Education bias of trade liberalization and wage inequality in developing countries

The aim of this article is to examine the impact of increased trade on wage inequality in developing countries, and whether a higher human capital stock moderates this effect. We look at the skilled–unskilled wage differential. When better educated societies open up their economies, increased trade is likely to induce less inequality on impact because the supply of skills better matches demand. But greater international exposure also brings about technological diffusion, further raising skilled labour demand. This may raise wage inequality, in contrast to the initial egalitarian level effect of human capital. We attempt to measure these two opposing forces. We also employ a broad set of indicators to measure trade liberalization policies as well as general openness, which is an outcome, and not a policy variable. We further examine what type of education most reduces inequality. Our findings suggest that countries with a higher level of initial human capital do well on the inequality front, but human capital which accrues through the trade liberalization channel has inegalitarian effects. Our results also have implications for the speed at which trade policies are liberalized, the implication being that better educated nations should liberalize faster.     

Mind the Gender Wage Gap – the Impact of Trade and Competition on Sectoral Wage Differences

This paper examines differences between women’s and men’s wages in 18 selected OECD countries in the period 1970 to 2005. The study is based on 12 manufacturing sector‐ and skill‐specific sets of panel data on the gender wage gap. We apply a system generalised method of moments (GMM) estimator to the extended version of the conditional gender wage gap convergence equation, controlling for sector concentration and industry‐specific measures of openness using a difference‐in‐difference approach: trade‐affected concentrated sectors versus trade‐affected competitive sectors. The results indicate that: (i) an increase in sector concentration is associated with wage gap growth; (ii) both import and export penetration are associated with a reduction of the high‐skill gender wage gap growth in concentrated industries; (iii) there is evidence of a widening impact of trade on the medium and low‐skill occupational gender wage gap growth in less competitive industries; (iv) institutional regulations of the labour market have an impact on the development of the gender wage gap: for highly‐skilled labour an increase in labour market regulation raises the growth of the gender wage gap, while for medium‐ and low‐skilled workers, it lowers it.     

对外开放与中国制造业工资差距——基于劳动力供需模型的实证检验

选取1998—2006年中国26个省市的面板数据,利用结合劳动力供需的对外开放影响工资差距的理论模型,就对外开放对制造业熟练和非熟练工人工资差距的影响进行实证研究。研究发现:从全国样本看,外商直接投资有利于缩小制造业熟练与非熟练工人工资差距,而贸易开放与制造业熟练和非熟练工人工资差距则是一种倒"U"型的关系。在分地区讨论时,发现外商直接投资对中西部地区制造业熟练与非熟练工人工资差距的缩小作用要大于东部地区,贸易开放对中西部地区制造业熟练与非熟练工人工资差距存在显著的正向影响,而对东部地区的影响不显著,这进一步验证了上述倒"U"型关系的实证结果。     

Globalisation and Corruption,Revisited

This paper presents new empirical evidence on the determinants of corruption, focussing on the role of globalisation and inequality. The estimates for a panel of 102 countries over the period 1995–2005 point to three main results: (i) Detection technologies, reflected in a high level of development, human capital and political rights reduce corruption, whereas natural resource rents increase corruption; (ii) Globalisation (in terms of both trade and financial openness) has a negative effect on corruption, which is more pronounced in developing countries; (iii) Inequality increases corruption, and once the role of inequality is accounted for, the impact of globalisation on corruption is halved. In line with recent theory, this suggests that globalisation – besides reducing corruption through enhanced competition – affects corruption also by reducing inequality.     

Skill classification does matter: estimating the relationship between trade flows and wage inequality

Empirical work must pay careful attention to how it measures the relative skill abundance of countries and the relative skill intensity embodied in trade flows. This paper compiles a new data set, using income levels, average education, manufacturing wages, and an index of these three variables, to classify countries and trade flows as relatively high skill or low skill. Then, in order to show the importance of skill classification, it uses a reduced-form fixed-effects model to estimate the relationship between trade flows and wage inequality. This specification not only controls for any time-invariant omitted variables, but also permits the inclusion of a large number of diverse countries. When more accurate skill rankings are utilized, results suggest that, in high-skill abundant countries, increased trade with lower-skill countries is correlated with an increase in wage inequality. This relationship is significant and highly robust and is driven by the negative relationship between trade and low-skill wages (instead of a positive relationship between trade and high-skill wages.) Results, however, are highly dependent on the skill classification utilized.     

Robustness of the KOF index of economic globalisation

The KOF indices of globalisation are the most used globalisation measures in international economics literature, but it uses the nominal trade openness measure to construct the globalisation index. In this paper, we use real trade openness instead of nominal trade openness and recalculate the KOF economic globalisation index over the period 1970–2013. Using the panel data regressions for 146 countries, we revisit the economic globalisation–economic growth nexus to investigate the robustness of the KOF economic globalisation index. We consider several possibilities in model specifications, and the results show that using nominal trade openness measure in calculating the KOF globalisation index is statistically robust. In addition, the KOF economic globalisation index in logarithmic form introduces a more robust outlook in the panel data regressions—a lower bias is emerged by considering different trade openness measures to calculate the globalisation level.     

The endogenous skill bias of technical change and wage inequality in developing countries

This paper draws on existing empirical literature and an original theoretical model to argue that technical change does not have to be skill-biased in developing countries. Instead, the extent to which technology adoption in developing countries favors skilled workers depends on a number of factors. Free trade induces technology that favors skilled workers in skill-abundant developing countries and that favors unskilled workers in skill-scarce developing countries, and therefore amplifies the predicted wage effects of trade liberalization. Developing countries experience technical change that is skill-biased when imported skill-biased technologies become relatively cheaper. Increased skill supply further biases technical change in favor of skilled labor. These features aid our understanding of the observed rises in inequality within developing countries, the absence of a significant downward effect of expanded educational attainment on skill premia, and the differential effects of trade liberalization on inequality.     

Does Foreign Direct Investment Affect Wage Inequality? An Empirical Investigation

We use a panel of more than 100 countries for the period 1980–2002 to analyse the relationship between inward foreign direct investment (FDI) and wage inequality. We particularly check whether this relationship is nonlinear, in line with a theoretical discussion. We find that the effect of FDI differs according to the level of development: we depict two different patterns, one for OECD (developed) and one for non‐OECD (developing) countries. Results suggest the presence of a nonlinear effect in developing countries: wage inequality increases with FDI inward stock, with such effect diminishing with further increases in FDI. For developed countries, wage inequality decreases with FDI inward stock, and there is no robust evidence to show that this effect is nonlinear.     

Who Supports Free Trade in Latin America?

This paper examines individual trade policy preferences across 17 countries in Latin America. The focus is on whether skilled or unskilled workers are more likely to support liberalised trade and on whether country characteristics, such as factor endowments, alter the preferences of skilled and unskilled workers. Based on the standard Heckscher‐Ohlin model and the Stolper‐Samuelson theorem, wage inequality in developing countries will decrease under free trade and unskilled workers will benefit. We find that on average skilled workers are more likely than unskilled workers to support free trade in Latin American countries. Separate country regressions reveal that this pattern is only statistically significant in 8 out of 17 Latin American countries. However, there are no countries in our sample in which unskilled workers are statistically more likely to support free trade than skilled workers, not even in the lowest skill‐endowed country in the sample. We also find that people from Latin American countries with higher GDP, faster growth, more cropland and a longer period of time since reform were more likely on average to support free trade.     

Preference heterogeneity, wage inequality, and trade

We consider individuals who value product variety, and who can be skilled or unskilled as workers. Skilled people prefer to consume skill-intensive goods. We show that under plausible conditions an increase in the relative size of the skilled population increases the relative wage of skilled workers, thereby increasing wage inequality. In our two-country model of trade, an increase in the relative supply of skilled labor in either country increases the relative wage of skilled workers, and hence increases inequality in both countries.     

Reconciling globalisation and technological change: Growing income inequalities and remedial policies

Since the mid-1970s wage inequality has increased sharply in OECD countries. Among the factors singled out by economists as possible major contributors to this development are economic globalisation processes and skill-biased technological change. Although these are most commonly considered as independent influences, the present authors argue, after critically outlining views about these factors, that strong interdependence exists between them. The article then examines potential policy responses to this growing inequality.     

Globalisation and Obesity

The WHO has recently announced the global obesity epidemic. An economic model is developed in which globalisation factors generate health externalities and contribute to global obesity growth. The unbalanced panel data set contains the information for 79 countries over the period 1986–2008. Fixed‐effects panel data estimation and quantile regression analysis were used to analyse the data. The fixed‐effects panel model results indicate that the impact of trade openness and the globalisation social index (GSI) on global obesity rates is positive and significant, which is consistent with prior expectations, while surprisingly the foreign direct investments (FDI) has no impact on global obesity. While these results are interesting, they are hiding the effect of globalisation processes across the conditional distribution of the obesity variable. The use of quantile regression uncovered that the impact of the FDI and the GSI on low and average quantiles (low and average obesity rates in our sample) is positive and significant, while high quantiles are not affected. Since low and average quantiles (low and average obesity rates) are representative of the less‐ and medium‐developed countries, this result implies that social globalisation and FDI adversely impact obesity in less‐to‐medium developed countries. Trade openness generally has no impact on changes in obesity rates across quantiles.     

Income Inequalities and International Trade in Goods and Services: Short- and Long-Run Evidence

In this article, we study the short- and long-run effects of trade openness in services on wage inequalities. The sample covers ten Organization for Economic Cooperation and Development (OECD) countries from 1980 to 2005. We find a differentiated impact of trade in goods compared to trade in services: while trade in goods has a short- and a long-run impact on inequalities, trade in services has only long-run effects. Moreover, we also find that international trade in services has a stronger impact on inequalities than international trade in goods, and this effect does not concern only inequalities between top incomes and low incomes but also between top incomes and median incomes.     

Top income shares in OECD countries: The role of government ideology and globalisation

This paper investigates how government ideology and globalisation are associated with top income shares in 17 OECD countries over the period 1970 to 2014. We use top income shares of the World Wealth and Income Database (WID ). Globalisation is measured by the KOF index of globalisation. Static and dynamic panel model results show that the top income shares increased more under right wing governments than under left wing governments. The ideology‐induced effect was stronger when globalisation proceeded more rapidly. Globalisation was positively correlated with income shares of the upper‐middle class (P99–P90), but negatively with income shares of the rich (top 1%) in the overall sample. We show that the relationship differs between Anglo‐Saxon countries and other OECD countries. Globalisation was more pro‐rich in Anglo‐Saxon countries than in other OECD countries. Government ideology does not turn out to have a statistically significant effect on top income shares in Anglo‐Saxon countries after the 1980s, whereas ideology‐induced differences in the distributional outcomes continued in other OECD countries.     

Informality,tariffs and wealth

This article analyzes the interaction between changes in tariff protection, informality, inequality and aggregate income. First, we describe some new empirical evidence on informality, the formal/informal wage gap and trade openness in Latin American countries. Then we present a simple model characterized by three (empirically based) assumptions: (1) agents consume both formal and informal goods; (2) the government uses tariff revenues to purchase formal goods; (3) informality is a voluntary phenomenon. The model predicts that tariff reduction increases informality and wage inequality and that the maximization of income requires a positive level of tariff protection. The model's results are shown to be consistent with the empirical evidence concerning Latin American countries.     

Does economic globalisation affect income inequality? A meta-analysis

A large volume of econometric literature has studied the impact of economic globalisation on income inequality around the world. However, reported econometric estimates vary substantially, which makes it difficult to draw valid conclusions. This paper presents a quantitative summary and analysis of existing estimates regarding the globalisation–inequality relationship. We use a new data set consisting of 1,254 observations from 123 primary studies. By applying meta-analysis and meta-regression methods, we obtain several main findings. First, globalisation has a (small-to-moderate) inequality-increasing effect. Second, while the effect of trade globalisation is small, financial globalisation shows a more sizeable and significantly stronger inequality-increasing impact. Third, we find an average inequality-increasing impact of globalisation in both advanced and developing countries. Fourth, education and technology moderate the impact of globalisation on income inequality.     

贸易自由化对工资差距的影响及作用机制--基于中国制造业企业的实证研究

本文利用世界银行的中国企业调查数据分析贸易自由化对工资差距的影响,结果表明贸易自由化显著提升企业内工资差距。企业进口投入品的行为使其内部普通员工的最高与最低工资之比提高约50％,总经理与中层经理的工资比提高约30％,中层经理与普通员工的工资比提高约12％－20％。进一步分析表明,自由贸易使企业对高技能劳动力的需求更大,更倾向于采用绩效工资、进行研发投资、提供员工培训和使用计算机,这些因素均导致工资差距的上升。     

The impact of trade openness on the unemployment rate in G7 countries

Recent and ongoing literature strongly implies the existence of a significant and robust impact of trade openness (liberalisation) and globalisation on unemployment, particularly in developed economies. This paper empirically investigates the impacts of four different measures of trade openness and globalisation on the unemployment rate in an unbalanced panel framework. The analysis focuses on the G7 countries: Canada, France, Germany, Italy, Japan, the United Kingdom (UK), and the United States (US). Robust empirical findings from panel data estimates demonstrate that, along with macroeconomic indicators and market size, all the measures of trade openness and globalisation are significantly and negatively associated with the unemployment rate. Therefore, we conclude that the continuation of the globalisation process instead of protectionism is of great importance in reducing the unemployment rate in developed economies.     

Openness,inequality and poverty: Endowments matter

Using tariffs as a measure of openness, this paper finds consistent evidence that the conditional effects of trade liberalization on inequality are correlated with relative factor endowments. Trade liberalization, measured by changes in tariff revenues, is associated with increases in inequality in countries well-endowed with highly skilled workers and capital or with workers that have very low education levels. Similar, although less robust, results are also obtained when decile data are used instead of the usual Gini coefficients. Taken together, the results are strongly supportive of the factor-proportions theory of trade and suggest that trade liberalization in poor countries where the share of the labor force with little education is high raises inequality. Simulation results also suggest that relatively small changes in inequality as measured by aggregate measures of inequality, like the Gini coefficient, are magnified when estimates are carried out using decile data.     

International portfolios, capital accumulation and foreign assets dynamics

Despite the liberalization of capital flows among OECD countries, equity home bias remains sizable. We depart from the two familiar explanations of equity home bias: transaction costs that impede international diversification, and terms of trade responses to supply shocks that provide risk sharing, so that there is little incentive to hold diversified portfolios. We show that the interaction of the following ingredients generates a realistic equity home bias: capital accumulation and international trade in stocks and bonds. In our model, domestic stocks are used to hedge fluctuations in local wage income. Terms of trade risk is hedged using bonds denominated in local goods and in foreign goods. In contrast to related models, the low level of international diversification does not depend on strongly countercyclical terms of trade. The model also reproduces the cyclical dynamics of foreign asset positions and of international capital flows.