Endogenous TFP and cross-country income differences

Using a class of endogenous growth models that exhibit international spillovers, we show that most of the cross-country differences in output per worker are explained by barriers to the accumulation of rival factors (physical and human capital) rather than by barriers to the accumulation of knowledge. This is shown theoretically, by comparing models with exogenous and endogenous TFP, and quantitatively by using a carefully calibrated version of the model. The main finding is that barriers to the accumulation of physical and human capital explain up to 64% of income gaps relative to the US.     

Agriculture and aggregate productivity: A quantitative cross-country analysis

A decomposition of aggregate labor productivity based on internationally comparable data reveals that a high share of employment and low labor productivity in agriculture are mainly responsible for low aggregate productivity in poor countries. Using a two-sector general-equilibrium model, we show that differences in economy-wide productivity, barriers to modern intermediate inputs in agriculture, and barriers in the labor market generate large cross-country differences in the share of employment and labor productivity in agriculture. The model implies a factor difference of 10.8 in aggregate labor productivity between the richest and the poorest 5% of the countries in the world, leaving the unexplained factor at 3.2. Overall, this two-sector framework performs much better than a single-sector growth model in explaining observed differences in international productivity.     

Accounting for development through investment prices

Cross-country income gaps are large in the data. Can observed investment prices account for these gaps? Our model adds an extensive margin to the neoclassical growth model by allowing for entry of firms. When combined with a “returns to variety” effect, our model provides an amplification mechanism from investment prices to output. Using cross-country data on relative investment prices, the model can explain up to 5 to 6-fold income differences between the richest and poorest countries in our sample while simultaneously reducing the implied cross-country TFP differences.     

Globalization, returns to accumulation and the world distribution of output

This paper examines the extent to which the process of globalization can explain the observed widening in the cross-country distribution of output-per-worker. On the theoretical front the model highlights why, when the labor market is subject to a holdup problem, the opening up of trade will cause an increase in the dispersion of income across countries similar to that observed in the data. The increase in dispersion in the model arises due to the emergence of a discrepancy between the private and social returns to capital accumulation that favors capital abundant countries. On the empirical front, we document the relevance of the model by examining whether growth patterns, decomposition exercises and specialization patterns support the model's predictions. Overall we find that over 50% of the recently observed increase in income dispersion across countries can be accounted for by the mechanism exemplified by the model.     

Current account adjustment in industrial countries

This paper examines the dynamics of current account adjustment among industrial countries. The purpose is to evaluate whether there is a threshold level of a current account deficit at which it becomes unsustainable and whether it is possible to characterize episodes of adjustment. We identify 25 episodes in which there was a sustained improvement in the current account following a large deficit between 1980 and 1997. We find that a typical current account reversal begins when the current account deficit is about 5% of GDP. However, we also find considerable cross-country variation in the reversal threshold, consistent with a stock-adjustment model of current account sustainability. Reversals are associated with slowing income growth and a 10–20% real exchange rate depreciation. Real export growth, declining investment, and an eventual leveling off in the budget deficit–GDP ratio are also likely to be part of the adjustment. These results imply that current account reversals in industrialized countries are related to the business cycle.     

Nobody's business but my own: Self-employment and small enterprise in economic development

In most poor countries, small firms and self-employment are the dominant forms of business enterprise—even in the manufacturing sector. For rich countries, in contrast, self-employed people account for very small shares of manufacturing employment and output. This paper builds on Lucas [1978. On the size distribution of business firms. Bell Journal of Economics 9(2), 508-523] to ask whether structural changes of this kind are driven by productivity differences. A model, calibrated to Japanese time-series data, is shown to mimic key features of cross-country and time-series data. The results support the idea that changes in aggregate productivity account for much of the cross-country variation in establishment size and self-employment rates.     

Is current institutional quality linked to legal origins and disease endowments? Evidence from Africa

This paper empirically assesses if and to what extent cross-country differences in institutions inherited from the past affect current institutional quality in Africa. Specifically, the work evaluates if legal origins and disease endowments explain cross-country differences in the quality of contemporary institutions that are widely considered to be important for financial system development and other economic outcomes, such as those related to creditor rights protection and the credit information infrastructure, as well as the judicial, legal property and insolvency systems. Empirical tests are carried out on a sample of 46 African former European colonies with data on current institutional quality from 2004 to 2013. The findings reveal that the legal origins hypothesis receives strong support in the data: historical factors, rooted in legal origins, have long-lasting effects on current institutional quality in the African context. Mixed evidence is instead found for the endowment view.     

Importing technology

We look at disaggregated imports of various types of equipment to make inferences on cross-country differences in the composition of equipment investment. We make three contributions. First, we document strikingly large differences in investment composition. Second, we explain the differences as being based on each equipment type's degree of complementarity with other factors whose abundance differs across countries. Third, we show that the composition of capital has the potential to account for some of the large observed differences in TFP across countries.     

Former Soviet Union as the World champion in cheapness

The paper assesses the relationship between income and price levels in the Former Soviet Union (FSU) republics relative to remaining countries during the period 1991–2000. The basic idea of the paper is that the price levels of FSU republics were in the 1990s remarkably lower not only vis-à-vis the non-transitional economies with income levels similar to those of the FSU republics but also vis-à-vis non-FSU transitional countries. The author finds out the cross-country relationship between income and price levels among non-transitional economies and derives from this equation the income-predicted price levels for the FSU republics both at the very beginning, in the middle and at the end of the 1990s. Based on his calculations, the author assesses the differences between the FSU republics’ income-predicted and actual price levels and compares the results with those of the non-FSU transitional countries.     

Growth, Income Inequality, and Fiscal Policy: What Are the Relevant Trade-offs?

We develop an endogenous growth model with elastic labor supply, in which agents differ in their initial endowments of physical capital. In this context, the growth rate and the distribution of income are jointly determined. We then examine the distributional impact of different ways of financing an investment subsidy. Policies aimed at increasing the growth rate result in a more unequal distribution of pre-tax income, consistent with the positive correlation between income inequality and growth observed in the recent empirical literature. However, there is no conflict between efficiency and equity if inequality is measured in terms of the distribution of welfare.     

A quantitative analysis of inflation as a tax on the underground economy

Inflation rates are more dispersed and are persistently higher in developing countries. This paper quantifies the importance of the public-finance motive for inflation in the presence of a tax-evading sector, the underground economy. The approach is motivated by the observation that the underground economy is especially large in poor countries. The analysis builds on a general equilibrium monetary model with two production sectors, where income in one of the sectors cannot be taxed. A benevolent government finances its budget using an optimal combination of the income tax rate and the inflation rate. The model is first calibrated to the U.S. economy and is then used for a cross-country simulation. The resulting relationships between the size of an underground economy, inflation rate, income tax rate and the share of seigniorage in the government revenue rationalize the cross-country data quantitatively well.     

Structural change, Engel's consumption cycles and Kaldor's facts of economic growth

Non-linear Engel-curves for consumer goods cause continuous structural change. Goods are sequentially introduced starting out as a luxury with high income elasticity and ending up as a necessity with low income elasticity. Although this leads to rising and falling sectoral employment shares, the model exhibits a steady growth path along which the Kaldor facts are satisfied. Extending the basic model to the case of endogenous product innovations shows that complementarities between aggregate and sectoral growth may give rise to multiple equilibria.     

Current accounts in the euro area: An intertemporal approach

Current accounts have diverged substantially among euro area countries since the creation of the euro. This divergence has raised concerns about the sustainability of some member countries’ external indebtedness. This paper uses an intertemporal model of the current account to analyze the fluctuations in current account balances experienced by euro area countries over the last three decades and to disentangle its determinants. We find that the model is not rejected for six of the ten euro area countries examined (Belgium, France, Italy, Netherlands, Portugal and Spain), although it tends to underestimate their current account volatility. For these countries, we derive the expectations about future income and relative prices, which, according to the model, underlie their current account balances. Expectations about future growth increased in all Southern European countries at the creation of the euro, but they diverged considerably by 2005. While in Portugal these expectations were below its historical mean by then, in Spain they were at an historical high.     

新所得税准则对上市公司盈利能力影响分析

新所得税准则要求企业运用资产负债表债务法进行所得税核算。资产负债表债务法通过比较资产负债的计税基础计算出应纳税暂时性差异和可抵扣暂时性差异,进而确认当期递延所得税,调整当期的所得税费用,所得税费用的调整会影响企业当期的净利润,进而影响股东的每股收益。因此,暂时性差异会影响企业的盈利能力。本文采用统计分析方法,分析新所得税准则对上市公司盈利能力的影响。     

Neither a borrower nor a lender: Does China's zero net foreign asset position make economic sense?

China in the past few years has emerged as a net foreign creditor on the international scene with net foreign assets (NFAs) slightly greater than 0% of wealth. This is surprising given that China is a relatively poor country with a capital-labor ratio about one-fifth the world average and one-tenth the US level. We ask whether it makes economic sense for China to be a net creditor and what China's NFA position might be in 20 years. We calibrate a theoretical model of international capital flows featuring diminishing returns, production risk, and sovereign risk. Our calibrations for China yield a predicted NFA position of −17% of China's wealth. We also estimate non-structural cross-country regressions of determinants of NFAs in which China is always a significant outlier with around 9% points more of NFAs relative to wealth than is predicted by its characteristics. We speculate that a variety of domestic distortions account for these deviations from the theory and cross-country empirics. We calibrate and predict different—and necessarily speculative—scenarios out to 2025, assuming that China's NFA position eventually conforms with the theoretical and cross-country regularities. Our scenarios suggest a future negative NFA position between 3% and 9% of wealth. Starting from China's zero NFA position, it would take current account deficits in the range of 2-5% of GDP to reach any of these future NFA positions. These are not unreasonable deficits, but they would require a large adjustment from the present 6% of GDP current account surplus.     

The impact of non-traditional activities on the estimation of bank efficiency: International evidence

This paper investigates the relevance of non-traditional activities in the estimation of bank efficiency levels using a sample of 752 publicly quoted commercial banks from 87 countries around the world, allowing comparison of the impact of such activities under different levels of economic development, geographical regions and other country characteristics. We estimate both cost and profit efficiency of banks using a traditional function that considers loans and other earnings assets as the only outputs, and two additional functions to account for non-traditional activities, one with off-balance sheet (OBS) items and the other with non-interest income as an additional output. Controlling for cross-country differences in regulatory and environmental conditions, we find that, on average, cost efficiency increases irrespective of whether we use OBS or non-interest income, although the results for profit efficiency are mixed. Our results also reveal that while the inclusion of non-traditional outputs does not alter the directional impact of environmental variables on bank inefficiency, regulations that restrict bank activities and enhance monitoring and supervision provisions improve both cost and profit efficiency.     

The Role of Total Factor Productivity Growth in Middle-Income Countries

We examine the importance of total factor productivity (TFP) growth in middle-income countries (MICs) based on cross-country panel data for the period of 1975–2014. We find that TFP growth contributed significantly to a country’s upward transition from middle-income to high-income country group. The TFP growth model reveals that the catch-up effect, human capital, smaller population, weak currency, and research and development growth are significant sources of TFP growth. We do not find a systematic difference in the TFP growth models for MICs. In analyzing the role of factors influencing TFP growth at different income stages, strengthening innovative activities and building innovative capacities are important in overcoming the challenges that MICs face when transitioning to the high-income group. Governments of upper MICs need to initiate reform to motivate innovation by optimizing national R&D systems, and redesigning the educational system to target promoting innovation.     

The effect of financial repression and enforcement on entrepreneurship and economic development

A general equilibrium model with heterogeneous agents (with respect to wealth and ability) shows that differences across countries in intermediation costs and enforcement generate differences in occupational choice, firm size, credit, output and income inequality. Counterfactual experiments are performed for Latin American, European, transition and high growth Asian countries, with empirical estimates of each country's financial frictions and United States values for all other parameters. The results isolate the quantitative effect of these financial frictions in explaining the performance gap between each country and the United States, and depend critically on whether a general equilibrium factor price effect is operative.     

International Pricing in a Generalized Model of Ideal Variety

We examine international markups and pricing in a generalized version of an "ideal variety" model. In this model, entry causes crowding in variety space, so that the marginal utility of new varieties falls as market size grows. Crowding is partially offset by income effects, as richer consumers will pay more for varieties closer matched to their ideal types. We show theoretically and confirm empirically that declining marginal utility of new varieties results in: a higher own-price elasticity of demand (and lower prices) in large countries and a lower own-price elasticity of demand (and higher prices) in rich countries. The model is also useful for generating facts from the literature regarding cross-country differences in the rate of variety expansion.