Trade, product cycles, and inequality within and between countries

Abstract.  This paper incorporates Northern product innovation and product‐cycle‐driven technology transfer into the continuum‐of‐goods Heckscher‐Ohlin model. The creation of very skill‐intensive goods induces the North to transfer production of older, less skill‐intensive goods to the South. These relocated goods are the most skill intensive by Southern standards. Hence, product cycles raise the relative demand for skilled workers and thus wage inequality within both regions. This runs contrary to the Stolper‐Samuelson theorem, but accords well with the fact that wage inequality has risen in both Northern and Southern countries. Moreover, product cycles increase income inequality between countries. JEL classification: F1     

What drives the cross‐country growth and inequality correlation?

Abstract.  We present a neo‐classical model that explores the determinants of growth‐inequality correlation and attempts to reconcile the seemingly conflicting evidence on the nature of the growth‐inequality relationship. The initial distribution of human capital determines the long‐run income distribution and the growth rate by influencing the occupational choice of the agents. The steady‐state proportion of adults that innovates and updates human capital is path dependent. The output elasticity of skilled‐labour, barriers to knowledge spillovers, and the degree of redistribution determine the range of steady‐state equilibria. From a calibration experiment we report that a skill‐intensive technology, low barriers to knowledge spillovers, and high degrees of redistribution characterize the industrial countries with a positive growth‐inequality correlation. A negative correlation between growth and inequality arises for the group of non‐industrial countries with the opposite characteristics. JEL classification: E1, O4     

Inequality and trade

Abstract.  We incorporate demand‐side considerations in trade in a systematic but straightforward way. We do so by focusing on the role of inequality in the determination of trade flows and patterns. With non‐homothetic preferences, when countries are similar in all respects but asset inequality, we find that trade is driven by specialization in consumption , not production. Besides, these assumptions allow us to generate some interesting international spillover effects of redistributive policies. Finally, we study a model of monopolistic competition and find a novel V‐shaped relationship between the ratio of inter‐industry to intra‐industry trade and a country's inequality. JEL classification: F11, F12     

Inequality and Growth in a Panel of Countries

Evidence from a broad panel of countries shows little overall relation between income inequality and rates of growth and investment. For growth, higher inequality tends to retard growth in poor countries and encourage growth in richer places. The Kuznets curve—whereby inequality first increases and later decreases during the process of economic development—emerges as a clear empirical regularity. However, this relation does not explain the bulk of variations in inequality across countries or over time.     

Does S. Kuznets's belief question the Environmental Kuznets Curves?

Abstract.  This paper examines the link between pollution and income. The main purpose is to assess whether the introduction of income inequality in a Environmental Kuznets Curve (EKC) analysis can give new insights into the relationship between pollution and economic growth. The EKC hypothesis proposes that there is an inverted U‐shape relation between environmental degradation and income per capita. We question this common result, in a simple model where the income inequality evolution is exogenous and where the planner could use only one instrument. For a set of parameter values we find, for example, a two‐hump curve. JEL classification: D3, H4, Q2.     

TOP INCOMES AND NATIONAL SAVINGS

The relationship between income inequality and national savings is theoretically ambiguous, and past empirical studies have delivered mixed results. We revisit the question using a newly available source of data on inequality: the income share of the richest 10 percent and the richest 1 percent. Combining this with historical data on national savings rates, we are able to investigate the relationship for 11 developed countries over the period 1921–2002. We find no consistent relationship between lagged top income shares and current savings rates, and our standard errors are small enough that we are able to reject more than modest effects in either direction. We view this as suggesting that inequality at the top end of the distribution is not a major driver of national savings rates.     

Gradual globalization and inequality between and within countries

Abstract.  This paper investigates the effects of gradual trade liberalization on intra‐country and inter‐country inequality. It assumes two countries, North and South, and two factors, skilled labour and unskilled labour. North is defined as the one that is relatively skilled‐labour abundant and larger. A marginal trade liberalization from autarky is shown to (a) increase (decrease) in skilled‐unskilled wage differential in the North (South) and (b) raise the inequality between North and South. As the global economy approaches free trade, a marginal trade liberalization has effects, which are the opposite of (a) and (b); that is, the relative wage falls in the North and rises in the South, and North‐South inequality decreases.     

Sex, equality, and growth

Abstract.  We set up a model of economic and demographic long‐run development, where inequality in income and reproductive success (polygynous mating) plays a central role. The model generates a slow and gradual compression of the income gap between landholders and landless, together with rising levels of human capital. This process spurts at some stage, as society endogenously transits into sustained growth. Simultaneously, inequality in income and reproductive success drops; society becomes monogamous.     

Income Inequality and Income Mobility in the Scandinavian Countries Compared to the United States

This paper compares income inequality and income mobility in the Scandinavian countries and the United States during 1980–90. The results suggest that inequality is greater in the United States than in the Scandinavian countries and that this inequality ranking of countries remains unchanged when the accounting period of income is extended from one to eleven years. The pattern of mobility turns out to be remarkably similar, in the sense that the proportionate reduction in inequality from extending the accounting period of income is much the same. But we do find evidence of greater dispersion of first differences of relative earnings and income in the United States. Relative income changes are associated with changes in labor market and marital status in all four countries, but the magnitude of such changes are largest in the United States.     

Growth, income distribution and well-being in transition countries

We apply several well-being measures that combine average income with a measure of inequality to international and intertemporal comparisons of well-being in transition countries. Our well-being measures drastically change the impression of levels and changes in well-being compared to a traditional reliance on income measures. Due to low inequality and moderate income levels, socialist countries enjoyed relatively high levels of economic well-being. In the transition process, rising inequality and falling incomes have led to a dramatic absolute decline in well-being and a considerable drop in relative well-being vis-à-vis non-transition countries. We also find a close correlation between income losses and inequality increases. While the transition has been successful in expanding political and civil rights, our indicators suggest that most transition countries are still below the level of economic well-being of the late 1980s.
JEL classification: D6, O15, P27.     

Calculation and decomposition of income inequality in low- and middle-income countries: a survey data analysis

This article estimates income inequality in a sample of four low- and middle-income (LMI) countries namely; Albania, Nepal, Tajikistan and Tanzania using the household survey data – Nepal Living Standard Measurement Survey Second. First, we estimate the income generation function for each country and calculate the income inequality using Gini index (GI). Second, we decompose the income Gini into the determinants of income generation functions. Based on the decomposition result, socio-economic factors are the most important determinants of income inequality followed by geographic factors. Demographic factors have the least effect on income inequality in all four countries. Third, we propose a new method to quantify the effect of change in each covariate of income generation function on income Gini. That allows us to quantify the effects of change in specific policy such as increase in investment in schooling or public health to specific group of the population in society on income inequality. A carefully chosen, integrated policy can significantly reduce inequality in all four countries under study.     

Africa is on time

We present evidence that the recent African growth renaissance has reached Africa’s poor. Using survey data on African income distributions and national accounts GDP, we estimate income distributions, poverty rates, and inequality indices for African countries for the period 1990–2011. We show that: (1) African poverty is falling rapidly; (2) the African countries for which good inequality data exists are set to reach the Millennium Development Goal (MDG) poverty target on time. The entire continent except for the Democratic Republic of Congo (DRC) will reach the MDG in 2014, one year in advance, and adding the DRC will delay the MDG until 2018; (3) the growth spurt that began in 1995, if anything, decreased African income inequality instead of increasing it; (4) African poverty reduction is remarkably general: it cannot be explained by a large country, or even by a single set of countries possessing some beneficial geographical or historical characteristic. All classes of countries, including those with disadvantageous geography and history, experience reductions in poverty. In particular, poverty fell for both landlocked as well as coastal countries; for mineral-rich as well as mineral-poor countries; for countries with favorable or with unfavorable agriculture; for countries regardless of colonial origin; and for countries with below- or above-median slave exports per capita during the African slave trade.     

Income, income inequality, and health: Evidence from China

This paper tests using survey data from China whether individual health is associated with income and community-level income inequality. Although poor health and high inequality are key features of many developing countries, most of the earlier literature has drawn on data from developed countries in studying the association between the two. We find that self-reported health status increases with per capita income, but at a decreasing rate. Controlling for per capita income, we find an inverted-U association between self-reported health status and income inequality, which suggests that high inequality in a community poses threats to health. We also find that high inequality increases the probability of health-compromising behavior such as smoking and alcohol consumption. Most of our findings are robust to different measures of health status and income inequality. Journal of Comparative Economics 34 (4) (2006) 668–693.     

Capitalist systems and income inequality

The paper investigates the relationship between compositional inequality (how the shares of capital and labor income vary along income distribution) and inter-personal income inequality. Using a new methodology and data from 47 countries covering the period 1995–2018, we show that higher compositional inequality is associated with higher inter-personal inequality. This is clearly shown by Latin American countries and India. Nordic countries are exceptional because they combine high compositional inequality with low inter-personal inequality. Their exceptionalism is attenuated when pension income received from largely government-mandated accumulated savings is added to capital income. The analysis shows the theoretical possibility of societies where low compositional inequality may be combined with high income inequality. Currently, China and the United States come closest to that position.     

Not by growth alone: The role of the distribution of income in regional diversity in poverty reduction

This study examines the role of the distribution of income in determining the responsiveness of poverty to income growth and changes in income inequality using panel data of 58 developing countries for the period 1980-1998. We show that the large cross-regional variation in the capacity of income growth to reduce poverty, i.e. the income elasticity, is largely explained by differences in the initial distribution of income and present region and time specific estimates of the income and Gini elasticities of poverty. We find that the income elasticity of poverty in the mid-1990s equals −1.31 on average and ranges from −0.71 for Sub-Saharan Africa to −2.27 for the Middle East and North Africa, and that the Gini elasticity of poverty equals 0.80 on average and ranges from 0.01 in South Asia to 1.73 in Latin America. Furthermore we show that while differing income growth rates account for most of the regional diversity in poverty trends, the additional impact of differences across regions in rates of inequality change and income and inequality elasticities of poverty is almost always significant and far too large to be ignored, most notably so in Eastern Europe and Central Asia.     

Income inequality and credit expansion in post-communist countries

There is an on-going debate on the antecedents and consequences of income inequality. Recent studies find that income inequality was a cause of the recent financial crisis. However, the findings on the inequality–indebtedness relationship are mixed and based on analyses of developed countries. The aim of this research is to test how income inequality influences borrowing in post-communist countries, whose financial markets are not very developed, which has important implications for income inequality. Therefore, we include financial system development in the analysis. We base our analysis on state-level panel data and find that income inequality will increase indebtedness in the private sector. However, these results are model and region specific. To preclude higher income inequality and the emergence of a financial crisis, policies should be directed towards improving the role of financial intermediaries and stock markets.     

Possibility of a Middle Income Trap in China： Assessment in Terms of the Literature on Innovation,Big Business and Inequality

This paper discusses the possibility of China falling into the so-called middle income trap in terms of three checkpoints： innovation capability, world-class big businesses, and inequality. Based on these criteria, our conclusions are as follows： First, China has increasingly become innovative and thus differs from other middle income countries. Second, China has many successful big businesses, a number disproportionate to its size. Thus, China differs from other middle income countries with few world-class big businesses, and the only qualification is that those big businesses are mostly non- manufacturing firms focused on such areas as finance, energy, and trading. Third, China faces great uncertainty in terms of inequality. Although several signs show that the Kuznets curve will come to represent China, as noted by the gradual reduction of surplus labor and rising wage rates starting in the coastal provinces, the Chinese are now facing new sources of inequality in China, such as wealth （including financial and real estate assets） and non-economic factors （including corruption）.     

Can Income Inequality be Affected by the Interaction Between ICTs and Human Capital?: The Evidence from Developing Countries

Income inequality in developing countries remains a major concern. It has been established that higher inequality makes a greater proportion of the population vulnerable to poverty. This paper aimed to analyse the effect of the interaction between ICTs and human capital on income inequality in developing countries. Covering 89 developing countries for the period 2000 to 2015 and based on panel fixed effects instrumental variables technique, this study finds that the interaction between ICTs and human capital reduces overall income inequality on the one hand, and on the other, leads to an increase in the income shares of the poorest, and in particular relative to the richest in developing countries. Furthermore, the interaction between ICTs and human capital reinforces the impact of ICTs on income inequality in developing countries. These results suggest that prioritizing the acquisition of human capital by the poorest, as well as promoting access to and use of ICTs for the benefit of the poorest would significantly contribute to reduce overall income inequality and increase income shares of the poorest in developing countries.

     

Inequality Stagnation in Latin America in the Aftermath of the Global Financial Crisis

Between 2003 and 2010, Latin America experienced a solid record of economic growth, coupled with a notable reduction in income inequality. The regional Gini coefficient fell from 0.556 to 0.521 and declined in all 15 out of 17 countries in which frequent data are available. However, previous studies have warned about problems in the sustainability of the decline in income inequality and this study presents evidence of stagnation on this front between 2010 and 2013. The results are robust to various measures of income inequality, but differ across the region. While largely attributable to the recovery from the global financial crisis in Mexico and some countries in Central America, the results are also supported by the demonstrated slowdown in inequality reduction in other countries, including Brazil, Ecuador and Bolivia.     

European Integration and Inequality among Countries: A Lifecycle Income Analysis

This paper analyzes the effects of the enlargements of the European Union on inequality using an approach based on individuals' lifecycle incomes. This allows one to consider the effect of different rates of growth and survival rates. Inequality in terms of permanent income was substantially less than in current per capita income at the time of all the enlargements except those of the last 10 years. The results point to the key role of policies that stimulate growth in the less developed countries. With an annual β‐convergence of 2% in current income, inequality in permanent income would be less than one third of what it is now.