何去何从:贸易保护还是开放竞争?——来自微观企业创新的证据

文章基于熊彼特效应和逃离竞争效应假说,结合中国转轨时期的经济制度背景,利用2001?2008年制造业关税数据和沪深A股上市公司专利数据,研究了中国加入WTO后,关税削减所导致的进口竞争对企业创新的影响.研究发现,关税削减后,企业的发明专利申请数量显著增加,而专利申请总数和非发明专利申请数量却没有受到显著影响,表明进口竞争激励企业进行了高质量的发明创新.进口竞争的激励效应对于易受竞争影响和全要素生产率高的企业更加显著.文章认为,应以开放的心态迎接贸易自由化和进口竞争,引导企业将进口竞争转化为创新动力,推动企业创新向高质量迈进,形成国际竞争新优势.     

Trade liberalisation,market competition and wage inequality in China's manufacturing sector

Economic reforms of the late 1980s have contributed to rapid economic growth in China. While the overall standard of living has improved, economic growth has also resulted in an increase in income inequality. Rising income inequality can increase social tensions that can impede further economic growth. By making use of firm level panel data, this paper focuses on the impact of increased market competition and trade liberalisation on skilled–unskilled wage inequality in China's manufacturing sector. A theoretical model is used to argue that trade liberalisation and market competition can affect skilled–unskilled wage inequality. Based on this result, an econometric model is specified. The empirical analysis presented in this paper shows that increased trade liberalisation has contributed to an increase in skilled–unskilled wage inequality in China's manufacturing sector. However, increase in market competition has the opposite effect.     

论中国对外贸易发展战略的选择

伴随着以知识经济和技术创新为主导的经济全球化的推进，国际贸易对每个国家经济的引擎作用不可同日而语，国际市场竞争变得愈加激烈，其形式、内容也发生了深刻的变化。长期指导我国外贸战略的比较优势贸易理论已不再适应国际、国内经济形势的变化，制约着经济的快速发展。因此，我国应逐步淡出比较优势战略，而选择以竞争优势为主导的贸易发展战略。     

Testing for the Fisher hypothesis under regime shifts: an application to Asian countries

This article aims to provide new insights into trade effects of the Greater Arab Free Trade Area (GAFTA), using an imperfect competition framework. The model combines the new gravity model approach with supply-demand export equations in imperfect competition. In this regard, the role of scale economies, product varieties and expectations is explored. Facing the lack of international data on scale economies, we also develop a translog production system which makes it possible to obtain reliable estimates of this factor. For a more rigorous treatment of the endogeneity problem in the model, we make use of an instrumental GMM panel estimator. Results show limited effects of GAFTA on regional trade in imperfect competition, due to market segmentation and the predominance of inter-industry trade. In addition, the fitted intra-GAFTA trade values are far beyond the actual ones. This suggests that GAFTA countries could benefit from deeper regional trade integration. In this regard, the Arab Spring creates new opportunities to reinforce trade integration as a means of grasping additional trade gains in this area.     

Innovation and international trade in technology

The international market for technology is growing rapidly relative to world GDP. To study the international technology market, I present a model of innovation and international trade in which inventors auction their technology in both domestic and foreign markets. There is monopolistic competition in differentiated products. International trade in technology has number of significant economic effects. Technology trade improves the quality of innovation by increasing the pool of R&D experiments from which the best technology is chosen. Technology trade increases the efficiency of invention while at the same time lowering the total number of inventors relative to the equilibrium without technology trade. Technology trade increases the volume of trade in goods. Technology trade increases product variety at the market equilibrium. Technology trade increases national income in each country and increases total gains from trade.     

Does the quality of political institutions affect intra-industry trade within trade blocs? The ASEAN perspective

There has been a renewed resolve for deeper integration and cooperation within ASEAN. Intra-industry trade (IIT) is often viewed as a way of achieving economic as well as political integration. This article tests for the effect that political regime and governance may have on the intensity of IIT. We particularly examine if quality of political institutions which includes corruption and democracy indices as well as economic factors comprising corporate tax rate, regional FDI flow, flexibility of exchange rate regime, size of the market, economic distance affect the intensity of horizontal and vertical IIT. The study finds that control of corruption and good governance both increase the vertical IIT but not the horizontal IIT. The study further finds that intra-economy FDI flow, stable exchange rate regime, market size and proximity positively affect IIT within the trade bloc. However the negative effect of corporate tax rate suggests that if countries were to coordinate their tax policies, they could avoid harmful tax competition and promote IIT across their borders. The findings regarding the effect those economic and political factors have on the intensity of IIT certainly warrants the attention of policy makers and researchers alike.     

Market Size, Trade, and Productivity

We develop a monopolistically competitive model of trade with firm heterogeneity—in terms of productivity differences—and endogenous differences in the "toughness" of competition across markets—in terms of the number and average productivity of competing firms. We analyse how these features vary across markets of different size that are not perfectly integrated through trade; we then study the effects of different trade liberalization policies. In our model, market size and trade affect the toughness of competition, which then feeds back into the selection of heterogeneous producers and exporters in that market. Aggregate productivity and average mark-ups thus respond to both the size of a market and the extent of its integration through trade (larger, more integrated markets exhibit higher productivity and lower mark-ups). Our model remains highly tractable, even when extended to a general framework with multiple asymmetric countries integrated to different extents through asymmetric trade costs. We believe this provides a useful modelling framework that is particularly well suited to the analysis of trade and regional integration policy scenarios in an environment with heterogeneous firms and endogenous mark-ups.     

产品市场竞争、知识外溢与企业技术效率提升

利用248家国防科技相关企业与具有军工资质的民营企业2009-2017年面板数据,分2009-2012年、2013-2017年两阶段研究产品市场竞争、知识外溢与企业技术效率间的关系。结果发现,产品市场竞争对于企业技术效率提升具有显著促进作用;相较于国防科技相关企业,这种正向效应在具有军工资质的民企中表现得更为显著,并且随着国防与民营经济的融合发展,这两种正向效应更为显著。进一步引入知识外溢与产品市场竞争交互项发现,无论是技术人员知识外溢还是技术人员产出外溢,随着外溢程度增加,均会抑制产品市场竞争对企业技术效率的正向影响;在国有国防科技相关企业中,技术人员产出外溢效应的抑制作用更强。     

Testing creative destruction in an opening economy

This paper analyses the relationship between trade liberalization and economic growth using a Schumpeterian framework of technological innovation and applies it to sector‐level South African data. The framework examines direct and indirect effects of trade liberalization on productivity growth. Indirect impacts operate through a differential impact of trade liberalization on firms conditional on their distance from the international technological frontier. Results confirm positive direct impacts of trade liberalization. Results confirm also that the greatest positive impact of trade liberalization will be on sectors that are close to the international technological frontier and that experienced a low level of product market competition before liberalization.     

Market collusion and the politics of protection

This paper investigates the relationship between trade and competition policy within a model where market collusion and protectionist lobbying are themselves related. Collusion and lobbying are modeled as joint products of the same collective effort of firms. In equilibrium, firms cannot achieve greater cooperation in one dimension without reducing it in the other. A trade agreement that limits the effectiveness of lobbying may cause firms to increase market collusion, thereby increasing the domestic price. Thus, international trade agreements may run counter to the goals of competition policy. On the other side, a more restrictive competition policy is shown to either reduce the domestic price or reduce import protection. Thus, competition policy tends to promote trade policy goals. The reason is that restrictive competition policy undermines collusion at the source—it decreases the per-firm benefit to collusion relative to the gains from deviating—reducing firm cooperation in both dimensions.     

Trade Imbalance and Domestic Market Competition Policy

This study investigates the effect of a country's suppression of competition in its market for nontradables. It assumes that the initial equilibrium is stationary and demonstrates that if competition is suppressed in a small country, the country's trade surplus increases in the short run. In the large country case, the same change creates an excess demand for future tradables and affects the relative price between present and future tradables. Using a two‐country model, the study shows that this price change redistributes real wealth from the country with a trade deficit to the country with a trade surplus.     

Trends in Market Concentration of Australian Industries

A host of industrialised countries have seen concentration in their industries grow. This trend is fuelling concerns about falling competition. This article focuses on the changing pattern of market concentration in Australia from 2002 to 2017. On average, market concentration has been rising. However, beneath the aggregate statistics, the pattern is rather mixed, with concentration falling in several sectors. The study also detects a pattern of strong productivity growth alongside a shift towards capital intensive operation and increasing trade where concentration is growing. Overall, the implications of these findings point to the possibility that rising market concentration in some industries is technology driven and not due to a lack of competition.     

外贸可持续发展的战略研究——以湖南省为例

对外贸易是推动湖南经济快速增长的重要力量.面对当前国内外形势发生的一系列重大变化,外贸发展已进入重要的战略转型期.湖南要实现对外贸易发展的新突破,在更大范围、更广领域和更高层面上参与国内外竞争,就必须加快转变外贸增长方式,可持续发展的外贸发展方式是湖南走向成功的必经之路.本文在介绍新世纪以来湖南对外贸易发展基本状况的基础上,结合运用图表数据分析,并运用经济管理相关理论知识对湖南近年来外贸可持续发展状况进行综合评价分析,最后就湖南外贸可持续发展的战略选择提出相关建议.     

Trade credit use and competition in the value chain

Trade credit is a major source of finance in value chains in developed and emerging economies. Despite its ubiquitous use, this is one of the first empirical studies that analyzes why the use of trade credit varies along the value chain. We argue that competition faced by firms at different stages in the value chain and enforcement mechanisms that stimulate repayment jointly determine the use of trade credit. We distinguish two dimensions of competition, that is, rivalry and customer bargaining power. Competition may stimulate firms to provide trade credit to keep customers from switching to other suppliers. Yet, high contract enforcement costs relative to the value of the transactions, reduce the willingness to offer trade credit. We find empirical evidence showing that competition does not (strongly) influence the use of trade credit in the retail market, whereas it does in the markets for wholesalers and millers. We interpret these results as suggestive evidence that the retail, wholesale and milling market segments differ in terms of the enforcement costs involved in the provision of trade credit. Rivalry at the retail market segment makes switching easy for customers, even in case of default. As enforcement of repayment in this market segment is difficult and costly, trade credit appears to be a risky and less attractive marketing instrument for retailers. In contrast, in the wholesale and milling market segment, trade credit is widespread as stakeholders know each other, making informal mechanisms effective in supporting the enforcement of trade credit repayment.     

Regional integration and innovation offshoring with occupational choice and endogenous growth

We study the effects of regional integration on patterns of production and offshoring in a two-region model of occupational choice and endogenous growth. The distribution of asset wealth and allocation of heterogenous workers into innovation and production determines relative market size. When trade costs and knowledge dispersion are high (low), the asset wealthy (poor) region has a larger market and greater shares of innovation and manufacturing. For low to intermediate levels of trade costs, innovation and manufacturing offshoring flows toward the larger region, but when trade costs and knowledge dispersion are high, offshoring flows from the larger asset wealthy region to the smaller asset poor region. Economic growth is unaffected by the shifts in innovation and production that coincide with changes in relative market size.     

Differentiated Products,Divided Industries: Firm Preferences over Trade Liberalization

The recent focus on firms in international trade suggests two conjectures about preferences over trade policy – only the most productive firms should support freer trade, and industries can be internally divided over reciprocal liberalization. This paper clarifies the content and scope of these claims. The most productive firms are generally not the greatest beneficiaries from trade liberalization and may oppose further liberalization due to increased competition in export markets from compatriot firms. Exporting industries will feature no support for trade if foreign competition is too strong or barriers too unequal. The key analytic factor generating intra‐industry division is product differentiation, both directly, by increasing export opportunities for less efficient firms, and by inducing home market effects wherein larger countries are more competitive. The implications of these findings for the distributional effects of liberalization and the study of trade politics are discussed.     

Distorted Trade Barriers: A Dissection of Trade Costs in a “Distorted Gravity” Model

It is common in the trade literature to use iceberg transport costs to represent both tariffs and shipping costs alike. However, in models with monopolistic competition these are not identical trade restrictions. This difference is driven by how the two costs affect the extensive margin. We illustrate these differences in a gravity model. We show theoretically that trade flows are more elastic with respect to tariffs than transport costs and find a linear relationship between the elasticities with respect to tariffs, iceberg transport costs, and fixed market costs. We empirically validate these results using data on US product‐level imports.     

基于人力资本视角的中国服务贸易比较优势分析

随着全球产业结构的升级和国际贸易的发展,服务贸易成为了各国竞争的焦点。研究服务贸易比较优势的形成和转换成为了当务之急。本文从服务贸易总量、国际市场占有率、服务贸易结构三个方面对我国服务贸易的比较优势进行了测度,结果表明我国服务贸易总量增长迅速,远超于世界平均水平,但是总体竞争力低,结构不平衡。运用1982—2006年的数据,以柯布·道格拉斯生产函数为基础,构建服务贸易比较优势影响因素的多要素模型进行实证分析,回归结果显示,物质资本、劳动力、人力资本和FDI对服务贸易出口显著正相关。其中,劳动力的产出弹性最大,人力资本的产出弹性次之,说明我国服务贸易的比较优势主要来源于劳动力,人力资本的促进作用较小,从加大教育投入、增强技术创新、吸引外国投资方面提出促进我国服务贸易比较优势转换的建议。     

Structural Estimation of Variety Gains from Trade Integration in Asia

This article studies the variety gains of trade integration in Asia. Adopting a heterogeneous firm model of trade of monopolistic competition allowed us to estimate not only the welfare gains because of country specialisation, but also the variety gains arising from trade integration. The underlying structural parameters were estimated econometrically, based on a large panel of firm‐level data for the Asian economies (ORIANA). Our empirical findings suggest that, when relaxing the assumption of firm homogeneity and accounting for export market entry costs, the gains from trade integration are higher than in conventional models with representative firms.     

Intra-school competition and student achievement

Within the economics of education literature, numerous studies have investigated the relationship between educational market competition and educational achievement. Educational market competition has been defined as either the availability of vouchers within a community or the number of schools or school districts within the relevant market structure. While these studies have shown that increases in inter-district competition result in increased student achievement, no studies, to our knowledge, have yet investigated the effect of intra-school competition on student achievement. Within this study, a measure of intra-school competition is developed and the findings indicate that increased intra-school competition leads to increased student achievement.