi ti on The em pl oy ment W/Wr = = , (28) in i ncreas i ng where rate s = 1/ lL ( 2e) - ( 1- c ) ( 1- o) ( 1 - p ) b l W e c an now pr ov e t he of Thus, f oJ .lo w i n g as money s toc k P r o p o s i tio n A ssu m e fulfils demand , _1 : ( Dl) , A1 - A7 . th e r e Then, e xist f or an y p a i r U nder o f vectorsA andH w hi ch a uni g u e s t e a d y state equi l i bri ui n for *4tFF (P roof, rnoneta ry the the abov e in s ee ec onomy w i l l prev ai l i ng pol i c y will- denand, of i nfl ati on ex hi bi t the as s umpti ons , rai s e output w hi l e real - of a } ev el real real are s tri c tl y w ages and aggregate the in demand B ). gov ernment of rate w i th equi l i bri um s tate appendi x nomi nal the as s oc i ated i ndependent are a ri s e s teady aggregate real i nfl ati on s tate. steady > 1. a in demand aggrega te l ev el s and output s pendi ng will s tandard and rai s e K ey nes i an ex pans i onary w i thout real affec ti ng the nomi nal aggregate features . fi s c al ei ther and the 23 22 price le ve l g o v e r n me n t policy, or th e tr ie s th is to wilr real go ve r n m e n t wi-1I no t be of r a te i nfl ati on. in fla tio n cu r b by fol l ow i ng o u tp u t r e d u ce sp e n d in g Furthermore, in a n d th e l i ne real if a ti ght w i th the the economi c reducti on money stock, but in (LA -nL)/LA @: a cost The qui t the bec ome rate l ow er now u nio n is c o n s t a nt, 1 and wiLl h o ld because is as th e lo n g inflation of the it u n io n ' s Ho we ve r , th e is r th e ta ke s l- a st sh a ll- wh e r e e fficie n cy quitting model in function of given sa lo p f ir r ir . 2 egui l i bri um u n io n has e ffect on ) O, the of of i nc ur (c f appendi x ie a hi gher on w age rel ati v e v aLue abs ol ute to be 01 w i l l is of o u tp ut is r l- lu str ate robust thi s by (rg7g) are e a ch fi rm the that to resul _t i ncorporated goi ng the experi ence those in in appendi x fol l ow i ng A 1-A 4, for A 5' -A 7). (D 1), ful fi l the Then, there ec onomy , w here ex i s t the pai r any for of s teady a uni gue A and s tate is \A /age } ev el real v ec tors egui l i - gi v en by the a qui t P = brW , (3f) pay. rate of modi fi cati ons to I't w hi ch bri um account), i nvesti gati ng si nri rar gi -v en uti J.i ty i nto to z, not wa g e effects T h u s, equal the of A 5-A 7 are 3: A s s ume to i nfl ati on margi nal on emproyment proposi ti on of zero w e hav e and P roposi tion robust the w i th a posi ti ve poi nt part fai rl y c, w here br = f/t(r I/E ) - gi v en i nfl ati on is (32) W /W _, = s ( 1-A ' o $/W ^ , tr) ) ) ) 1, and the rate of by one in the I profi t rate o, w here by s' (30) as s umed the is are proposi ti on effects. are as etasti ci tj -es More speci fi carl y, sta te th e assumpti ons, demand w age p r o p osi ti on d j- sa g r e e m e n t e x a m p l e, th e w ages, n o e ffici ency ste a d y as a b o ut restri cti ve a ssu m p tio ns. in d e p e n d e n t m o d e l. se veral of th e se no ( wh e n are part of t,h e r e u se d co n ce r n e d fir st that wages h a ve th e r e n o d i f i c a tio n s of r o n ly and th e (the effec t al terati ons The c orres pondi ng the mak e the is c ons tant that is and smal l er). LLIPS un til here wA rate fi rm The a pos i ti v e o' i s w i l ,I rate unempl oy rnent ec onomy . as s urnpti on c ruc i al unempl oy ment a ffe cte d . the the qui t, per PiD' is in rate w age average c). i nfl -ati on = p w here o = o ( \t/W^ ,u ) ot, 02 < O, on = I/(I - [(1-c ) (1-o)(l -p)b' /(1+ 0ol br)] ) > 1. > O, Furtherm ore, equi l i bri a sr w i th is dec reas i ng as s oc i ated in rates p, of ie for any i nfl ati on tw o s teady s tl and s ' 1, s tate and 25 24 p' ) . ( Pr oof LL1< if o nly modern bargai ni ng theory , and as s umed are agents atl and rati onat. c) ' s ee a p p e n d i x ' srl pt and F2, then unem ploy m ent r at es asso c iat ed on based > sr2 if Themodel has pol i c y i mpl i c ati ons w hi c hdi ffers harpl y from mostothertheori es ofi nfl ati on.w i thi nthepres entmodel th e T h u s, of s:ze a accept i - n c r e ase care the h iq h wa g e will be p o licy e c o n o m ic d e p e n d ing on a posi ti ve w age qui ts. (A al so uni ons of be sti l l how ever will a speci fi cati on exact the no expansi onary and i nfl ati on, h a ve still wiII in w here a model There with out e q u ilib r ia sta te stea,Jy in fu n ctio n ) . u tility un io n o b ta in ed be of costs reducti on to w i l l i ng more net the the to be will because o win g sm a lle r e m p lo ym e n t, about fi rms in cr e a se , co u ld r e su l- t similar T h us on aggregate effect o u t r : u t. 6. S UM M ARY AND CONCL USIONS wh e r e rnodel, ning paper th is In th e with d r a w to h a ve I ce n tr a l a h ig h e r n o m in a l p r i c e sf ca u sin g in fla tio n . with in th e c o n tr a st th is body are fe a tu r e s r'rage. In the Thi s thi s of theory, will al w ays i nduce respect the of the B y threate- fol l ow i ng. w i j -] theory bargai ni ng mul ti -year w orkers the co n f 1 i- ct/str u ctu r a list to a p resented co o p e r a tio n , o b t a - in empl oy ment possi bl e to w ages. \d a g e . r e la tive th e will reduci -n g on the dependant be more q u j-ts m a r ke t, ]a b o u r a tig h t with steady w age be abl e model is to rai se to fi rms i nfl -ati on' perrnanentl y ' a si tuati on in that 3 is Pr oposi ti on b e h in d in tu itio n The state. as monetar y pol i c y c annotbeus edtoc urbi nfl ati onw i thout in rel -ated be negati vety will a n d u n e m p lo ym e n t inflation effect, curve a P hi l l i ps e xhi bi t witl e co n o m y in l i ne H ow ever, deterni nati on *t is s top i nfl ati on enti rel y Furthermore' as l ong it will as uni ons nev er w ant be hi gher 27 26 A p p e n d ix and Ho u se h o ld A. g o vernrnent (5) rn ye a r , e ach rnaxi mi zes h o u se h o ld uti l i ty accordi ng H( max G( subj ec t o < ( 1 :,cn ( E- t)nl E (E -l ))'7'tn/po)t-', Yln /Pe ) : { Cr ,;) , (3) to ti The Mh = output The y i el ds (a13) Ch i : t ota l (a3) and re a l (a4) In Y,r = (1), amount of vr --si vhi - lll a g g r r e g a te , Xi i co nsumed in the economy is Yi = (1) , we th e n C = r 7 B/P1 ., (a6) M - (a7) M + Po C= B w e obtai n (P i ,/P e) -uy ,r/n. c ol l ec ts househol drs c urrent househol ds is (rec al I di stri buted to the a as s o the tax es , that is aI1 total h a ve (a14 ) It of a1l w age i nc orne and profi ts are (7) A - ( 1 - n ) B, (1-t)P A Y A + M-1. B- foll ow s from tP ^Y .r : (a7), M - gov ernment so the to hold more (ars) (a13) agai n fi nanc es money . y i el ds and (16) (a14) that M-,, i ts get W e then C = n(f-t)Y A + ( Pi/p n ) ' u "/n , w hi ch defi c i ts by (us i ng (a5) i nduc i ng and (us i ng (a13) and Y a= gA /P A + mM-r/P A , (a15) ) g> L, B:X5 8 6 m> 0, w here M = Xp M 6 . (al -6) are 6 T h i s pa r t is vcn b r ie l a s it fo llo u ' sWe itzman (1985) th e g = I/ tr-n(1-t) rel ev ant fi s c al I and and m = t/ tt-ry (1-t) monetary mul ti pl i ers . l hous ehol ds (a14) ) Otl t/P e, and (a10) budget hous ehol ds ) where / > o\ (0 L, frac ti on i nc ome and Ci = (6) ) and PiCi/PA. (as) (a8) (a4) (a11), and gov ernment The as , co n su m p tio n a g g r e g a te C : good defi ned PiYi/PA, (us i ng (aB ) (15) E4 Bn ln Po . ( P,/Pt) Xi is Y a= C + A /P ^. From (a2) X , A (E ' t)rl u' (ot)) , ue/n. aggregate ( 1 - n ) Br , and probl ern max i mi z ati on A, G;/P a) w hi ch is (t Ai : (a12) p r o b le m th is to : ) gov ernment the is R eaI co n str a in t Pr ch i + M 5 = 8 6 , so lu tio n (a1) budget th e {Ai) X 1 P ,A ; : (a11) s u b j e ct to to (6) j- o n e x p r e ss (2) e a ch s ol uti on The behavi our8 29 28 A p r r e n dix B. f ir st order (bl) co n d itio n cF ",/ ( F - F o ) + ( L2) of ( r - c) can Sw/ (S -S o) be w ri tten go to as w ag es as L emma 2 where Fw = -L + - ( F - F ,r ) BVt, we ca n (25) , and su b stitu te sin p lify, out to fo r - U(wr)). (13), (2r), (L4), will - V ( w - r ) }, q + ptu(w) S w : 1 + p U' a n d ( S- So ) - W state w L - T r + B {v ( w ) R - In (23), steady (24) and al l yi el ds the (D 4) :0, - c / | ( 1- o) ( 7- B) R/ L- ( w- w _ r ) I + ( r - c ) / ( w - w - r ) (b2) s o lvin g w - (2 6) ( 1- c ) ( 1- o) ( 1- p) R/L + wr. unj -que nes s of in at will as (the are pri c e QE D P ropos i ti on 2 bec aus e and s ane (w hi c h pri c es (D 2) (s o guaranteed are in l emma I of (18), reaL by (D 3), aggregate that fu1fi l l ed). and ex i s tenc e and the we s o real ens ures is (26) in ful fi l (15) (D 1) ), through c ons tant and that (18) as w ages , rate c ons tant rel ati v e s etti ng l emrna 2. the bargai ni ng l -emma l - w e hav e fns erti ng (29) , be l atter uni quenes s the (18). w age the and from to i nc reas e empl oy ment and (26), i nfl ati on pri c es s tate s teady ac c ordi ng w age of c ons tant E xi stence nati on pri c es pri c es and output W we g e t fo r by (D 5) ) . Moreov er, a nd demand are and gi v en rel -ati v e and w ages w ages al l know th at o b ta in z ero. 1 in rate i f, happen tow ards s l ow er c onv erge the that W , as w oul d al l W for profi ts that s et fi r rns in pos s i bi l i ty the out rul e ens ures in re s ul t to i nfi ni ty , P ropos i ti on of P roof = 0, is i nc reas i ng is N ash ex pres s i on The (b3) behi nd i ntui ti on T h e wa g e bargai n Lenma 2, w age determi - f assu m e P roof (b3 ) (1-o) ( 1 - B) b of Lemma 1 and < L, changes th a t implying d e c r e a sin g w. th e T h is d e r i v a t i- ve positive values, d e n o m in a to r e n su r e s of fo r So d e n o m in a to r w ( r e ca l1 in (18) ) and in th e th e a 1 l- th e th a t Na sh lo we r se co n d th a t the in : R/ L term fi rst bw through the of pri ce or (b2) in (29). th e (26) rast gi ves e xp r e ssi on va r u e s order of term the w i th w and condi ti on in (b2) uni que respect negati ve hol -ds. is to for The w al t aggregate H enc e i nc reas ed and w age Lev el s demand, real i nfl -uen c e w ages or pri c es , as w hi c h Y o does aggregate and c ons equentl y setti ng i ncreasj -ng maxi mum, real - pri c e are not i nv ari ate enter s pendi ng in to (18) does not output and is empl oyrnent in 2 gi v e ds the then is hi gher econoni c through (15). QE D it rai s es I 31 30 A p p en d ix C. Pr o o f of Pr o p o sition 3 A 6r : T he w age Lev el e ( A6 ) and ( A7 ) ca n be r e pl aced fir m Ea ch e xp e r ie n ce a qui t rate o, gi ven W :argmax tP (L)L-(w + Oo)L-r+ p o = o ( W/W^ ,1 t") oz I oL, O, 6tz ) average a c o st p a y o ff ( L ' \- n L ) /t A p wa g e r a te O of th e lr ) p e r Po th e in is fir m th e e co n omy. q u it, if unernpl oyment th e r e O' is The is a fi rm rate no confl i ct and wA is i -s assumed posi ti ve to constant, P( L ) L - cu r r e n t p r i c e s, is a n d fu tu r e g ive n i ncur so the A7 | : there If bargai n i ng, l' q + p (U i (w ) - U r(w r)) ]' ' ' , bei ng on the l abour demand s c hedul -e. is the a del ay uni onrs in reac hi ng pay off an agreement in the is is 9 = W -r, ( w + Oo(W/w ^,p))L, p a yo ff to the fi rm, measured in pay off the (14') v ( w- r ) = m ax t p( L) L- ( w+ oo ) " ; - of the fi rro duri ng a c onfl i c t is currenc by 7r: w here (1 1') -V r(w r)} the w hi l e Total- empl oy ment to (13) (10') { V r(W ) o, subj ect where N as h as y mmetri c by [w - (30) by the by (72,) A5r: gi v en is s ol uti on bargai ni ng (A5) , fj .rm eac h in ( B t / p ; t I p r ( L , ) ! - ( w j +o j o j ) i 1 ] ) . is e oP (L)L the - (w r of frac ti on + A o(w /W ' t,p))L normal w hi c h rev enue obtai ns duri ng a confli c t. H ous ehol d + -1 J_L and equati o ns (15) state fi rmrs the (l .7') and v (w .r) gov ernment (16). : max behav i our Turni ng max i mi z ati on ( P (L)L ll) and th e fi rs t order c ondi ti on the to probl em L " This scction is bricf as the arqument is vcrv similar to thc proof of proposition 1. T o scc ultv lhis is.t r clsottable spccilieution. obs er y e that ( 10') c an be r er v r i r tc n l r s I) ( 1 - @ +o) L - WL, so o* can be interpreted as thc avcrage reduction in productiviti, per quit. O < e < L, is - is pri c e as gi v en before s etti ng, in is (w + oo)L + pv (w ) l, by s teady [' 33 32 (31) P: where L, br s o th e (c5) -c /t and so l v i ng b r W, r /L ( r fir st order > 1. ( 1 - O' o ( w /w ^,p))l r /E) - to suffi ci ent is co n d itio n (31) is concave ensure in a uni que r,,,r= (c6) of the sta g e Na sh (cl) 2, th e + cEw/ ( F - F o ) Fw = where ( 12 ') e xp r e ssio n + B{U(w ) - U( wr ) ) . In fi rst t (1-c ) I - (w +oo)L - 7r + w hi ch ens ures then is hi gher (c2 ) dW /dW 1 : and by the of d e r iva tio n e n ve J- o p e th e o r e m , ( I7 ' ) with and respect r e a r r angi ng, W-t and appl i cati on to aII V,/L (c 6) pos i ti v e N as h for so as s ume al l the for 1L, gi v es the ex pres s i on row er s ec ond s i rnpl i c i ty R /L = - ( Qo r /W' \+ t) / s o W = W A and p: fi rms , : brW , (c 6) of uni que w i th v arues order that max i mum, res pec t of w and c ondi ti on the to c an brw A negati v e be rew ri tten ie for W - [(1-c ) (1-e)(1-B )/(Q' orb' + l )] (l g' )). l ev el Thus , as 0: as b' w * w _1, or Thus, (c4) { Vr ( W) - vr ( r ,r i) } /L = -(oo,/w ',q+l ) (W - W )/ (L-p) W /W -t= s ' , w here and by su b stitu tin g out fo r ( 13) , (14') , (c3) , (23) , (c4) and (33) (25) in ( c1 ) , and sir n p lifyin g , w e obtai n s' : I/(L (c 6), al l prev ai ts ( l-p). (32) the hol ds . s ame w age (by W, as w e obtai n (c8) (c3) + w -1. R /L Sr r in so the v al ues , I : L/Ptt (1-p)b./(oo/w ^+ i ,l that of (S -S o)=Wq+ s t at e s t eady (1-e) deri vativ e L + PUr a n d (1-p) / (oor/w ^+ t\1 assume (c7) P (L)L (1-o) condi ti on = 0, (F,-Fo) = F Y' , order as be w ri tten c an ( 1 - c) Sr v/(S -so) - ( Oo r /wA+ l) L - V( W - r ) ) , Sw: BtV(w) the b a r g a i ni ng, wa g e = 0, w w e get for m a x i m um . In ) + (1-c ) /(w -w .) (L-p)/(aor/w ^+ 1)l R /L-(w -w r) i (1-e) t(1-c )(1-o)(r-B )b,/(1+ o' o1b' )l ) > 1. pO' t' 35 34 w here O is frac ti on the of normal rev enue w hi c h obtai ns duri ng a confl i c t. (31) (32) an d br d e fin e s and sr functi ons as of F, and w e see The model that as i n the fi rst order is now gi v en rnai n tex t. by Turni ng c ondi ti on of to the A 7, , . A 1-A 6 , s tage 2, the S tage 3 is ex ac tl y w age bargai ni ng, (12) N as h ex pres s i on the c an be w ri tten d b t/d 1 .t < O, (c9) AS o2 < 0), (because d s' /d p (c10) (because of ( c9 ) and (d1) < 0, w here a n d o t < O, o r z > 0). QE D Sw = 1 + state q/e c an and (d2) In this a p p e n d ix go slow d u r in g th u s ning, during Fw = -L+ (25), th e y in a d e la y o n ly r e ce ive A7 is a co n flict. an r e a chi ng a w here the agreement in case the we in ve stig a te fracti on d. of thei r w orkers If b a r g a i n in g , (13' while th e r e th e the -c / : (S -S o) R - w - out to (I-B )R /L- (1-p) n + B { V (W ) + ptu(w ) (13,,), for s i mpl i fy , q WL - - - V (W -r)), U (W _r)). (14"), (2I), In s teady (23), (24) obtai n i- s a d e la y ( 1- c) / l( r - P) normal u n io n ' s p a yo ff p a yo ff of th e fir m r :OR- a W_ ,L (w -aw _1) -F(w -w -r) I + ( w- cw_, ) - F( w- w-Ir )= o, pay and reachi ng in t(1-e) bargai - sol -v i ng an agTreernent is in for W w e get w - f a confl i ct is O<e<1, (l -e) Q-p) R /L + l (L-p)o+ B l w _1. assu me (d4) d uri ng (1-c ) the w hi ch (1-o) ens ures deri vativ e (14'') - (F-Fo) o, by r e p la ced q = a w- 1 r 0 < o < L , ') th e and : (1-c )S w l (s -S ' ) s ubs ti tute use (d3) A7 | | : pv t, and BU' + Go slo w D. A p p e n dix c Fw / (F-Fo) of (1-B )b that the < L, (d3) N as h gi v es ex pres s i on the w i th uni que res pec t max i mum, to w, as ie the (d2) , 37 36 then so va lu e s, higher fr o r n R/L :b W I n se r tin q o r d er se co n d th e val ues Io we r a ll- fo r p o sitive is for negati ve al l R EF ER EN CE S hol ds. condi ti on pri ce th e W and of (18) , and setti ng rearran- B ackus, W : (d5 ) st tW - l and R .J . B arro, Gordon, a lg e b r a (d7 ) cr > 1 (d6), on we f ind that sr ' > 1 is eguivalent E c onomj -c s to na 1 We know th a t ( d 7) for to b > L, h o ld and if we se t c = I/2, th e if Thus, th a n is less of i n f l a tio n b:2, then Fi scher, is p e r ce n ta g e h a lf th e sr r witl sr r > and 1 is in p e r ce n ta g e be reducti on p o sitive e q u iva le n t for to pay during w orkersl al l in b. profits, If, pol i c y . J ournaf of The N as h 101-L21. and ec onomi c (1986). A. W ol i ns k y , R and J ournal model l i ng. (1986) . The w age-pri c e E c onomi c s S. and IO4, w i .th S ummers , for go slow H al l er, H. 79, (1988). P a per | the rate chi nc example, L. of s pi ral . Ouarterfy J our- 543-566. (f989). A meri c an i .nfl ati on?. P roc eedi ngs r e d u ctio n in monetary condi ti ons suffi ci ent r/2 + o /2 . ct di s c reti on R ul es , 176-188. of live (d 8 ) 17, of A. s ol uti on O.J . B l anchard, ( 1- c ) ( r - e) b. 12, R ubi ns tei n, bargai ni ng By sinple i nfl ati on. 53O-538. (l -983). D. model E c onomi c s K ., B i nmore, (1-c) (r-e) (1-F)br. - tl t ( 1- B) a+ FJ a in Monetary where s l, = 75, R ev i ew and R eputati on , rep utati on (d6) (1985). J. D ri ffi l l , E c onomi c A m erj -c an yie ld s ging, and D. i ns ti tute gov ernments E c onomi c R ev i ew to fearn P apers and 382-387 . D epartment and s tate game. as a s trategi -c W age bargai ni ng 88-O9-O2 | S houl d of E c onomi c s , V i rgi ni a W ork i ng P ol y te- uni v ers i ty . o > g. H art, O. (1-982). fea tures . A model of i mperfec t The Ouarterl v J ournal c ompeti ti on of E c onomi c s , w i th K ey nes i an l -09-138. 39 38 ( l- 969) . W agr einf lat ion A.G. Hin es, L 96 22 A Dis aggr egat ed in St udy . the United Kingdom 1948- S. (1988a). dinavian L o ca l Jo u r n a l of and ce n tr al Eco n o m ics h'age bargai ni ng. 9O , H aav el mo (1988b). S. d u m n o. 6, A b a r g a in in g R ubi nstei n, 93-99. De p a r tm e n t of th e ory of Eco n o mi cs, at ( f9 8 9 ) . S. Department No n - co o p e r a tive of Eco n o m ics, i nfl ati on. of r .vage bargai ni ng. of and A. and K.O. E c o n o r nic Phelps, a€ vr Purdy , in E.S. n,rL,'r sal amon, Osl o. sal op, OsIo. the Pr o ce e d in g s Jo u r n a l 9 8 , 4 7 I- 4 8 3 . and i^ and Win te r , U. K. : s.c. and M. s. (1987). (1979). c. (7974). A r e a p p r a isa l- . a n d la b o u r E conomi c R evi ew S ci tovsky, T. w age w ei -tzman, determi nati on. M.L. shari ng . ( Le73) . Trade E c onomi c s , bas ed on Lec tures U ni v ers i ty of by Os Io. perfec t 50, equi ri bri um in a bargai ni ng mo- 97-LO9. rndus tri al R el -ati ons : Theory and prac ti c e. London. A rnodel E c onomi c of R ev i ew the natural G9, rate of unempl oy menc . LI7-I29. (1978) Mark et P ow er and fnfl ati on. E c onomi c a 45, 22I-223. InfLati on Swedis h J our n a l finance. Z is, th r e a ts N o 3, i nfl as j ons teori en. unempl oyrnent 2 3 5 - 239. Un io n ( e d s . ) , fn fla tio n Press. 76 , A meri can of fra manuscri pt, Wage setti ng, r e la tio n s. (1988). l/uvr lu D.L. (1986). D.J. i n sid e r - o u tsid e r Papers Moene, a n d Sn o we r , s tudenter, D ept. E c onornetri -c a A meri c an Lindbeck, emner Memoran- U ni versi ty Un ive r si ty for (l -982). A. P renti c e/H aII, Holden, N oen Sc an- del . Holden, (1975). A bonnements s eri en Ec o n o m i c J o u r n a l , 6 6 - 8 9 . T. Holden, J .F. Qvi gstad, of uni ons f n Lai dl er, r n a r kets, in the theory E conomi cs 75, 67-82. and D. w age i nf l -ati on and Manchester P urdy, U ni versi ty D. (l 9B 5). A neri c an The s i mpl e E c onomi c mac roec onomi c s R ev i ew 75 | g37-g53. of profi t AR BEID NR. ( k ap. 6 ) W A GE B A R GA IN IN 6 for S ome i mpl i c ati ons A rb e i d e t er l1g_m-ofCl_dg-U, tes ts of 11 , S o s i a I d k o n o mi U n i v e rs i t e t e t trade uni on p u b l i s e rt t i d l i g e re nr . W A GE S : A N D E FFIC i E N C Y sk e3. auqus som t i ns t i tu t t i Oslo 1988 model s n W A GE B A R GA IN IN G A N D E FFIC IE N C Y S ome i rnpl i c ati ons of tes ts for W A GE S : trade uni on model s by Ste i n a r Holden ABSTRACT rnodel A w age barqai ni ng w ork ers depend that w i thi n will be Thi s paper H oe1 , of s uc h w here the outs i de a framew ork av erage w age is effi c i enc y pres ented. c omrnon tes ts of It of the is s how n uni on trade model -s i nv al i d. unem pl ormentr men t on the is part at E c onomi c s , K arl of the res earc h S A F C enter U ni v ers i ty for A ppl i ed of Ov e Moene and R agnar rW age formati on proj ec t Os l o. N y noen the R es earc h at C omments from are apprec i ated. and D epart- Mi c hael 3 S on e of the (19 86), Mac urdy and penc av er carruth, os w ard and Fi ndl ay mos t w eII k now n s tudi es TNTRODUCTION Trade last ye a r s, 10-15 large different w he th e r or if an whil-e or th e t h e ir r e d u n d a n cY c o r n p u lso r y The ke y o th e r to indifferent as the ' fla t one acce p ts the two F IC, by O sw al d se n io r ity e r n p ir ica lly, the adj ustment th e se and in cause is r el ated to no the sLze w i th the care thei r tery modi fi ed to a bargai ni nq how ev er, if the w age somew hat unc rear B el -ow i t is in arLow s tate is a bargai ni ng thi s. Thi s or the obj ec t by n egoti ati ons . that thi s if framew ork , w i rr of i nv ari date the the any bargai ni ng, the by other s tate di fferentLy (1987 demand. rnodeL appropri ac ons i d.erti ons . thi s they c oul d They be the and ac tuarry w age empi ri c ar it fi ndi ngs hav e w hen the w age is gi v en in mi nd. prev ai l rnay be on unj -on c as e remai ns c ons i derati ons c onc l us i ons ev en of and w adhw ani negoti ati ons , effi c i enc y res ul ts ex pl ai ned i nterpreted w age w hat are mos t do not (1986), (1987)1. ernpi ri c al be N i c k err that is s tudi es they be effi c i enc y by thes e w hi l e c oul d a l abour determi ned Turnbul r narrow l y . c ourd ex pl i c i tery and the rnoders ), by for w hether s how n v al ue, framew ork . fi ndi ngs B ean s v ej nar due to preferenc es is determi ned rul es uni on to is often referred to C 1earl y, if l onger ex prai n res ul ts (1986), though fi ndi ngs nage and A s henfel ter about voti ng (FIC ). thei r a'b) i nvol ves the be i nteresti ng, as resul ts. questi ons test uni on maj ori ty Thi s i denti cal order the assurnpti on q u esti on yie ld s not (1984), nay cu r v er fir st or l evel . e m p lo ym e n t vie ws ye a r s w here whether th e bargai ni ng i ntensi ve w ay: fol l ow i ng adj usti ng conti nuousl y - i- ssu e is in d iffe r e n ce o p p o sin g Re ce n t a d r e s se d th e ca ses the t . in ve r se by fir in g rare in 1984) effi c i enc y that ev en s omew hat thei r B row n c ard and unques ti onabl e that w i thi n even demand N i ckel l , (l i k e do not that i nterpreted even trade, empl oyment. of (1986), (1986) argues rec ogni s e expli c i try the and been theo ri es on the l abour e9. studi es w i th from and (cf. (1983) any wj.th o u t As a r g u e d u n e m plo ym e n t. and th e tradi ti onal a re fir m s fo r ce in e xce p t unions as the a n d An drew s th a t la b o u r both m a n a g e rassumpti on Nicke II o b se r va tio n 'the to ' r iq h tby d efe n d e d to r e fe r r e d vie w, w ages covers the paper done may hav e i ssue by deci de gai ns unexpl oi ted le a ve b a r g a in ' ' e fficie n t l a tte r model will it ]e ve I, e m p l o yn e n t capabl y empl oyment, and associ ated fi rms if that a r g ue fi rst uni l atteral l y often vi ew , fo r m e r th e (1981), So lo w and M c D o n a ld of of Ad vo ca te s of The pres ent A yi el di ng most The w ages determi ned is le ve l i ssues. both about b a r g a in in g e r n p lo ym e n t th e firm. is is th e r e key tw o around (1944). proposed, Y et the over D unl op concl usi ons. co n tr a d icto r y ce n te r e d has d i s c u ssio n The o fte n and by been have r n odel s th e o r e tica l outset the a fter tir n e i nterest i ncreasi ng an r e ce ived lo n g of number is h a ve m o d e ls u n io n are the have vari ous al so been hypotheses. 1 A n i nteres ti ng ( 1e88 ) s urv ey and di s c us s i on in N y moen I 5 TESTS ON TRADE UNION MODELS cons i derati ons , ev en if the is i l l us trated w age is determi ned through negoti a- ti ons . whether both b a se d are th e y variables ( 1 ike rate) sig n ifica n t are problem o ne This is ned of is in fe r not ca n th e in p o in t, a general a lso a ckn o wl- e d g e general p o in t. If a h yp o th e sis certain wh e th e r it is j-s false. is Co n ce r n in g F r o m t his manage' however, to reject Svejnar, F IC th e sig n ifica n ce Ca r r u th will r ^ J a g r ec on sj- d e r a tio n s wh e th e r standard in se ts e fficie n cy bargaining Hoel, it f9 8 8 ) . a n em p lo ym e n t et a It L986) th e e q u a tio n the It and fir m sig n ifica n c e or the (thi s of m a y b e a si gn case ment of the not in is determi ned for through opti mal ty . r outs i de v ari abLe, onl y barqai ni ng, hav e generari ty the s i mpl e of w hi l e i -nc ruded the but is the thi s of res ul ts . R ( e ( W/WA)L ) - WL al ternati ve w age w here wA is e (w /w A ) , is an for w age), and w and the is i nc reas i ng 1984 rel ati v e empl oy ment fl nn fi rm, another) L are aLternati v e the av erage func ti on j us ti fi c ati on w e as s ume of rri ght the ac c ordi ng to manage' to R ' ( e ( w /WA)L ) empl oy ment a func ti on fna v/age (3) w age and the s uc h of rerati v e an enrpl oy - (defi ned effi c i enc y as s umptj -on, w /e ( w /r ,A) no l-n w age effec t in the w age of a R r (eL) (eg. maki ng of the > o. Fol l ow i ng enough the the Y erl en, eg. e' (w7w A ) the due in (see E ffi ci ency fj -rm, l ev el - of w hi c h fi rnts manager determi ned effi ci ency the i mportanc e w orkers , menti oned the ( as is to is to observati on eg. equati ons. is profi t one w ay or that 'ri ght framew ork. w age the is not of is a v ery be above, vari abl es profi t no as r r ( W,L , WA) = be the orrri qht of w age ernpl oy ment w age /1 \ sarne resul ts is cour s e w hj -ch studj -es the adj us ts al -te rnati v e hypothesi s bargai ni ng that fi rn the in menti o- not can and w here bel ow Let one wa g e uni l -atteral l y m o d e ls) above the empl oyment the outsi de a b argai ni ng th e u n io n He n ce of in flu e n ce wa g e b e twe e n of the correct. a rel ated FIC the rej ect wage model . with in e ve n the w age and the j.s r e cogni sed a n e ffie n cy (eg. of frarn ew ork , c onc l us i on an hypotheis to In The how ever referred findi ng e fficie ncy it equati on. an auxci l l i ary or in is rej ected, issues general fr o m 1986) , natter ke y general In th a t th e wh ile h yp o th e se s, de r ive m a in so m e stu d ie s r e su lt, s u p p o r t ed . is th e d o m a tte r va r ia b le s outside could The fo llo wj- n g . the There th is . of Thi s unempl oyment al ternati ve and rnost is some outsi de the w age model s. one may rej ect a speci fi c th a t co u r se s t u d ie s or e r npl oyment w hi l e the studi es form on w hether w age or th a t rnenti oned reduced based ' a lte r n a tive r te sts su ch with sis, th e a re te sts above or str u ctu ral on th e h o we ve r , c ase s the b e twe e n d iffe r e n ce s r n a in The L ( W,WA) of the form the fj -rm c hoos es f 6 where This the d e r i ve s opposite fall sig n s fr o m more w i ll and If le a d th e o th e r to be is w orki ng producti vi ty the the rj 'se i mpl i ed th e effects in in same l evel uni t Mos t will of l abour bargai ni nq through N ash a n asymmetri c betw een the bargai ni ng solution (4) = arg w max ro]"tu(w ) - [n ( w,L ,wA) - uo]l -c = L where the a c c o r d a n ce L ( w,wA) , u n io n with p o in ts threath (4) wh e r e will is F IC h a ve an the h yp o th e sis. i- s th e c l evel , of the the respecti ve fi nn. form frui tful approac h (5) pres ent may s av e the Frc and from (3) wi}l h a ve an bargaining (5) ir n p a ct namel y o utsid e a b o ve we se e e ve n th is va r ia b le s th a t th e wh e n r e su lt a ]so . general in w age and rri ght c an to easi l y the al ternati ve empl oyment manage' be Level and FIC general i sed w age in a hol d. to the bei ng approx i matel y there is the need di rec t will the uni on more to ev i denc e. be more of c ons i d.erati ons robus t out the to be c ompurs ory c onc erni ng referred be than c ons i s tent red.undanc i es i s s ues . the to i ns i der/outs i der new as s i gnrnents . c ontrac ts c as e c ons i d.erati ons al s o on in a v ery parti c ul ar w oul d in s eemi ngl y argument bas ed on thes e uni on thes e w age (1983) rt there w age hy pothes es . hy pothes i s ferent y et bargai ni ng effi c i enc y oppos i ng i ns pec ti on perhaps rn appeal . Frc i ndi f for ec onomi c s . and A ndrew s i ntui ti v e of turn manage' effi c i enc y through c ornbi ni ng my opi ni on to ' ri ght that many c as es . effi c i enc y paper, N i c k el r a s trong a v ari ati on effec ts , (1984) o n b o th fr a m e wo r k, A s e m p h a size d other and the in in determi ned a v /ay of l abour the appro ac h. Thus in in has are is and w i rl ac k now l edge i mportanc e w ages di scu s s ed l atter, of framew ork v i ew s , l -i ke W = 9 ( WA,r 0 ,Ug r c) . that probabl y rnc orporati ng oppo s i nq w i th in w i rr are i ndus trj -es . abov e functi on and U g are pow er o n the uti l i ty empl oyrnent rg b a r g a i ni ng so fu tio n unj -on the is to in d iffe r e n t th e and U( W) be no doubt a bargai ni ng the given ec onomi s ts c ons i derati ons many d e te r m in e d as w age can o u tp u t. u n io n , tr a d e tw o CONCLUDING REMARKS i ndeterrni nate. produce to n e eded hand r e d u ce d le ve l are t here wA increases, eg. will are d eri vati ves th a t fa ct wo r ke r s T h e wa g e firm th e o n th e but costs p a r tia l th e d ir e ctio n s. and output, of w hi l _e c l earJ _y other like s tandard in methods os w ar.d ec onometri c I 9 R E F E R E NCES Bean, and C .R. c o al P.J. A te st in d u str y: s i on School of th e Ce n tr e Xa 2 7 4 , Pa p e r rE rnpl oyment ( 1 9 87): T u r n b u ll the demand model r, l -abour Labour for in E conomi cs, model s z ed rnark ets r, P enc av el w age and J ournal (1986): empl oy rnent of betw een ' Tes ti ng determi nati on P ol i ti c al E c onomy c ompe- in uni oni - L-39. 94, B ri ti sh D i scus- McDonaId, ment I London and R . I.M. A meri c an rW age bargai ni nq (198f): S ol ow E c onomi c R ev i ew 21, and empl oy - 896-908. Eco n o m ics. of and J.N. J .H . of ti ng N i ck el l , Brown, and E .T. MaC urdy , e r n p lo ym e n t O. ( 1986): Ash e n fe lte r 'Testi ng of Jo u r nal co n tr a ctst, the effi ci ency E conomy P oIi ti -ca1 of 94, 40- H endry , tThe model l i ng (1984): S .J . D .F. and K .F. Ouanti tati v e W al l i s of w ages (eds .) and empl ol rmentr, E c onornetri c s E c ononi c s , Ox ford: B as i l M. A ndrew s (1983): rU ni ons , 1n and B l ac k w el l . 87. N i ckel l -, Card, (1986): D. Carruth, ' Efficie n t Eco n o m ic A r n e r ica n A.J. A., tr a d e t r i es in Br ita in ' tics a8 , and u n io n , 76, L. w i th The Bul l eti n coal of and empl oy ment in B ri tai n rA test and steel E conomi cs of a N i ckel l , i ndus- and S tati s- L-L7. S .J . and empl oy ment: P aper S. M. b a rg a in in g ' , sity of Oslo . Ox ford w ages and E c onomj _c papers 35, N o 291, bas ed C entre for rU ni ons , (1987a): on U K fi rm-1ev el Labour w ages datar, E c onomi c s , and D i s c us s i on London S c hool of E c onomi c s . under Trade U ni ons. N ew M a cm ilL a n . (1988): W adhw ani Tes ts N i cke l l , S .J . effi c i enc y and S. ' Efficie n cy Memorandum wa g es 7, and verstts l ocal D epartment of central E conomi cs, w age E c onomi c s , W adhw ani w ages mi c ro-datar, Hoe1, 1951-79' , real L83-206. (1986): Fi ndl ay b e h a vio ur: Oxfo r d adj ustmentr, costl y LO45-l -071-. ( 1 9 4 4 ) z Wa q e d e te r m inati on J.T . Y o rk: r e vie w o swa ld m o d e l- o f Dunlop, co n tr acts S .J . and empl oy ment: D i s c us s j -on London (1987a): S c hool P aper of ' Fi nanc i al fac tors , Inv es ti gati ons N o 295, C entre us i ng for UK Labour E c onomi c s . U ni verN ymoen, R. (1988): om forhandl i nger, of l l orw ay . ' N oen k ommentarer ti r ny ere l @nn og s y s s el s etti ngr, empi ri s k fors k ni ng unpubl i s hed, B ank