I. Introduction and Summary
This paper investigates reforms that Central American countries could undertake to improve their medium- to long-run economic growth.1 The region has grown in recent decades, but at lower rates than in key comparator countries. Furthermore, at the growth rates expected in upcoming years, the region would make only modest strides towards narrowing the gap with more developed countries. Given these facts, an examination of the drivers of growth would be useful to identify possible policy measures to raise growth above historical performance.
The aim of this paper is to construct a model that captures the key factors that influence growth and identify the areas in which reforms in Central American countries could concentrate. This model takes advantage of two untapped data sources: the first is a broad database on structural efficiency put together within the IMF and the second is the latest revision of the Penn World Table (PWT), Version 7.0, which extends through 2009 and was released in April 2011 (Heston and others, 2011). The econometric technique employed, System GMM, is used frequently in empirical studies on growth, as it addresses some of the complexities raised in estimating growth models across a panel of countries.
Our cross-country growth model arrives at the standard result that the accumulation of the factors of production—physical and human capital—is fundamental for growth. Increasing the investment-to-GDP ratio by 5 percentage points (slightly less than one standard deviation) raises growth by 0.6 percent, while increasing advanced educational attainment by one year raises growth by 0.3 percent.
In addition to these results, a key finding is that sound structural policies play an important role in economic growth. A broad index of structural efficiency has a strong and statistically significant impact on economic growth. The equations estimated here imply that engaging in reforms that would raise this index by one standard deviation (7 points on a 100 point scale) would raise a country’s annual growth rate by ½ percent per year. The aggregate index has a stronger and more significant coefficient than its subcomponents, suggesting that the growth benefits of structural reforms are maximized by engaging in complementary reforms across several areas. Nevertheless, the effects appear to be particularly strong for reforms to the domestic financial system and for external transactions. Within the domestic financial system, sound bank supervision frameworks and well-developed securities markets are found to have the largest impact on raising growth. These results on the importance of structural efficiency could be followed up with more work to understand the channels by which reforms in these areas affect economic growth.
The above results suggest that Central America could significantly boost growth by raising these growth determinants to the levels of comparator countries. A comparison to other countries in Latin America that have successful structural reform records—Chile, Mexico, and Peru—implies that, depending on their current degree of efficiency, the economies in the region could raise their growth rates by ½ to 2½ percent through structural reforms, especially by developing their financial systems. Several countries could also attain a significantly higher growth rate by increasing their investment in physical and human capital. Given the deep-seated nature of these reforms, they would all require sustained efforts over a prolonged period of time.
The rest of this paper describes Central America’s historical growth performance (Section II), lays out the model used to estimate the determinants of growth across countries (Section III), gives the empirical results (Section IV), and offers some indicative magnitudes for the potential boost to growth in Central America if the key growth determinants were raised to the levels of successful comparator countries (Section V). Section VI concludes.
II. Central America’s Growth Performance Since 1960
Economies in Central America have grown in the last 50 years, but not by enough to reduce the gap with advanced economies. Figure 1 shows that in terms of per capita GDP at purchasing power parity (PPP), the annual average growth of 1.7 percent experienced in Central America was similar to that in South America and Mexico (SAMEX) but lagged that of the United States, other advanced economies (ADVCD), and especially East Asia (EASIA).2 As a result, average income per capita in Central America declined to 16 percent of the U.S. level in 2005–2009, from 19 percent in the early 1960s (Figure 2).
Figure 1.Economic Growth Around the World Figure 2.Relative Incomes Around the World
There have been important differences in growth rates among Central American economies. Figure 3 shows that per capita income has grown rapidly, by about 3 percent per year, in the Dominican Republic and Panama. Per capita income in Nicaragua has fallen, while the other four countries have experienced growth of between 1 and 2 percent per year.
Figure 3.Economic Growth in Central America
Central America has also experienced substantial variation in growth rates over time. Figure 4 shows that most countries experienced solid growth in the 1960s and 1970s. In the 1980s, most countries experienced declines in per capita income, which is explained in some cases by domestic conflict. In the 1990s, growth generally recovered but was not strong enough to restore the level of income to its previous trend. Growth in the 2000s was relatively strong but fell short of that in other emerging markets and implied a slow rate of convergence with advanced economies. The region as a whole averaged 2.6 percent growth in per capita PPP GDP per year from 2000 to 2008, compared to 2.1 percent per year in advanced economies and almost 4 percent in all other emerging economies. Growth at this pace would leave the region at only 20 percent of the U.S. level of income in 20 years’ time.
Figure 4.Economic Growth in Central America
Looking ahead, the outlook is that most countries will not grow at a pace rapid enough to close a large portion of the gap with advanced economies. The real GDP growth forecasts of IMF staff for 2011–16 are presented in Figure 5 (note these figures are not at purchasing power parity, and hence not strictly comparable to those in other figures). These forecasts suggest that no country will experience appreciably higher growth than it did before the crisis, while the majority of economies in the region will decelerate compared to the period before the crisis. These estimates imply a continued slow rate of convergence outside of the Dominican Republic and Panama.
Figure 5.Central America: Growth Forecasts
III. A Framework to Analyze the Determinants of Economic Growth
Understanding what drives economic growth across countries is vital in order to explain Central America’s relatively low growth rate and offer recommendations for policies to raise growth. Growth models need to take into account a number of econometric challenges (see Durlauf and others, 2005, for a comprehensive review), especially the simultaneous determination of both the level of income and other variables thought to influence growth, the long lags between changes in the determinants of growth and their full impact on income, and observed heterogeneity across countries.
To address these issues, this paper employs System GMM, a dynamic panel data technique that has been used widely in the empirical growth literature over the last decade. The model was developed by Arellano and Bond (1991), Arellano and Bover (1995), and Blundell and Bond (1998), in large part to address the econometric issues typical in the analysis of economic growth across countries. Roodman (2009a) discusses the strengths and weaknesses of System GMM. Empirical applications to cross-country growth include Aisen and Veiga (2011), Chang and others (2009), and Kumar and Woo (2010).
System GMM uses fixed effects—a dummy for each country—to capture idiosyncratic features of a country that do not vary over time. It addresses the endogeneity of the regressors by instrumenting them with their own lagged values. This is implemented with a system of two equations, one in differences with the lagged explanatory variables in levels as instruments, and the other in levels with the lagged explanatory variables in differences as instruments. The regressions in this paper use collapsed instruments with only the first acceptable lag as the instrument, in line with the findings in Roodman (2009a, 2009b) and Mehrhoff (2009) that these settings minimize bias and endogeneity concerns. Consider a model in which a country’s income yit in a given period is determined by its own lagged value and a vector of control variables x:
Subtracting lagged income, yi,t−1, from both sides, the growth rate is simply modeled as:
Recognizing that there may be factors not observed by the model that are heterogeneous across countries but not varying over time, the error term becomes:
where μi is the fixed effect and vit is the idiosyncratic disturbance that can differ across countries and periods. The vector of control variables includes time dummies for each period in order to control for factors that affect growth across countries, such as the global business cycle. To reduce the role of dynamics in the results, the regressions are run on data averaged across five-year periods, as is typical in the literature. The key diagnostic tests are for second-order autocorrelation of the residuals in differences (which implies first-order autocorrelation of the residuals in levels) and the Hansen test for exogeneity of the instruments; rejection of the null would indicate a specification problem, while Roodman (2009a, 2009b) suggests that even a p-value on the Hansen test of 0.2 can indicate problems with endogeneity of the instrument set.
IV. Cross-Country Determinants of Economic Growth
We assembled a broad, cross-country dataset on income per capita and its determinants, spanning from 1960 (or earlier) to 2009. In considering the variables to be included in (2), we proceed from a specification of the Solow growth accounting framework assuming a Cobb-Douglas production function:
where Yit (aggregate income) is determined by the various factors of production—Ait (total factor productivity), Kit (the capital stock), and Hit (labor inputs) where Hit = hitLit, with hit representing human capital per worker and Lit the labor force.
The growth regressions attempt to capture the effects of changes in physical capital by including the ratio of investment to GDP as a proxy for the change in the capital stock. Inputs of human capital are measured by two variables: the share of the population that is of working age,3 and the average years of advanced schooling (schooling beyond the primary years) of the working-age population.4 None of these indicators capture the quality of physical or human capital, as no panel of data broad enough to be able to include in the analysis was found, and this remains an area for further research. The database also contains other variables typically thought to affect growth—including standard indicators of the soundness of macroeconomic policy, measures of political stability, and other institutional features. These variables could affect growth through enhancing total factor productivity or by facilitating the accumulation of the above factors of production, although in the latter case colinearity with the data on physical and human capital could hamper inference.
A. Structural Reforms Data
This study augments the analysis of the traditional determinants of growth by including in the database indexes quantifying various aspects of structural efficiency. This dataset—although not aggregated into the broad index used here—was constructed by the IMF and analyzed in a cross-country growth context (mostly using techniques other than System GMM) by Spilimbergo and others (2009), Christiansen and others (2009), and Prati and others (2010). The structural indexes used in this paper cover three broad areas:5
Financial system: This index encompasses various factors, including the degree of controls on the allocation of credit; ceilings or other controls on interest rates; entry barriers and other restrictions on competition; the quality of bank supervision frameworks and prudential regulation; and policies that facilitate the development or efficient operation of domestic securities markets.6
External transactions: This index covers average tariffs on international trade and restrictions on current account and capital account transactions.
Product markets: This index captures the degree of flexibility of agriculture, electricity, and telecommunications industries.
This dataset represents a significant expansion of information on the quality of structural policies across countries, time, and sectors of the economy, which implies that it could potentially lead to a greater understanding of the role of structural reforms in economic growth. Naturally, the use of this dataset comes with some caveats. These series translate qualitative features of an economy into quantitative indexes suitable for regression analysis, which naturally involves an element of imprecision, but the creators of the dataset made substantial efforts to maintain cross-country comparability. In addition, while this handful of indicators does not fully represent all the complexities of an economy, they may capture important aspects that could have a bearing on growth.
All of the indexes and subcomponents are constructed on a scale from 0 to 100, with a higher value indicating greater structural efficiency and expected to have a positive relationship with growth. These three indexes are also averaged with equal weights into a broad index of structural efficiency. There are 79 countries—including all Central American countries except Panama—covered by the PWT since 1980 and for which all the structural efficiency data are available,7 and the regressions that follow focus on this group and subsets of it.8
The broad cross-country trend is for greater efficiency in the areas covered by these indexes. Figure 6 shows a rising trend in all regions, although the timing and magnitude of reform has varied. Advanced economies reformed at a moderate pace from the late 1970s until about 2000, when the pace of reform slowed. Reform in Central America was slow until the late 1980s, when the pace accelerated significantly. This mirrored trends in South America and Mexico. It should be noted that while the gap has narrowed, the countries of Central America remain less flexible than the advanced economies and fast-growing countries like Hong Kong SAR, Korea, Singapore, and Taiwan P.o.C. (TIGERS).
Figure 6.Structural Efficiency: Broad Index
B. Regression Results
Regression results confirm that factor accumulation—both in terms of physical and human capital—is important for growth. Armed with the data described above and employing System GMM, Table 1 shows the results of several regressions including both the structural indexes and the standard control variables described above. An increase in the investment-to-GDP ratio of 5 percentage points (slightly less than one standard deviation) is estimated to raise growth by 0.6 percent, while an increase of one year (close to the sample median change over 20 years) in the advanced educational attainment of the working population is estimated to raise growth by 0.3 percent.
|Dependent variable: growth in PPP GDP per capita|
|Broad structural index||6.199***|
|Financial system index||3.542***|
|External transactions index||4.195**|
|Product markets index||2.254*|
(log of PPP GDP per capita)
(log of investment to GDP)
(log of advanced schooling)
(log of 1 plus inflation rate)
(as share of population, log)
|Number of countries||79||79||79||79||79|
|Number of instruments||22||22||22||22||26|
|Hansen test p-value||0.197||0.294||0.529||0.414||0.385|
|AR(2) test p-value||0.293||0.216||0.260||0.285||0.277|
|F-test p-value (joint significance of reform indexes)||0.006***|
This specification also controls for the effects of a country’s initial income as well as for its demographic and macroeconomic conditions. Conditional convergence holds—the fact that countries with lower income, holding everything else constant, are expected to grow faster— as the coefficient on the lagged level of income is negative and significant. Macroeconomic stability, as (negatively) proxied by the rate of inflation, and the ratio of the working-age population to the total population are also found to be significant.
In addition to these results, the regressions indicate that structural efficiency has a positive impact on the rate of economic growth. The broad structural index is strongly significant—a one standard deviation increase (7 points on the 100 point scale) raises growth by ½ percent (Table 1, column 1). The financial, external, and product markets indexes are also statistically significant, and sometimes strongly so (columns 2–4). The coefficients on these sectoral indexes are lower than for the broad index, likely because reforms tend to be correlated across sectors. This is confirmed by the results of the regression in column 5, where each of the sectoral indexes enters positively and insignificantly, but an F-test shows that the three regressors are jointly significant at the one percent level. This could be consistent with the hypothesis that reforms across a broad range of sectors are better-suited to raise growth than piecemeal reforms.
To examine the relative impact of specific reforms, the detailed subcomponents of the sectoral indexes were included in regressions one at a time. The coefficients and T-statistics for these regressions are displayed in the first column of Table 2, with results for the broad structural index and the sectoral indexes shown for sake of comparison. As in Table 1, the pattern is that regressions on narrower indexes are estimated to have smaller effects and are less precisely estimated than the broader indexes into which they were aggregated.
|Dependent variable: growth in PPP GDP per capita|
|Broad structural index||6.199***|
|Financial system index||3.542***|
|Interest rate liberalization||0.989|
|Competition in services||1.613**|
|External transactions index||4.195**|
|Average tariffs on trade|
(increase implies lower tariffs)
|Current account transactions||3.654**|
|Capital account transactions||1.430*|
|Product markets index||2.254*|
|Electricity - independent|
|Electricity - wholesale|
|Telecommunications - private|
|Telecommunications - competition|
in local service
Both the financial system index and some subcomponents are significantly associated with growth. The most important subcomponent is banking supervision, consistent with the results in Reinhart and Rogoff (2009) and Laeven and Valencia (2008) on the negative effects of banking crises on growth. Policies to facilitate the operation of securities markets and the degree of competition in services are also strongly significant.
The external transactions index is also found to be important for growth. The external index and its subcomponents related to average tariffs and the liberalization of current account transactions are significant, while liberalization of capital account transactions is only marginally significant in the base specification. Reforms of product markets, in particular agriculture, are associated with marginally higher growth, while the model is unable to distinguish which reforms matter in the electricity and telecommunications industries.
C. Robustness Checks
Alternative estimates excluding various country groups suggest that the significant effects of structural efficiency on growth are independent of geographic or income-related factors. The first column in Table 2 is compared with the second through fourth columns, which exclude, in respective order, Sub-Saharan Africa, advanced countries (defined as countries that were OECD members by 1975), and Central American countries.9 The estimated coefficients are consistent across these subsamples, especially for the broad structural index, the financial system index, and the external transactions index, while the product markets index loses significance when the OECD members are excluded. Excluding both the OECD and Sub-Saharan African countries simultaneously (results not shown here) gives very similar results, suggesting that these findings are very applicable to the type of country in Central America’s income range. Overall, excluding half the countries in the sample at one time or another does not affect the results.
Further robustness checks whose results are not shown here confirm this model’s applicability to Central America.
Regional dummies, which in some studies have been found to be important drivers of long-term growth (for example, Sala-i-Martin and others, 2004) were not found to be significant or alter the significance of the structural indexes.
Interactions of the explanatory variables with dummies for Central America were also not significant. No interactions with the structural indexes are significant, suggesting that in Central America the impact of structural reforms on growth has been similar to the cross-country experience. Interactions of the Central America dummy with investment and human capital were also not significant. The significance of the structural indexes does not change in the specifications where other variables are interacted with the regional dummy, further confirming their robustness.
Summarizing the findings of this section, the model estimated here finds that reforms to make the economy more flexible and improve the quality of regulation can be an important factor to foster economic growth. In addition to the factors typically associated with higher growth—conditional convergence, factor accumulation, and macroeconomic stability—the model finds that indexes of structural flexibility have a positive impact. These findings hold across regions and income groups, and apply well to Central America in particular. Broader measures of structural efficiency perform better, suggesting that advancing on multiple fronts may help to maximize the growth impact of reforms. Reforms to promote domestic financial intermediation and bolster financial sector soundness, along with trade and current account liberalization, appear to be the most potent measures for boosting long-term growth.
V. How Central America Could Boost Growth
This section provides estimates of the potential increase to growth in Central America of catching up to comparator countries in key growth determinants. The results of the previous section are applied in a comparison of Central America with Chile, Mexico, and Peru (referred to hereafter as LA-3), three Latin American countries with a successful track record in structural reforms and solid historical growth performance.
For each determinant of growth, the gap between each Central American country and the LA-3 is calculated. This gap is then multiplied by the coefficient on that variable estimated in the previous section. This provides an indication of the potential increase in the long-run growth rate that could be attained in a given Central American economy if that determinant of growth were raised to the level of the LA-3. For country i the impulse to growth from variable j, gij, is expressed as:
where jl is the value for the LA-3 of the variable under analysis.10 This exercise abstracts from some key issues. For example, some of these changes represent profound reforms and could take years to implement. In addition, for some variables quality is crucial, such as investment in physical or human capital, but this is not taken into account here due to lack of available indicators. Nevertheless, the purpose is to provide an illustrative magnitude for potential outcomes that could be realized over time in order to highlight areas that could be reformed, and not to obtain a point estimate that would result from application of a specific policy package.
A. Raise Investment in Physical Capital
Given their current rates of investment, El Salvador, the Dominican Republic, and Guatemala would stand to gain the most by boosting levels to those of comparator countries. Figure 7 shows the average investment-to-GDP ratios for 2005–09 for each Central American country and the LA-3. Figure 8 displays the growth impact, calculated as in equation (5), assuming that Central American countries raise investment-to-GDP to the LA-3 average or maintain it at the current level if already higher than the LA-3. El Salvador had the lowest investment ratio, at 15 percent of GDP, and thus could hypothetically raise growth the most by raising investment—in this case, by between 1½ and 2 percent. The estimated potential effect on growth from raising investment in the Dominican Republic and Guatemala is over 1 percent, while it is lower in Costa Rica and Panama.11 Honduras and Nicaragua boast higher investment ratios than the LA-3, although in these countries there also may be issues of quality and valuation in the national accounts.
Figure 7.Central America and Comparators: Investment-to-GDP Ratios Figure 8.Central America: Effect on Growth from Raising Investment
B. Raise Investment in Human Capital
Guatemala has the most space to raise growth through human capital investment. The average working-age adult in Guatemala had less than one year of advanced schooling (schooling beyond the primary level) in 2005–09, 0.7 years behind El Salvador, the next closest country (Figure 9). By contrast, Panama’s average of 3.9 years of advanced schooling was ahead of the LA-3. This is due in part to an increase of 1.2 years since 1990, twice as much as the average increase over that period in the rest of Central America. Figure 10 shows that the estimated effect on growth in Guatemala of raising educational attainment to the level of its comparators is over 1½ percent, with El Salvador the next highest at nearly 1 percent. These are significant gains, but would require a widespread and sustained investment in human capital, given that the effects would only accumulate as better-educated new workers enter the labor force and eventually comprise an increasing share over time.
Figure 9.Central America and Comparators: Years of Advanced Education Figure 10.Central America: Effect on Growth from Raising Advanced Education
C. Engage in Structural Reforms
There is scope for improving growth through structural reforms in Central America. Despite significant heterogeneity in the flexibility of the economies of the region, every country in the region could reform in some area in relation to the LA-3. Figures 11–14 display the latest values of the broad structural index and the indexes for the domestic financial system, external transactions, and product markets.
All countries in the region have domestic financial systems that are less conducive to growth than the LA-3 (Figure 12). Among the subcomponents of this index, the region scores relatively low in bank supervision and the development of domestic securities markets, two points corroborated by Delgado and Meza (2011) and Shah and others (2008), respectively. Thus, reforms have lagged the most in some of the areas which have been identified as having the strongest impact on growth.
Figure 11.Central America and Comparators: Broad Structural Index Figure 12.Central America and Comparators: Domestic Financial System Index Figure 13.Central America and Comparators: External Index Figure 14.Central America and Comparators: Product Markets Index
The region scores better in terms of openness to external transactions. El Salvador and the Dominican Republic are the countries with the largest gap compared to the LA-3 (Figure 13). El Salvador and Guatemala both score highly in terms of flexible product markets, and the room to improve is largest for Honduras and Costa Rica (Figure 14). Indeed, both countries have undertaken reforms to their telecommunications sectors since the period covered by the database.
Engaging in structural reforms to bring the efficiency of each Central American economy to levels of the LA-3 could substantially increase potential growth. We calculated the effect on growth for each country implied by reaching LA-3 levels of flexibility for the domestic financial system, external transactions, and product markets indexes (with the Central American country maintaining its score in areas where it already meets or exceeds LA-3 levels). Honduras was identified as having the most to gain from engaging in structural reforms, with potential gains of about 2½ percent stemming primarily from financial sector reforms and secondarily from product market reforms (Figure 15). Costa Rica and the Dominican Republic could raise growth by an estimated 2 percent. Both countries have space to improve efficiency in all sectors. Potential gains in Guatemala and Nicaragua would mainly come from financial sector reforms, while for El Salvador the gains would come from external reforms.
Figure 15.Central America: Effect on Growth from Structural Reforms
Summarizing this section, we find that structural reforms could play an important role in boosting Central America’s growth performance. Furthermore, policies to facilitate investment in physical and human capital would raise growth in most countries. For Costa Rica, the most promising avenues appear to be reforms of the domestic financial system and product markets; for the Dominican Republic, engaging in financial and external reforms and boosting investment; for Guatemala and El Salvador, investing in both physical and human capital; and for Honduras and Nicaragua, reforming the domestic financial system. For Panama, this study finds that the high investment rate, relatively well-educated labor force and its external openness appear to be key supports for its solid growth.
This paper has constructed a growth model and finds that in addition to the factors typically associated with improved economic growth—investment, human capital, and macroeconomic stability—structural efficiency is an important determinant of an economy’s long-run growth rate. This is consistent with the idea that a substantial proportion of the cross-country variation in income levels derives from differences in total factor productivity (Easterly, 2005; Hall and Jones, 1999). The finding that structural policies affect growth helps shed light on what drives productivity and future research should attempt to gain a greater understanding of the channels through which this operates.
This paper has identified low levels of physical and human capital as important constraints on growth in several countries in Central America. Some countries could raise their growth rates by over 1 percent per year by increasing investment in physical capital; for others, similar gains could come by investing in education.
The results also indicate that undertaking structural reforms could be a key component in a strategy to improve economic growth. All countries in the region could make their economies more flexible in one or more sectors, and in some areas there is substantial room for improvement. Estimates based on cross-country growth regressions suggests that countries in the region could, in the long run, raise their annual growth by ½ to 2½ percent by making their economies as flexible and well-regulated as other economies in the hemisphere with successful track records. For most countries, this includes bolstering financial supervision and taking steps to develop domestic securities markets. For some countries, liberalization of important industries like agriculture, electricity, and telecommunications would make a significant contribution.
The potential gains are substantial, but can only be realized over the long term, and as the product of a concerted effort to raise growth, given that the policies required to reach the suggested benchmarks would imply significant structural transformation. Nevertheless, the experience of other countries has revealed important lessons on which to draw.
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|ADVANCED||Malaysia *||Barbados||Madagascar *|
|Australia *||Nepal *||Benin||Malawi|
|Austria *||Philippines *||Botswana||Mali|
|Belgium *||Singapore *||Bulgaria *||Mauritania|
|Canada *||Sri Lanka *||Burkina Faso *||Mauritius|
|Denmark *||Taiwan, P.o.C. *||Burundi||Morocco *|
|Finland *||Thailand *||Cameroon *||Mozambique *|
|France *||Vietnam *||Cape Verde||Namibia|
|Germany *||SAMEX||Central African Republic||Niger|
|Greece *||Argentina *||Chad||Nigeria *|
|Iceland||Bolivia *||Comoros||Pakistan *|
|Ireland *||Brazil *||Congo||Papua New Guinea|
|Italy *||Chile *||Cote D’Ivoire *||Poland *|
|Japan *||Colombia *||Cyprus||Romania *|
|Luxembourg||Ecuador *||Egypt *||Rwanda|
|Netherlands *||Mexico *||Equat Guinea||Senegal|
|New Zealand *||Paraguay *||Ethiopia *||Seychelles|
|Norway *||Peru *||Fiji||Sierra Leone|
|Portugal *||Uruguay *||Gabon||South Africa *|
|Spain *||Venezuela *||Gambia, The||Syria|
|Sweden *||CAPDR||Ghana *||Tanzania *|
|Switzerland *||Costa Rica *||Guinea||Togo|
|United Kingdom *||Dominican Rep *||Guinea-Bissau||Trinidad and Tobago *|
|United States *||El Salvador *||Haiti||Tunisia *|
|EASIA||Guatemala *||Hungary *||Turkey *|
|Bangladesh *||Honduras *||Iran, I.R. of||Uganda *|
|Hong Kong SAR *||Panama||Jamaica *||Zambia|
|India *||OTHER||Jordan *||Zimbabwe *|
|Indonesia *||Albania *||Kenya *|
|Korea *||Algeria *||Lesotho|
|PPP GDP per capita||Heston and others (2011)|
|Investment (in PPP terms)||Heston and others (2011)|
|Educational attainment||Barro and Lee (2010); Cohen and Soto (2007) for countries not contained in Barro and Lee|
|Inflation (consumer price index)||IMF, International Financial Statistics and World Economic Outlook databases|
|Total population and working-age population||United Nations, World Population Prospects|
|Financial system index and subcomponents||Authors’ calculations based on detailed data in Abiad and others (2010)|
|External transactions index and subcomponents||Authors’ calculations based on detailed data in Spilimbergo and others (2009)|
|Product markets index and subcomponents||Authors’ calculations based on detailed data in Spilimbergo and others (2009)|
This note uses the term Central America to refer to the group of countries comprising Costa Rica, the Dominican Republic, El Salvador, Guatemala, Honduras, Nicaragua, and Panama.
Figures 1 and 2 only include countries for which data are available in both periods. Advanced economies are defined as countries that were OECD members by 1975. The countries included in each region are listed in Table A.1 in the Appendix.
The level of employment would preferably be used instead of the working-age share of the population, but this would significantly restrict the sample of available data.
This variable, which is the sum of secondary and tertiary schooling, performed better in regressions than total or primary schooling.
The structural efficiency data has been described in detail in Spilimbergo and others (2009) and Abiad and others (2010). The structural indexes generally begin after 1960, so the series are extended back by setting values for periods where data do not exist equal to the value in the first period for which data is available. Similarly, the indexes generally end before 2009, so the value for the 2005–09 periods is an average over the years for which data is available.
Spilimbergo and others (2009) note that the indexes do not solely capture liberalization, in that components like banking supervision measure the degree to which phenomenon like market failures are addressed. The unifying theme is the efficient allocation of resources; hence, the use of the term efficiency in this paper.
Countries included in the analysis are shown with an asterisk in Table A.1 in the Appendix. Panama is not included because the structural reforms database covers its external transactions but not financial sector or product market reforms, and no close proxy for these was found.
The aggregate financial system indexes for Honduras and Trinidad and Tobago were constructed from indexes calculated by Lora (2001) and Escaith and Paunovic (2004). These indexes contain series that are similar to the subcomponents of the aggregate index used here, but differences in definition prevented the construction of the subcomponents in this index.
Running regressions including only one region at a time is not feasible given the degrees of freedom in the sample and the computational demands of System GMM, which requires a large cross-sectional dimension.
Natural logs of variables are taken in accordance with the regression specification (see Table 1).
The investment-to-GDP ratio in Panama has risen substantially since 2008, associated in large part with the expansion of the Panama Canal. Thus, the 2005–09 average may overstate the potential to raise growth through higher investment.