Trade and imperfect competition in general equilibrium

This paper employs a multi-industry general equilibrium model of oligopolistic competition, free market entry and trade in which capital is used to establish firms and labor is used for production. We show that both absolute and relative endowments matter for the pattern of trade. We demonstrate that market entry to each industry is either too excessive or too moderate while the effect on firm size is ambiguous. If countries are sufficiently symmetric, trade will increase the wage–rental ratio in both countries. Furthermore, trade will increase per-capita consumption in capital-intensive industries and reduce it in labor-intensive industries. Nevertheless, trade will be mutually welfare-improving under relatively mild conditions.     

Fairness,trade, and inequality

We develop a model of international trade between two symmetric countries that features inter-group inequality between managers and workers, and also intra-group inequality within each of those two groups. Individuals are heterogeneous with respect to their managerial ability, and firms run by more able managers have a higher productivity level and make higher profits. There is rent sharing at the firm level due to fair wage preferences of workers, and hence firms with higher profits pay higher wages in equilibrium in order to elicit their workers' full effort. We show that in this framework international trade leads to a self-selection of the best firms into export status, with exporting firms having to pay a wage premium. Aggregate welfare increases, but there is also larger inequality along multiple dimensions: Involuntary unemployment and income inequality between managers and workers increase, and so does inequality within these two subgroups of individuals, as measured by the respective Gini coefficients.     

Trade liberalization and the allocation of labor between households and markets in a poor country

We consider the relationship between relative price changes and the allocation of labor between households and the formal wage labor market in the context of Vietnam's liberalization of its rice trade in the 1990s. Many individuals in poor economies work within their own household rather than in formal labor markets. We find that larger rice price increases in a community are associated with declines in hours adults devote to work within the household and increases in time spent in the wage labor market. We also observe increased specialization in household economic activities accompanying these shifts in hours towards wage work. Our results are consistent with the idea that a growth in the extent of the market shifts production and labor from households to markets during development, thereby inducing gains from specialization. Thus, the reallocation of labor between households and markets in response to a trade liberalization might be an important component in understanding the link between trade and growth in very poor economies, currently the focus of the Doha WTO negotiation round.     

A general equilibrium model of bilateral trade with strategic public investment in commercial infrastructure

We explore how public investment in commercial infrastructure affects the composition of trade between countries. To this end, we develop a model of bilateral trade in which two countries produce, consume, and trade a continuum of goods. Goods are produced by a single homogeneous factor, labor, the productivity of which depends on the quality of the country’s commercial infrastructure, broadly conceived to encompass transportation, communication, and power transmission networks; regulatory and legal institutions; and basic research and educational systems. Countries may improve the quality of their commercial infrastructures through increased public investment. However, returns on these investments are constrained by fixed ‘natural’ endowments, with the better-endowed country enjoying greater labor productivity for a given level of public investment. We begin by analyzing optimal investment in public infrastructure in one country when public investment by the trading partner is fixed. We find that, ceteris paribus, greater public investment in commercial infrastructure raises general labor productivity, leading to gains in workers’ real income. We then analyze a non-cooperative game in which both countries strategically vary public investment in commercial infrastructure. We find that, in a Nash game, the better-endowed country optimally spends more on infrastructure and produces the goods requiring the greatest labor productivity. However, in a Stackelberg game, the results are ambiguous. An empirical analysis based on recent international trade data supports our theoretical finding that investment in public infrastructure is positively related to the export of ‘high-end’ goods.     

劳动禀赋结构和技术效应结构——贸易与工资差距研究范式新探

在回顾文献基础上,本文梳理出贸易影响工资差距的机制,认为在劳动供给结构不变的前提下,工资差距决定于劳动需求结构变动,而劳动禀赋结构和技术效应结构是研究两者关系的重要范式。劳动禀赋结构模型是在两国生产两种产品且技术水平相同的框架下,贸易品由于劳动禀赋结构不同,导致单位成本产出水平变动,进而影响劳动需求结构和工资差距;而技术效应结构模型则是在两国生产一种产品且技术水平不同的框架下,贸易品由于技术效应结构不同,导致相对工资和劳动需求关系曲线变动,进而影响劳动需求结构和工资差距,而且直接效应和间接效应的传导机制有很大差别。     

On the similarity of country endowments

We study the production side of the Heckscher-Ohlin model empirically. The evidence we present suggests that the endowments of countries around the world are too dissimilar for all countries to be able to produce the same set of goods. In contrast, the endowments of the rich OECD countries are sufficiently similar, so that these countries do not have to specialize in different subsets of goods. Our findings have implications for a variety of issues ranging from the trade and wages debate to economic development. Our analysis relies on the lens condition of Deardorff [Journal of International Economics 36 (1994) 167-175] that compares country endowments with sectoral factor inputs. We mainly focus on the production factors capital and labor. We test the robustness of the results with different data sets and with corrections for international differences in productivity and human capital. We confirm the similarity of the developed OECD countries with skilled and unskilled labor data. We also investigate in detail the implications of measurement error and sectoral aggregation.     

Trade Liberalization,Nature of Mergers and Employment

This paper investigates the roles of comparative advantage and market size in the international location of manufacturing production. Building on the conventional Helpman and Krugman (1985) general equilibrium framework, our analysis extends the present literature by incorporating both effects in the same model, while allowing trade costs to vary almost continuously from autarky to free trade. The main result of our exercise is that market size effects offset comparative advantage if countries have similar factor proportions. A large country with a slight comparative disadvantage in manufacturing production may thus be a net exporter of manufactures. A small country with the same comparative disadvantage would be a net importer of manufactures. When countries are very dissimilar in their relative factor endowments, land-abundant countries specialize in the production of food, irrespective of market size, if manufactures are a labour-intensive sector. Labour-rich countries of any size are manufacture cores. However, land-abundant countries with large markets can sustain a domestic manufacturing industry until trade costs are very low, and in some cases only specialize in agriculture at free trade.     

Trade and the (dis)incentive to reform labor markets: The case of reform in the European Union

We study the relation between international trade and the gains to reform labor markets by removing firing restrictions. We find that trade linkages imply substantially smaller benefits to reform than those calculated in the closed economy general equilibrium model of Hopenhayn and Rogerson [Hopenhayn, Hugo, Rogerson, Richard, 1993. Job Turnover and policy evaluations: a general equilibrium analysis. Journal of Political Economy 101 (5), 915–938 October]. When economies trade, labor market policies in one country spill over to other countries through their effect on the terms of trade. A key finding in the open economy is that the share of the welfare gains from domestic labor market reform exported substantially exceeds the share of goods exported. Thus, with international trade, a country retains little to no benefit from unilaterally reforming its labor market. A coordinated elimination of firing taxes yields considerable benefits. We also find that the U.K. benefits from labor market reform by its continental trading partners. These insights provide some explanation for recent efforts toward labor market reform in the European Union.     

经济开放条件下劳动力市场灵活性与内资企业劳动生产率——基于中国省市和行业数据的经验研究

本文系统地分析在经济开放条件下,劳动力市场灵活性对中国工业部门1999-2009年间内资企业的劳动生产率的影响。分析了经济开放条件下劳动力市场灵活性通过影响外商直接投资FDI流入间接影响劳动生产率和直接影响劳动生产率的两种渠道。此外运用3sls和2sls方法从地区和行业两个层面估计劳动力市场灵活性、FDI和国际贸易等因素对内资企业劳动生产率的影响。结果表明,国际贸易对内资企业生产率的影响不明显,但是伴随着国际贸易的技术外溢促进了地区劳动生产率;FDI具有较为显著的提高我国工业部门劳动生产率的效应;地区数据和行业数据估计都证实了劳动力市场灵活性可通过FDI间接作用和本身的直接作用促进内资企业的劳动生产率提高。     

A Ricardian model of international trade with oligopolistic competition

This paper studies a Ricardian model of international trade with a continuum of products in a general equilibrium model in which firms engage in oligopolistic competition. It provides a bridge between trade models based on perfect competition and models based on imperfect competition. Compared with a model based on perfect competition, the incorporation of fixed cost leads to the result that an increase of domestic labor may increase the relative wage of the domestic country.     

Overcoming informal barriers to trade: Immigrant educational attainment vs. network competence

Focusing on developed countries as the destination of both migrants and traded goods, we adopt a contingent perspective to examine the efficacy of immigrant resources in the promotion of international trade. We find that only immigrants with a low level of education facilitate trade when they originate from a developing source country (south→north trade), whereas only highly educated immigrants facilitate trade when they originate from a developed source country (north→north trade). This difference emerges from the immigrant’s role in helping overcome two distinct informal barriers to trade based on their different resource endowments in terms of network competence vs. educational attainment.     

Market integration and strike activity

We consider a two-country model of wage determination with private information in unionized, imperfectly competitive, industries. We investigate the effects of opening up markets to trade as well as of further market integration on the negotiated wage and the maximum delay in reaching an agreement. From an initial situation of two-way intra-industry trade, an increase in product market integration decreases the maximum delay in reaching an agreement. However, opening up markets to trade has an ambiguous effect on both the wage outcome and the maximum real delay time.     

农民工性别工资差距的分位数回归分析——基于浙江农民工调查的经验研究

本文利用浙江省农民工调查的微观数据,通过分位数回归和分位数分解的方法,研究了男性和女性农民工在整个工资分布上的差异及其影响因素。研究结果表明,随着收入水平的提高,农民工群体间的性别工资差异呈逐步扩大的趋势,但性别工资歧视程度在不断降低。在收入分布的低分位数上,歧视是造成农民工性别工资差距的主要原因;而在高分位数上,个人资源禀赋造成的差异则成为性别工资差距的主要来源。     

The impacts of trade liberalization on informal labor markets: A theoretical and empirical evaluation of the Brazilian case

Following trade liberalization, several developing countries experienced a sharp increase in the share of informal manufacturing employment. In this paper, I examine the impacts of trade liberalization on the labor markets of a small open economy, in an environment in which tariffs affect firms' payroll tax compliance decisions. I demonstrate that a reduction in domestic import tariffs reduces the average formal wage and show that the direction of the effect on the share of informal employment depends on the initial labor market conditions. A cut in trading partner import tariffs decreases the share of domestic informal employment and increases the average formal wage. I confirm the model's principal findings empirically, using data from the 1989–2001 Brazilian trade liberalization episode. I find the results robust to endogeneity and self-selection concerns, which are addressed, respectively, using instrumental variable and switching regression approaches.     

国际贸易、租金分享和工资水平——基于浙江制造业的实证研究

本文在工资决定的租金分享谈判框架下,利用浙江省2004年的经济普查数据,研究了国际贸易、企业盈利能力对制造业企业工资水平的决定效应。研究发现,资本方和劳动方之间存在明显的租金分享机制,企业盈利能力的增加会导致制造业从业人员收入的提升;尽管出口贸易没能提升企业的盈利能力,但出口贸易可增强劳动方在租金分享中的谈判能力,最终提升工资水平。最后,本文在租金分享谈判框架下讨论了工资差异问题,并得出结论认为,当前的国际贸易模式不会导致工资差异的扩大,但是产业管制政策和外商直接投资有导致工资差异进一步扩大的可能性。     

Trade liberalization and intersectoral labor movements

This paper examines the impact of trade liberalization episodes on movements of labor across sectors. The aim is to assess empirically whether increased trade openness leads to increased structural change and, if so, to what extent. Results for a set of 25 liberalization episodes suggest weakly negative effects of liberalization on the extent of intersectoral labor shifts at the economy-wide 1-digit level of disaggregation. We do uncover increased sectoral change after liberalization at the 3-digit level within manufacturing, although the estimated effects are statistically weak and small in magnitude. The effects of liberalization on labor shifts differ across individual countries, in a way related to the scope and depth of reforms.     

中间产品贸易、技术溢出与发展中国家的工资差距:一个理论框架

中间产品贸易的技术溢出是国际贸易影响熟练劳动力与非熟练劳动力之间工资差距的一个重要机制。本文构建了一个理论框架,从中间产品贸易及其技术溢出效应的角度解释发展中国家相对工资差距不断扩大的现实。发展中国家从技术前沿的发达国家进口资本和技术密集型的中间产品,一方面可以使发展中国家间接地分享国际先进的R&D资本;另一方面给发展中国家带来了技术学习和模仿的机会。由于资本与技能的互补性和技术学习的技能偏向性,中间产品进口使发展中国家增加了对熟练劳动力的相对需求,从而扩大了熟练劳动力与非熟练劳动力之间的工资差距。     

Geographical Location of Foreign Direct Investment and Wage Inequality in China

This paper examines the relationships between distance and the transportation costs of international trade on the location‐specific effects of foreign direct invest‐ment and provincial per capita income in China. Applying the economic geography model proposed by Redding and Venables (2004), it traces the increasing wage inequality among the coastal and inland provinces by focusing on the distance of foreign‐owned firms from access to international markets and to suppliers of intermediate inputs. First, a gravity‐type equation is used to construct the ‘market access’ and ‘supplier access’ variables. Then, the effect of market and supplier access on provincial wage rates is estimated. The results indicate that distance does affect international trade and geography explains roughly one‐third of the wage differential. Greater market access increases the provincial wage gap, while larger supplier access increases the wage difference in trade destined for the foreign market but decreases the wage difference in trade targeted for the domestic market. Similar findings also result from applying the estimations to two local firm types: state‐owned enterprises and collective‐owned enterprises.     

Investment liberalization and international trade

This paper estimates the cross-price elasticity of exports with respect to investment costs for bilateral relations between 36 countries. We show that the effect of reducing foreign direct investment costs on exports depends on country characteristics and trade costs as predicted by the [Markusen, 1997] and [Markusen, 2002] model. When countries differ in relative factor endowments and trade costs are low, investment liberalization stimulates exports, whereas when countries are similar in terms of relative factor endowments and size, and trade costs are moderate to high, investment liberalization reduces exports.     

基于产业博弈视角的国际贸易摩擦分析

世界各国产业结构在形成整体性演进中,在具有重要战略意义的农业及高利润产业,呈现了动态上同构的加速趋势.产业结构的同构引发了市场上的激烈竞争,致使各国之间的国际贸易摩擦风起云涌.解决国际贸易摩擦最好的办法就是在全球范围内构建结构互补、水平分工与垂直分工交织并存的国际分工网络体系.