Technology Choices and Growth

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Technology Choices and Growth:

Testing and Expanding the propositions of New Structural

Economics

R. L. Bruno, E. Douarin, J. Korosteleva and S. Radosevic

Prepared for the Transition Economies Meets New Structural Economics

SSEES, UCL June 25-26, 2013

Outline

• Key objectives.

• Theoretical considerations.

– Development Strategies and Technology Choice: the New

Structural Economics (NSE) paradigm

• Data, Technology Choice Index (TCI) construction and methodology.

• Financial sector distortions and TCI.

• Hypotheses Testing.

– Empirical results I: TCI and growth.

– Empirical results II: Financial sector inefficiencies, TCI, and growth.

• Conclusions.

2

Key objectives

• We test the basic propositions of NSE, i.e. the relationship between TCI and growth:

– We employ a larger sample of countries (164) over a longer time span (1963-2009).

• We further expand this theory to transition economics (TE) by testing whether key propositions of NSE hold for the TE group, and its sub-groups, namely Former Soviet Union (FSU) and Central

European Economies (CEE).

Are transition economies special?

• We examine the association between financial sector distortions and TCI with further implications for growth.

3

Development Strategies and Technology

Choice Index (TCI): the NSE paradigm

• Key propositions of NSE:

– Long term growth is feasible only in contexts where policies and institutions are conducive to the development of sectors consistent with the Comparative Advantage of a country: CAF strategy (following).

– TCI is a valid proxy to capture whether a country follow a CAD strategy, comparative advantage defying (vis-

à-vis a CAF strategy):

• Lin (2012): sample of 122 countries, time period including 1962-1999

(see also Lin 2003)

• On average, TCI is significantly negatively correlated with long-term growth measured by GDP pc.

– TCI is expected to be highly correlated to financial distortions: the higher the ‘structural’ distortion the higher the financial one.

4

How to compute the Technology Choice

Index (Lin 2012)

5

Technology Choice Index (cont.)

• What is TCI capturing?

– Higher TCI = more distortion, proxy for CAD strategy

– A context in which policies and institutions favour a capitalintensive manufacturing sector (raising value added in manufacturing AVM, and lowering labour LM)

– This compares with other approaches in the literature:

Lewis

's two sectors development model (1954) (role of unlimited supply of labour)

Rostow

’s stages of economic growth (1991) (V: from precondition to take off

…to beyond mass consumption)

• “Big push” idea,

Rosenstein-Rodan

(1943) (Eastern and S.E. Europe)

– Key point: the shift from low productivity primary production to higher productivity manufacturing is

a pivotal stage

in the development process of an economy. This is not always successful, though.

6

TE meets NSE: an initial assessment

• On an intuitive level, one would expect the countries of CEE and FSU to be primary example of the negative relationship between CAD and growth.

• During central economies with planning: strong heavily emphasis intensive manufacturing: surely a CAD!

on distorted capital

• With transition, a progressive move towards more liberal market economies (with a lot of variations across countries though): surely a move towards a

CAF!

7

Figure 1: TCI2: the Manufacturing Sector productivity in transition economies

Albania Armenia Azerbaijan Belarus Bosnia and Herzegovina

Bulgaria

Hungary

Macedonia

Croatia

Kazakhstan

Moldova

Czech Republic

Kyrgyzstan

Poland

Estonia

Latvia

Georgia

Lithuania

Romania Russian Federation

Serbia Slovakia Slovenia Tajikistan Ukraine

1960 1980 2000 2020 1960 1980 2000 2020 1960 1980 2000 year_num

2020 1960 1980 2000 2020 1960 1980 2000 2020

Graphs by Country

8

TCI and Financial sector distortions

• The CAD and CAF strategy cannot be assessed in an institutional vacuum (Lin et al. 2011).

• A country adopting a CAD strategy will require economic distortions introduced through substantial government

(“forced”).

interventions on the economy

• The development of financial structure is argued to be endogenous to the government's growth strategy with a CAD strategy being associated with a financial structure deviating farther away from its estimated optimal structure (Lin and Xu, 2012).

9

Measures of financial distortions

• Size vs. efficiency

• Financial structure distortions (

size

)

Size 1=

Size 2=

• Financial structure gap

(Demirguc-Kunt et al. 2011)

• Estimate financial structure ratio based on sample of

OECD countries.

• Calculate sample-wide country-year residuals based on the estimated regressions, and take the logarithm.

10

Measures of financial distortions

• Banking Inefficiency

– the net interest margin is equal to the value of a bank’s net interest revenue as a share of its total earning assets.

– overhead cost is the value of a bank’s overhead costs as share of its total assets.

Higher level of interest margins and overhead costs indicate lower levels of banking efficiency (lower competition).

11

Hypotheses

Hypotheses Type of relevance of

NSE propositions

Time relevance

TCI is especially relevant prior to the 1980s but not for later periods in view of decrease incidence of autonomous development strategies

After 1980s we should observe lower level of TCI as effects of CAF strategies and thus the relationship between TCI and growth should be weaker

Relevance for transition economies

Financial distortions

Transition economies differ from the rest of the sample : a negative relationship between TCI and growth is less likely for them, but we expect some differences across CEE and FSU with the TCI in the former being positively related to growth, whereas TCI in the latter being negatively associated with growth (think at the comparatively more advanced manufacturing sector of CEE vis-a-vis FSU)

Higher level of TCI is associated with a financial structure deviating farther away from its estimated optimal level , but this effect differs across group of countries.

The financial sector inefficiencies should be strongly correlated to TCI in highly distorted economies .

The link between TCI and financial distortions is less pronounced in transition countries , being more robust in FSU countries and less so in Central and East European economies.

The effect of TCI on growth is further reinforced via larger values of deviation of the optimal financial structure from its actual one.

12

Table 1: Estimating the effect of TCI2 on growth: robust regression results

Dependent variable: growth rate of the GDP pc (constant 2000 US$)

Ln TCI2

(1) (2) (3) (4)

Ln_gdp_pc_(start decade)

-0.007***

(0.002)

-0.003***

0.001

-0.008***

(0.002)

-0.003***

0.001

-0.008***

(0.002)

-0.002**

0.001

0.004

(0.003)

-0.040***

0.004

Ln_Population Total _(start decade) ln_axrateLCUperUS

0.001**

(0.001)

0.001***

(0.000)

0.001**

(0.001)

0.001***

(0.000)

0.013*

(0.007)

-0.003

(0.003)

0.001**

(0.001)

0.001***

(0.000)

-0.025***

(0.006)

-.002***

(.001)

Distance to equator

Landlocked

0.015**

(0.007)

-0.003

(0.003)

-

0.011*

(0.007)

-0.003

(0.003)

-

-

Ln TCI2_x_ TE 0.015**

(0.007)

-

-

Ln TCI2_x_ CEE

Ln TCI2_x_ FSU -

-

-

0.017**

(0.007)

-.147*

(0.083)

0.031***

0.032**

(0.014)

-.162**

(0.07)

.566*** Constant 0.035*** 0.034***

Time fixed effects (decade)

Country fixed effects

Observations

(0.013)

Yes

No

439

(0.013)

Yes

No

439

(0.012)

Yes

No

439

(0.088)

Yes

Yes

439

F-st.

15.84*** 15.11***

Source: World Bank Financial Structure Dataset (2012), WB WDI 2012 edition; UNIDO

14.14*** 10.90***

Note: *,**,*** denote significance on the 10, 5 and 1-percent level, respectively. Standard errors reported in parentheses.

13

TE meets TCI

• Unexpectedly low level of TCI before and at the onset of transition: low level of distortions?

• Positive relationship between growth and TCI for this sub-sample of countries, when TE are pooled together.

• Quite puzzling!

• Variations in the relationship between TCI and growth across CEE and FSU, though.

14

TCI2 in Highly Distorted Economies

Benin Bolivia Brazil Burkina Faso Burundi Cameroon

Côte d'Ivoire

Central African Republic China Ecuador El Salvador Eritrea

Ethiopia

Malawi

Gambia

Nicaragua

Ghana

Niger

Iran

Nigeria

Kyrgyzstan

Papua New Guinea

Lesotho

Paraguay

Peru Rwanda Senegal Somalia Suriname Syria

1960 1980 2000 2020 1960 1980 2000 2020

Zambia Tanzania Thailand Uganda

1960 1980 2000 2020 1960 1980 2000 2020 1960 1980 2000 2020 1960 year

1980 2000 2020

Graphs by Country_NUM

15

Table 2: Estimating the effect of TCI2 on growth. Highly-distorted countries: robust regression results

(1) Dependent variable: growth rate of the GDP pc (constant

2000 US$)

Ln TCI2

Ln_gdp_pc_(start decade)

Ln_Population Total _(start decade) ln_xrateLCUperUS

Distance to equator

Landlocked

Ln TCI2_x_ HDD

Constant

Decade time fixed effects

Observations

F-st.

-0.004

(0.002)

-0.001**

0.001

0.001

(0.001)

0.003***

(0.000)

0.016**

(0.007)

-0.001

(0.003)

-0.004**

(0.002)

0.036***

(0.013)

Yes

439

14.75***

(2) Excluding potential outliers

-0.004

(0.003)

-0.001***

0.001

0.001

(0.001)

0.001***

(0.000)

0.015**

(0.007)

-0.002

(0.003)

-0.004*

(0.002)

0.036***

(0.013)

Yes

429

14.15***

Source: World Bank Financial Structure Dataset (2012), WB WDI 2012 edition; UNIDO

Note: *,**,*** denote significance on the 10, 5 and 1-percent level, respectively. Standard errors reported in parentheses.

16

Highly Distorted Economies meet TCI

• Highly distorted economies seem to show a behaviour fully predicted by the NSE.

• Negative relationship between growth and TCI for this sub-sample of countries, when are pooled together.

• Variations in the relationship between TCI and growth across CEE and FSU, HDD.

• A non-monotonous relationship?

17

Financial structure gap and TCI: Empirical

Results

• The relationship between TCI and financial structure gap differs across countries depending on the level of

TCI .

• Our results suggest that deviation from optimal financial structure is only significant for relatively high values of TCI2 (75 th quantile) for our sample of countries as a whole, and for countries specifically .

the group of FSU

• The positive relationship between TCI2 and distorted financial structure is strongly and positively significant for the group of Highly-distorted regardless of the range of values for TCI2.

economies

18

Table 3: TCI and Financial Structure Gap:

Simultaneous Quantile Regression

R-sq 50th R-sq 75th Rsq Quantile/ Dependent variable: TCI2

25th Obs

Whole sample

Size1

Size2

-0.02**

(0.009)

-0.023***

0.08

0.08

-0.003

(0.011)

-0.007

(0.01)

.20

.20

0.018**

(0.01)

0.015*

(0.008)

0.31

0.31

1233

1229

Transition economies

Size1

Size2

0.04

(0.04)

0.04

(0.05)

CEE

Size1

Size2

-0.01

(0.027)

0.001

(0.05)

FSU

Size1 0.035

(0.05)

0.001

Size2

(.5)

Highly-distorted economies

Size1 .20***

(0.068)

0.08

0.08

0.003

0.002

0.22

0.22

-0.01

(0.03)

-0.01

(0.03)

-0.026

(0.039)

0.014

(0.05)

00.07

(0.055)

0.029

(0.064)

0.03

.20

0.03

0.02

0.31

0.30

0.01

(0.017)

0.018

(0.02)

0.006

(0.034)

-0.01

(0.03)

0.16***

(0.04)

0.09

(0.06)

0.27

0.27

0.12

.10

0.51

.48

200

198

159

157

41

41

0.09

0.25***

(0.07)

0.19

0.16***

(0.03)

0.22

124

Size2 .19** 0.06

.18** .17

0.14*** .22

124

(0.07) (0.03)

19 regression controls for the level of economic development proxied by ln of GDP pc at const 2000 US dollars. For reproducibility of the results we run 2000 replications with seed set at 1001.

Banking sector inefficiencies and TCI

• There is positive association between bank inefficiency and high values of TCI in the whole sample.

• Decrease in net interest margin and respectively increase in the degree of competition in banking sector has positive effect in Central and Eastern European countries for reducing TCI, we fail to find any significant results for FSU economies, though.

• Similarly, to financial structure results we get robust results for the group of Highly-distorted economies, suggesting that reduction in net interest margin, and consequently increase in bank efficiency will facilitate a move towards CAF strategy.

20

Table 4: TCI2 and Bank Inefficiency measures: Simultaneous Quantile

Regression results

Quantile/

Dependent variable: TCI2

25th R-sq 50th R-sq 75th Rsq Obs

Whole economy

Overhead costs

NetIntMargin

Transition economies

Overhead costs 0.07

NetIntMargin

(.1)

0.01

(.11)

CEE

Overhead costs

-.13***

(0.02)

-0.03

(0.04)

NetIntMargin

0.07

(0.08)

.18**

(0.08)

FSU

Overhead costs

NetIntmargin

-.43*

(.233)

-.27**

(.108)

Highly-distorted economies

Overhead costs -0.02

(0.06)

.1

0.08

.14

.13

0.01

0.02

.21

.28

-0.08***

(0.03)

0.01

(0.03)

.24***

(0.058)

0.005

(0.074)

.26***

(0.07)

.23***

(0.07)

-.41

(.33)

-.33**

(.13)

.23

.21

0.03

.24

0.09

0.09

.22

.27

0.000

(0.03)

0.09***

(0.032)

0.19

(0.085)

0.01

(0.075)

0.23***

(0.06)

0.23***

(0.065)

-.44

(.32)

.-25

(.20)

0.35

.34

0.31

.30

.16

.13

.28

.23

1246

1269

233

238

172

170

172

68

.19

0.06**

(0.024)

.28

0.03

(0.06)

.27

160

NetIntMargin 0.32*** .21

0.35*** .32

0.28** .29

162

(0.09) (0.06)

Source: World Bank Financial Structure Dataset (2012), WB WDI 2012 edition; UNIDO .

(.12)

21 regression controls for the level of economic development proxied by ln of GDP pc at const 2000 US dollars. For reproducibility of the results we run 2000 replications with seed set at 1001.

Growth, TCI and Financial Structure Gap

• Larger deviations in actual financial structure from its optimal one further reinforce a negative effect of TCI on growth.

22

Growth, TCI and Financial Structure Gap

Explanatory variables

Ln_gdp_pc_start

Ln TCI

FinStr gap

Ln TCI_x_FinStr_gap

Landlocked

Legal origin UK

Ln Population Size

Natural Resources Exports

Private Credit to GDP

Number obs.

F st.

Pr>z AR(1) / Pr>z AR(2)

Hansen test of overid. restrictions, Chi2

(Pr.>chi2)

Coefficient

-0.014**

(0.06)

-0.019**

(0.009)

-0.001

(0.004)

-0.005**

(0.002)

0.003

(0.006)

-0.016

(0.010)

0.007*

(0.002)

0.0001

(0.0001)

0.008

(0.007)

171

14.68

00.016/0.666

.294

Note: SYS GMM regression results

Dependent variable: growth averaged over 5-year non-overlapping periods of time.

23

Conclusions I

• Our analysis confirms the negative relationship between TCI and growth found by Lin (2012).

• These results also hold for the group of

highly distorted economies

.

• However, we find that the

NSE propositions cannot be generalized to the overall group of transition economies for which the relationship is positive.

• This positive relationship is due to two different subgroups. For CEE, the relationship between TCI2 and growth is positive while for the FSU is negative.

24

Conclusions II

• We also confirm that the positive relationship between larger financial sector distortions and Technology Choice

Index, although this relationship is not homogeneous, and it differs across different groups of countries depending on the aspect of financial structure or financial sector distortions we look at (size vs. efficiency)

• While controlling for potential endogeneity between economic growth, TCI and financial sector distortions our study also reveals that the negative effect of TCI on growth is further reinforced by larger deviation in the actual financial structure from its estimated optimal level.

25

Discussion I

• The Technology Choice index is very important element of the development strategy of a country

• Also the Financial sector Distortion (size and/or efficiency) is a key ingredient for a sustainable development strategy.

26

Discussion II

• We discussed the relevance/adequacy of TCI as an indicator of CAD/CAF strategy and/or distortion.

• In fact, the relationship between TCI/FinDist and growth seems to be characterised by:

1. Non-monotonicity

2.

Groups’ specific effects (CEE, FSU, HDD)

We are developing our research in this direction by constructing a simultaneous estimation of the

TCI=f(FinDist)

Growth=f(TCI) =>

Growth=f(TCI(FinDist))

We are aware of important challenges for endogeneity and selection.

27

THANK YOU

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