出口与企业生产率:由实证而理论的最新拓展

出口与企业生产率之间关系的研究属于国际贸易研究的最新论题,这原本是个实证论题,后来被提升到理论层面。大量的实证研究文献集中在"自我选择效应"和"出口学习效应"两个命题。理论层面的拓展以对传统理论之企业无差异假定条件的打破为基点。文章在对1995-2006年关于出口与企业生产率关系的实证与理论研究进行归纳、总结的基础上提出了进一步研究的方向。     

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.     

欧盟、北美优惠性原产地规则对我国的借鉴

经济全球化的加剧使得中间品贸易越来越频繁,最终产品的国籍变得越来越模糊。在我国参与组建更多区域性优惠贸易协定时,优惠性原产地规则显然成为一项重要的贸易政策工具。欧盟与北美两大地区的原产地规则已在世界范围内造成广泛影响,为我国原产地规则的制定提供了有益的参考。在简单介绍原产地规则后着重研究了欧盟与北美的优惠性原产地规则。在分析我国原产地规则的基础上,从欧美的实践总结出几点启示,即我国应逐步完善制度性管理规则,逐渐协调和统一原产地规则并结合自身目标综合使用标准。     

Exposure to foreign markets and plant-level innovation: evidence from Chile and Mexico

Unlike most studies that calculate productivity as a residual, this study uses detailed plant-level data to examine the relationship between exposure to foreign markets and specific innovations including product design, investment in new tools (such as computers), research and development, and innovation in products and processes. The results suggest that exposure to foreign markets is positively related to most types of technology. The effects seem to be stronger in recently liberalized Mexico, which may suggest that the innovation gains from liberalization are greatest in the early stages of liberalization.     

Stability of long-run growth in East Asian countries: New evidence from panel stationarity test with structural breaks

This paper investigates the stability of the steady-state growth process in East Asian region using a novel panel stationarity test, which allows us to control for (a) unobserved heterogeneity in form and date of potential structural breaks in a trend function, (b) the cross-sectional dependence among countries in the panel bootstrapping methods, and (c) the serially correlated errors. Evidence shows that a large majority of countries exhibit slowdowns in economic growth after their structural breaks and thus could not recover from negative shocks and return original balanced growth path.     

Technology spillover through trade and TFP convergence: 135 years of evidence for the OECD countries

Using a new dataset on imports of technology and total factor productivity (TFP) over 135 years for the OECD countries, this paper tests whether knowledge has been transmitted internationally through the channel of trade. The empirical estimates show that there is a robust relationship between TFP and imports of knowledge and that 93% of the increase in TFP over the past century has been solely due to imports of knowledge. Furthermore, it is shown that knowledge spillovers have been an important contributing factor behind the TFP convergence among the OECD countries over the period 1870 to 2004.     

Smooth breaks and nonlinear mean reversion in real interest parity: Evidence from East Asian countries

This study aims to explore the empirical validity of the real interest rate parity (RIP) hypothesis for East Asian countries using Japan as the base country. To this end, we employ the recently proposed unit root tests of Christopoulos and Leon-Ledesma that account for both multiple smooth structural breaks of unknown form and nonlinear mean reversion in the series. Our empirical results uncover overwhelming evidences in favor of the RIP hypothesis for the whole countries in our sample. More specifically, through a Fourier approximation, it is observed that all real interest rate differentials display a mean-reverting behavior around an infrequently smooth-breaking mean, with the breaks being in accordance with the financial reforms and economic crises witnessed by the countries. Moreover, the degree of mean reversion appears to vary nonlinearly with the size of real interest rate appreciations and depreciations.     

Foreign direct investment and productivity spillovers in Irish manufacturing industry: evidence from plant level panel data

It is often argued that foreign firms may enhance the productivity of indigenous firms in an economy, through forward or backward linkages. Such externality effects typically are called “productivity spillovers”. In terms of foreign direct investment (FDI), Ireland is one of the most globalized economies in the world, having pursued a strategy of promoting investment by foreign companies for over 40 years. This article examines possible productivity spillovers from foreign‐owned firms to indigenous firms in the Irish manufacturing sector, using plant‐level data on all manufacturing firms for the period 1991–1998. Despite Irish policy commitment to building linkages between foreign and domestic firms, we find only weak evidence of spillovers and this evidence is sensitive to the definition and measurement of foreign presence.