A n E c o n o m i c P e r s p e c t i v e campaigns greatly favors would, after all, need to vote for incumbents (with the ratio of such reforms). average incumbentto-challenger financing nw exceeding 10-to-1). This tends to make district relatively safe for the party that controls the seat, thereby increasing the importance of primaries. Of course, in addition to these longterm structural factors, shorter-term economic and social fluctuationsalso have pronounced effects. n particular, significant economic dwnturns — whether the Great Depression of the 1930s or the Great Recession of the past several years — increase political polarization. No Av Everyday Environmen Law, Nature, and Individual Behavior Jason J. Czarnezki U.S. participation in the war brought a degree of political unity at home, largely because U.S. action was precipitated by the attack on Pearl Harbor. Under conditions of less clear motivation for U.S. military action abroad — such as in the war in Vietnam — the result has not been political unity, but T here is a widening gulf between the two political parties that is paralyz-ing sensible policy action in Washington. This inceasing polarization — the disappearance of moderates — has been taking place for four decades. Th rise of the Tea Party movement is only the most recent vehicle that has continued a 40-year trend. By Robert N. Stavins Polarized Politics Paralyze Policy Why has party polarization increased so dramatically in the Congress over the past four decades? Thee structural factors stand out. These thee factors operate mainly primary challenges, Republican through the replacement of membersmembers shift rightward and of Congress, whether due to death, Democratic members shift leftward. retirement, or challenges from within Senator John McCain (R-Arizona) the party — that is, the ideological evolved from being a moderate at the shifts that cause increasing time of his 2008 presidential run to polarization largely occur when new being a solid conservative in 2010, in members are elected from either response to a primary challenge from party, although a disproportionate a Tea Party candidate. share of polarization has been due to the rightward shift of new Republicans. To a lesser degree, polarization has also taken place through the adaptation of sitting members of Congress as they behave more ideologically once in office. uch political conversions are due to the same pressures noted above: in order to discourage or survive C a h c in w e e T e po fo Faced with the seemingly and its consequences, is di erence? “Yes, there is!” overwhelming prospect there anything that a says Jason Czarnezki, in of global climate change person can do to make a his new book, Everyday First, there is the increasing importance of the primary system, a consequence of the “democratization” of the nomination process that took flight i the 1970s. A small share of the electorate vote in primaries, namely those with the strongest political preferences — the most conservative Republicans and the most liberal Democrats. Thi self-selection greatly favors candidates from the extremes. I S B N : 9 7 8 1 5 8 5 7 6 1 5 2 4 • 1 5 0 p p • It is difcult to be optimistic about the prognosis for American politics divisiveness and polarization. The ultimat impacts on domestic politics of the wars in Afghanistan and Iraq may hinge on whether they are perceived to be patriotic responses to a E p n A E c a $ 2 9 . 9 5 Second, decades of redistricting If the increasing polarization of the — a state prerogative guaranteed byCongress is due to these factors, the Constitution — has produced then it is difficult to be optimistic more and more districts that are about t prognosis in the near term for dominated by either Republican or American politics, because it is Democratic voters. This inceases theunlikely that any of these factors will importance of primary elections, soon reverse course. which is where the key choices The two paties are not about to among candidates are now made in abandon the primary system to many congressional districts. return to smoke filled back ooms. Because of this, polarization has Likewise, state legislatures are proceeded at a much more rapid not willing to abandon their power pace in the House than the Senate. to redistrict (although California’s experiment with an independent citizens commission may provide hope). And public fnancing of campaigns and other measures that would reduce the advantages of incumbency remain generally unpopular (among incumbents, who Thid, the increasing cost of electoral P a g e 1 8 ❧ THE ENVIRONMENT AL FORUM J S p H L h Robert N. Stavins is the Albert Pratt Professor of Business and Government at the John F. Kennedy School of Government, Harvard University, and Director of the Harvard Environmental Economics Program. He can be reached at robert_stavins@harvard.edu. Copyright © 2011, Environmental Law Institute®®, Washington, D.C. www.eli.org. Reprinted by permission from The Environmental Forum, Nov./Dec. 2011