中国纺织企业出口与生产率关系:基于上市公司 2001～2010年数据的实证检验

本文采用中国纺织类上市公司2001～2010年数据,对新新贸易理论关于企业出口与生产率关系的两个假说进行实证检验,结果表明:(1)出口企业比非出口企业具有更高生产率,出口高参与度企业比低参与度企业具有更高生产率;(2)样本企业存在自选择,即生产率差异是决定企业是否参与出口的原因,且出口高参与度企业此关系更趋明显;(3)就所有样本企业而言,不存在"出口中学",但出口高参与度企业的单独检验显示存在此效应。本文认为,采用过去10～15年数据对中国企业的检验,除了已关注到的贸易方式、所有制等特殊问题外,企业特定贸易壁垒等因素也有待进一步考察。     

A longitudinal study of the relationship between export activity and innovation in the Spanish firm: The moderating role of productivity

Does innovation lead the firm to export more products, or does a firm's export propensity induce it to innovate? How does a firm's productivity level change this relationship? After confirming that exporters develop more innovations than non-exporters, this study attempts to answer these questions by studying two effects. First, we analyse the impact of innovation on a firm's export activities while addressing potential endogeneity concerns. Second, we examine the impact of export activity on a firm's innovation performance. We must address both questions when considering firm productivity. To this end, we conduct a longitudinal analysis of 14,142 observations of an annual average of 1767 Spanish firms within the manufacturing sector during the period from 2001 to 2008. The results suggest that the self-selection hypothesis adequately explains the observed phenomena. That is, innovation induces firms to increase their export activities. This finding is robust to endogeneity. Nevertheless, firms do not experience any learning-by-exporting effects on the obtaining of product or process innovations. Productivity does not modify any of these relationships.     

From the Editor

This article revises the thesis that exporting firms learn to be more innovative and efficient as they have contact with certain information flows from their foreign activity. It begins by exploring the connections between two concepts: self-selection and learning-by-exporting. The study proceeds with a comparative analysis of the most recent literature and presents common facts and key issues still open to debate. Learning-by-exporting should be measured directly using firms' innovative performance. Given the lack of suitable data on firms' innovative activities, most studies—although without consensus—have followed an indirect approach using productivity measures.     

Firm productivity and export markets: a non-parametric approach

This paper examines total factor productivity differences between exporting and non-exporting firms. These differences are documented on the basis of a sample of Spanish manufacturing firms over the period 1991-1996. The paper also examines two complementary explanations for the greater productivity of exporting firms: (1) the market selection hypothesis, and (2) the learning hypothesis. Non-parametric tests are proposed and implemented for testing these hypotheses. Results indicate clearly higher levels of productivity for exporting firms than for non-exporting firms. With respect to the relative merits of the selection and the learning hypotheses, we find evidence supporting the self-selection of more productive firms in the export market. The evidence in favor of learning-by-exporting is rather weak, and limited to younger exporters.     

Vertical integration and efficiency: an application to the Italian machine tool industry

This paper analyzes the relationship between firm efficiency and vertical integration in the Italian machine tool (MT) industry. The link may really be the result of a two-way causality: the effect may run from productive efficiency to the type of vertical organization (i.e. vertical integration or outsourcing), as a self-selection mechanism, or an effect from the organizational mode to the firm’s performance may (also) be at work. This relationship is empirically investigated in a novel panel dataset comprising about 500 Italian MT builders, implementing two equations and instrumental variables for the two directions of causality. The evidence clearly indicates the self-selection mechanism of the most efficient firms in vertically integrated structures, while an effect from the organizational mode to the firm’s efficiency is not supported.     

Explaining cross-country differences in exporting performance: The role of country-level macroeconomic environment

In this paper, we undertake a meta-analysis to investigate whether country-level macroeconomic factors can help explain the inconclusiveness of existing evidence on the firm-level productivity–exporting relationship – the so-called learning-by-exporting hypothesis. Using 34 studies that investigate learning by exporting covering 31 countries, we attempt to explain whether country-specific macroeconomic factors account for the variation in the estimated firm-specific productivity effects from exporting across different studies, along with considering a firm-level factor. Robust to different specifications, one interesting finding is that countries with bigger external demand (measured by distance-weighted global GDP for each country) are likely to display a higher estimate of the productivity effect of exporting. In addition, countries with higher competitiveness, as reflected in lower relative prices, tend to experience higher exporting performance, while higher returns from overseas production reduce the learning effect from exporting at the firm level. The results also indicate that the effect of exporting on firm productivity is lower in periods of financial crisis.     

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.     

异质企业贸易模型的理论进展

21世纪初国际贸易领域的研究重点逐渐由对产业的关注转向对国际贸易中异质企业的关注。本文介绍了异质企业贸易模型的建立、异质企业贸易模型的拓展,围绕企业生产率异质性、企业出口行为和FDI行为选择、企业一体化和外包组织形式选择等核心问题,对现有国际研究成果进行了综述,并探讨了异质企业贸易模型的发展方向。     

Location decision of heterogeneous multinational firms

We examine how multinational firms with heterogeneous total factor productivity (TFP) self-select into different host countries. Both aggregate- and firm-level estimates suggest that more productive French firms are more likely than their less efficient competitors to invest in relatively tough host countries. Countries with a smaller market potential, higher fixed costs of investment or lower import tariffs tend to have higher cutoff productivities and attract a greater proportion of productive multinationals. This self-selection mechanism remains largely robust when we control for unobserved firm and country heterogeneity and address potential TFP endogeneity.     

出口多样化与经济增长:理论及对中国的经验研究

本文在新古典主义生产函数的框架下,建立出口多样化促进经济增长的理论模型,分析了出口多样化产生的出口中学效应和干中学效应,利用中国的数据对该假说作进一步的计量检验。结果表明,中国出口的多样化程度先迅速提高后缓慢下降,加工贸易的发展促进我国出口垂直多样化程度的提高,而动态最小二乘法回归结果验证了我国出口多样化对经济增长的推动作用非常明显,并且垂直多样化的贡献度要更高于水平多样化。     

Does outward FDI generate higher productivity for emerging economy MNEs? – Micro-level evidence from Chinese manufacturing firms

This paper investigates whether emerging economy multinational enterprises (EMEs) that undertake outward foreign direct investment (OFDI) become more productive, controlling for the self-selection into the global investment market. Particularly, we focus on the moderating effects of firm heterogeneity on the OFDI-productivity nexus. A theoretical framework incorporating the resource-based views and institutional theory is established and the propensity-score matching and difference-in-difference (DID) approaches are combined to test the framework, utilizing unique data on Chinese manufacturing firms over the sample period 2002–2008. We find that EMEs turn to be generally more productive after they conduct OFDI, but this productivity effect varies depending on the parent firm and investment strategy heterogeneity. Our results suggest that EMEs without state ownership but with stronger absorptive capability gain higher and more sustainable productivity effects and such gains are higher for EMEs investing in OECD than in non-OECD countries. Policy and managerial implications are discussed.     

Cross-border mergers and market concentration in a vertically related industry: theory and evidence

We present a tractable model of oligopoly to identify the linkages between local competition and cross-border mergers in a vertically related industry. We show that the incentives for cross-border mergers rise with vertical integration in an industry when the premerger concentration in that industry is sufficiently high relative to the concentration in the same industry in a foreign country. We also show that the incentives for a merger between a foreign firm and a vertically integrated home firm will be higher than that for a merger between a foreign firm and a disintegrated home firm, when the premerger concentration at home is low relative to the premerger concentration in the foreign country. We then analyze a firm-level panel of 90,614 M&A observations, between 1990 and 2012, from 86 countries. Logistic regressions confirm that market concentration is an important determinant of cross-border M&A. Our results support the conjectures of our theoretical model and are consistent with recent empirical findings and theoretical predictions.     

Exchange risk premia and firm characteristics

This paper examines the presence and the determinants of exchange risk premia in stock returns using firm level data from South Korea. We conduct empirical asset pricing tests based on cross-sectional data sorted by firm characteristics such as firm size, liquidity, foreign ownership, and industry. Using alternative model specifications and exchange rate measures, our results support the hypothesis of a significant unconditional exchange risk premium in the Korean stock market at firm and industry levels. More specifically, we find that the exchange risk premium is directly related to firm liquidity and inversely related to firm size and foreign ownership.     

Strategic Interactions,Bargaining Power and Stability of Joint Venture in an Emerging Nation

We model strategic interaction between a domestic firm and a foreign firm involved in a joint venture, incorporating negotiations over equity shares and its implications for stability in the context of an emerging country. The foreign firm has superior technology, whereas the domestic firm has better local market knowledge. Modelling simultaneous innovation effort and bargaining power over equity share, we provide a rationale for the stability of the joint venture. We find that a certain level of technological knowledge can empower the bargaining power under certain parameter configurations and assumptions, such that the firms will negotiate to agree over their equity shares and maintain the joint venture. In this context, the stability of the joint venture is always an expected outcome. We have also shown that the domestic firm’s bargaining power and knowledge acquisition directly affect the domestic firm’s R&D effort and threaten the stability of the JV. We try to justify a probable situation where the firms may negotiate hard over equity shares but still maintain the joint venture.

     

OPTIMAL DIVIDEND PAYMENTS WHEN CASH RESERVES FOLLOW A JUMP‐DIFFUSION PROCESS

We consider a model in which a firm faces two types of liquidity risks: a Brownian risk and a Poisson risk. The firm chooses a dividend policy to maximize shareholder value. We characterize the optimal firm value and we show that the optimal dividend policy is a barrier strategy: the firm keeps cash inside when the cash reserves level is less than a critical threshold and pays cash in excess of this threshold. We also analyze the problem of insurance against the Poisson risk. We find that it is optimal for the firm to buy full insurance when its cash reserves are above a critical threshold and not to insure otherwise.     

Wages,Health Insurance Benefits,and Worker Sorting Under Asymmetric Information

Abstract

Employer-sponsored health insurance is the single largest source of health insurance in the USA. In this paper, we explore a model that treats a firm as a de facto insurance company. More specifically, we model a firm as both a producer of goods for an output market and a health insurance company for their employees. The model accounts for the joint provision of wages and health insurance, including the possibility of asymmetric information in employee health status. With this structure, a firm can choose to pay their workers in some combination of cash wages and health insurance. We characterize optimal employment contracts and show that the Rothschild–Stiglitz model results under asymmetric information extend to employer provided insurance. We also find that employment-based insurance offers pooling options that are typically not available when insurance is sold as a standalone product, suggesting a stability to employer-based insurance that is not dependent on the tax system.     

Trade liberalization,division of labor and welfare under oligopoly

Incorporating explicitly division of labor into a two-country general oligopolistic equilibrium model, we examine the effects of trade liberalization on firm productivity and welfare. We show that a tariff reduction increases the firm productivity of the trading industries but decreases that of the non-trading industries. An expansion of the trading industries, in contrast, decreases the firm productivity of both the trading and non-trading industries. We then find that a tariff reduction necessarily reduces welfare while the welfare effect of expansion of trading industries is ambiguous.     

Exporting and productivity in business services: Evidence from the United States

Does exporting make firms more productive, or do more productive firms choose to become exporters? This paper considers the link between exporting and productivity for a sample of firms in US business services. We find that larger, more productive firms are more likely to become exporters, but that these factors do not necessarily influence the extent of exporting. This conforms with previous literature that there is a self-selection effect into exporting. We then test for the effect of exporting on productivity levels after allowing for this selection effect. We model both the relationship between exporting and productivity, and a simultaneous relationship between export intensity and productivity after allowing for selection bias. In both cases we find an association, indicating that productivity is positively linked both to exporting and to increased exposure to international markets.     

A method for calculating export supply and import demand elasticities

This article has a dual aim. First, it sets out to underline a learning-by-exporting effect in Spanish firms between 1991 and 2002. It further seeks to outline the conditions allowing firms to benefit from these spillover effects. Using a propensity score matching method, a group of firms having entered the export market (treatment group) is compared with a similar group of non-exporting firms (control group), and difference-in-differences regressions are carried out. The results show a cumulative productivity differential of 32% for the first four years of exporting, with continuous improvement in productivity. After three years of exporting, productivity gain is still approximately 10%. This study shows that increases in capacity utilisation and competitive pressure from foreign markets are insufficient to explain this causal link between exporting and total factor productivity (TFP). It is thus possible to deduce the presence of a learning-by-exporting effect, benefiting firms with sufficiently qualified employees and which are already engaged in international relations (due to foreign suppliers and/or foreign equity participation).     

Testing a model of exploration and exploitation as innovation strategies

We suggest a structural model that specifies firm growth as a function of firm-specific parameters, market-specific parameters, and competition for purchasing power. The model distinguishes between two firm innovation strategies: exploration and exploitation. On the basis of a set of simulations of this model, we derive a number of empirically testable hypotheses. A subset of these have already found support in the empirical literature. We take these as evidence in favor of the explanatory power of the model. In addition, we are able to derive further testable propositions on the interaction of firm-demographic processes, innovative behavior and market structure that go beyond the existing literature and that we suggest for further research. We conclude that the approach chosen here provides a fruitful pathway for further research.