A model of firm heterogeneity in factor intensities and international trade

Empirical evidence suggests that exporters are, in addition to being more productive, significantly more skilled‐labour intensive than non‐exporters. In a setting that captures both these features, we show that the firm selection induced by trade liberalization works along two dimensions. First, export growth increases competition for skilled labour. This leads to the exit of some of the skilled‐labour intensive firms, while benefitting unskilled‐labour intensive ones. Second, within the group of firms with the same factor intensities, the reallocation of factors is towards the exporters. We show that the increased competition for skilled labour dampens the positive effect of trade liberalization on sector‐wide TFP and real income.     

Firm exit,technological progress and trade

The dynamics of export market exit and firm closure have found limited attention in the new heterogeneous-firms trade literature. In fact, several of the predictions on firm survival and exit stemming from this new class of models are at odds with the stylized facts. Empirically, higher productivity firms survive longer, most firm closures are young firms, higher productivity exporters are more likely to continue to export compared to less productive exporters and market exits as well as firm closures are typically preceded by periods of contracting market shares. The present paper shows that the simple inclusion of exogenous economy wide technological progress into the standard Melitz (2003) model generates a tractable dynamic framework that generates endogenous exit decisions of firms in line with the stylized facts. Furthermore, we derive the effects of faster technological progress and trade liberalization on export market exit and firm closure.     

Analyzing the effects of the Regional Comprehensive Economic Partnership on FDI in a CGE framework with firm heterogeneity

The Regional Comprehensive Economic Partnership (RCEP) is a free trade agreement (FTA) that is currently under negotiation among China and 15 other Asian countries. It is one of several potential mega-regional FTAs in the Asia-Pacific region. In this paper we investigate the potential effect of RCEP on foreign direct investment (FDI) with a focus on China using an innovative computable general equilibrium (CGE) model. The model is built on the theory of firm heterogeneity extended to FDI. The framework is able to capture FDI increases along both the intensive and extensive margins. Liberalization under RCEP is simulated as impacting on FDI both directly through FDI liberalization and indirectly through trade liberalization. Our simulation results suggest that RCEP would encourage significant increases in FDI to China through both these pathways. While competition from imports drives out the least productive foreign owned firms, export expansion of firms using FDI will lead to an overall increase in foreign investment. In addition, the facilitation of trade in intermediate goods tends to promote vertical FDI. The direct FDI effect from investment liberalization will evidently promote FDI from partners. Projected economic gains to China from RCEP are in the range of US$103–214 billion, or 1.1–2.2% of GDP.     

Trade and firm heterogeneity in a Schumpeterian model of growth

The present paper explores the effect of trade liberalization on the level of productivity as well as the rate of productivity growth in an R&D-based model with heterogeneous firms. We introduce new and plausible features that are absent in existing studies. First, technical progress takes the form of continual quality improvement of products over time. Second, firm entry and exit are endogenously determined due to creative destruction of products. In this framework, we demonstrate that a lower transport cost or export sunk cost unambiguously reallocates resources to R&D and top-quality product industries from low-quality good industries. This means that trade liberalization increases the rate of technical progress as well as the level of manufacturing productivity. These results are found to be robust in an extended model with population growth without scale effects.     

A Simple Theory of Trade,Finance and Firm Dynamics

A stylized monopolistic competition model of international trade is proposed where firms differ with respect to the expected economic lifetime of their innovations. Upon entry, they receive a commonly observed signal which is updated over time. Jointly with partial irreversibility of investment, this generates heterogeneity in effective discount rates and, thus, in the cost of finance. In line with evidence, the model predicts a negative correlation between firms' financing costs and their age. Over a firm's life cycle, per period net profits and the export participation probability grow. Exporters are less likely to exit than purely domestic firms. Belief updating entails excessive financing of incumbents relative to entrants and too much exporting. Asymptotically, trade liberalization reduces overall general equilibrium exit rates, but it does not necessarily increase welfare. With multiple asymmetric export markets, firms gradually expand their market coverage and total sales. A confidence crisis modeled by belief reversion causes an over‐proportional decrease in exports, thereby offering a novel interpretation of the trade slump in 2008/09.     

Trade liberalization and Firms’ export performance in China: Theory and evidence

The focus of the literature surrounding trade liberalization has recently shifted from trade liberalization in imported final goods to studying the effects of trade liberalization in imported intermediate inputs. This emphasis fits very well the trade liberalization experience of China following its accession to the WTO in 2001. In this paper, we build a multi-sector heterogenous-firm model with trade in both intermediate goods and final goods, and we ask: How do final-goods producers respond to trade liberalization in imported inputs? Do they respond differently across sectors? How do firms respond differently to trade liberalization in imported-outputs instead? We separate the total effect of trade liberalization into those caused by inter-sectoral resource allocation (IRA) and by within-sector selection of firms according to productivity (which we call Melitz selection effect). It is the IRA effect that gives rise to differential impacts of trade liberalization in different sectors. These impacts include changes in the probability of entry into the export market, the fraction of firms that export and the share of export revenue. To test our hypotheses, we carry out both quantitative analysis and empirical analysis by using Chinese firm-level data. The results are consistent with our theoretical predictions.     

国外异质性厂商贸易理论研究综述

异质性厂商贸易理论代表了国际贸易理论最新发展趋势,研究的是微观经济主体--厂商的贸易和投资行为与自身特征的关系.厂商的市场进入方式与其生产率水平是相对应的,出口和贸易自由化能够提高行业生产率,汇率变化、贸易政策和产业集聚对厂商出口具有重要的影响,厂商进入出口市场前后存在自我选择效应和出口中学习效应,这两种效应都导致厂商生产率提高,最终生产率最高的厂商将以对外直接投资的方式进入国际市场.     

Trade and productivity: Self-selection or learning-by-exporting in India

Recent literature tried to explain the Indian growth miracle in different ways, ranging from trade liberalization to industrial reforms. Using data on Indian manufacturing firms, this paper analyzes the relationship between firm's productivity and export market participation during 1991–2004. While it provides evidence of the self-selection hypothesis by showing that more productive firms become exporters, the results do not show that entry into export markets enhances productivity. The paper examines the explanation of self selection hypothesis for total factor productivity differences across 33,510 exporting and non-exporting firms. It uses propensity score matching to test the learning-by-exporting hypothesis. In line with the prediction of recent heterogeneous firm models of international trade, the main finding of the paper is: more productive firms become exporters but it is not the case that learning by exporting is a channel fuelling growth in Indian manufacturing.     

Cross‐border Mergers and Greenfield Foreign Direct Investment

This paper presents a model of international trade and foreign direct investment (FDI), where FDI is comprised of greenfield FDI and mergers and acquisitions (M&A). In a monopolistically competitive environment merging firms do not reduce competition. Mergers are motivated by efficiency gains and transfer of technology. Following empirical evidence, greenfield investors are modeled as more productive than M&A firms, which are in turn more productive than exporters. The model has two symmetric countries and generates two‐way flows of both M&A and greenfield FDI. Trade liberalization makes more firms choose greenfield FDI over M&A and leads to lower productivity and welfare.     

"新新贸易理论"的思想脉络及其发展

新新贸易理论将企业异质性成功的引入到国际贸易模型中,从微观层面解释了贸易的发生及影响,从而开拓了国际贸易研究的新领域。新新贸易理论解释了为什么好的企业做国际贸易,而较次的企业做国内贸易这一现象,该理论认为,自由贸易可以提高产业生产率水平和社会福利,所以在政策上应该促进自由贸易而不是贸易保护。     

Inequality,public good provision and the composition of trade

This paper investigates the effect of trade liberalization on the provision of public goods and shows that inequality also plays a vital role here. Public goods help enhance the productivity of firms, lower prices and raise profitability. The provision of public goods has different effects in closed and open economies. In an open economy, the impact of productive spending on increasing profit is stronger. Consequently, the opening up of the economy shifts the benefits of productive public goods from consumers to firms. As the median voters’, share of the firm’s profit rises, public goods become more appealing and flourish. Consequently, the manufacturing export is boosted by a rise in productivity.     

Trade Policy and Productivity Growth in OECD Manufacturing *

Trade liberalization may promote economic growth in a number of ways, including by accelerating the rate of technological change. Firms that face more intense import competition may be spurred to greater rates of innovation; firms which export may absorb new technologies through their contact with international markets. This paper examines evidence on trade policy and productivity growth for a sample of thirteen OECD countries and including eighteen manufacturing sectors, using data primarily from the 1980s. Within individual sectors, there are strong productivity convergence effects within the OECD. After controlling for convergence, we find a positive association between high rates of productivity growth and low tariffs, and between high productivity growth and strong export performance. We found no particular association between high productivity growth and import penetration. The results are consistent with the possibility of positive linkages between trade liberalization and accelerated productivity growth. [F1, O4]     

Trade liberalization and markups: Micro evidence from China

This paper presents evidence from highly disaggregated Chinese firm-product data that, given productivity, input tariff reductions induce an incumbent importer/exporter to increase product markups. We further investigate empirically the mechanisms underlying this trade liberalization effect, and find that input tariff reductions decrease marginal costs, and their effects on markup adjustments are more profound among firms with higher import dependence. Moreover, we exploit unique features of Chinese data by comparing results for two trade regimes: ordinary trade (wherein firms pay import tariffs to import) and processing trade (wherein firms are not subject to import tariffs). While the aforementioned trade liberalization effects and mechanisms only apply to ordinary trade, processing trade samples are used in a placebo test. The paper also shows that more productive firms charge higher markups for products. All these findings are robust to alternative markup measures including one estimate using physical-quantity output data, different production function specifications, a subsample consisting only of pure exporters, and estimations based on our theoretical derivations.     

Financing constraints,firm dynamics,export decisions,and aggregate productivity

We present a dynamic model in which firms accumulate wealth to avoid bankruptcy and to overcome financing constraints that affect their fixed operational costs and the costs of becoming an exporter. Financing constraints not only affect firms directly when they are binding, but also indirectly, through precautionary saving and the selection of firms via entry and exit of the domestic and export markets. We calibrate the model and test some of its predictions using a rich dataset of Italian manufacturing firms for the period 1995–2003. Financing constraints reduce the aggregate productivity gains induced by trade liberalization by 25 percent by distorting the incentives of the most productive firms to self-select into exporting.     

Skill‐biased heterogeneous firms,trade liberalization and the skill premium

We propose a theory that rising globalization and rising wage inequality are related because trade liberalization raises the demand facing highly competitive skill‐intensive firms. In our model, only the lowest‐cost firms participate in the global economy exactly along the lines of Melitz ( 2003 ). In addition to differing in their productivity, firms differ in their skill intensity. We model skill‐biased technology as a correlation between skill intensity and technological acumen, and we estimate this correlation to be large using firm‐level data from Chile in 1995. A fall in trade costs leads to both greater trade volumes and an increase in the relative demand for skill, as the lowest‐cost/most‐skilled firms expand to serve the export market while less skill‐intensive non‐exporters retrench in the face of increased import competition. This mechanism works regardless of factor endowment differences, so we provide an explanation for why globalization and wage inequality move together in both skill‐abundant and skill‐scarce countries. In our model countries are net exporters of the services of their abundant factor, but there are no Stolper‐Samuelson effects because import competition affects all domestic firms equally.     

Cross-Country Externalities of Trade and FDI Liberalization

We develop a three-country heterogeneous-firm model and show that FDI liberalization in one foreign country (F1) results in the following: (i) some firms from the home country switch from export to FDI in F1; (ii) skilled labor’s wage rate drops in the home country; (iii) wage inequality between the skilled and unskilled labor decreases; and (iv) some firms from the home country switch from FDI to export to another foreign country (F2). The effects from trade liberalization are just the opposite, but the effects from education improvement are qualitatively the same as FDI liberalization. The cross-country externalities work through the domestic labor market.     

Imperfect Competition,Returns To Scale and Productivity Growth In Australian Manufacturing: A Smooth Transition Approach To Trade Liberalisation

This Paper examines the relationship between trade liberalization and productivity growth for Australian manufacturing. An imperfect competition, non-CRS, smooth transition empirical framework is employed for analysis. GMM estimates of the logistic smooth transition model imply that trade reform impacts take approximately four years to complete, but do not occur over the same time period for all industries. In response to trade reforms, for most industries a significant improvement in productivity is estimated, these improvements are associated with lower mark-ups and falling scale parameters. A minority of industries however, experienced no change or falling productivity growth in response to reforms, these industries tended to have the highest absolute protection levels. [D24, F12, C52, L60]     

Does services liberalization affect manufacturing firms’ export performance? Evidence from India

This paper investigates the relationship between the reform of energy, telecommunications and transport services in India in the mid-1990s and manufacturing firms’ export performance. The empirical analysis relies on exogenous indicators of regulation of Indian services sectors and detailed firm-level data from India in the 1994–2004 period. I find that the reform of upstream services sector has increased the probability of exporting and export sales shares of firms producing in downstream manufacturing industries. The results suggest that the effect of services liberalization on manufacturing firms’ export performance is stronger for initially more productive firms. These empirical findings are robust to alternative econometric specifications that control for other reforms, industry, firm characteristics and that deal with potential reverse causality concerns.     

Import competition and firm refocusing

Abstract Recent theoretical work predicts a new margin of firm adjustment to trade liberalization; that is, multi‐product firms alter their product mix to focus on their core competencies in response to trade liberalization. Using detailed product data from U.S. public firms, I find strong empirical support for this prediction. Specifically, import competition leads multi‐product firms to drop peripheral products to refocus on core production. The weaker the linkages that a peripheral product shares with the core (as measured by the extent of joint sales, joint procurement, joint production, and joint sectorship), the more likely the peripheral product is to be divested in response to import competition.     

Innovation,productivity and exports: the case of Hungary

This paper estimates the relationship between innovation and firm performance by using Community Innovation Survey data for Hungary. It exploits the possibility of linking the innovation data to ownership and disaggregated trade data. Innovative firms are more productive, more likely to trade and export more products to more countries. We also test for differences in innovative behaviour in high- and low-tech industries, and study whether domestic and foreign firms differ in this respect.