Exporting raises productivity in sub-Saharan African manufacturing firms

Proponents of trade liberalization argue that exporting helps firms to achieve higher productivity levels. This hypothesis is examined for a panel of manufacturing firms in nine African countries. The results indicate that exporters in these countries are more productive and, more importantly, exporters increase their productivity advantage after entry into the export market. While the first finding can be explained by selection-only the most productive firms engage in exporting-the latter cannot. The results are robust when unobserved productivity differences and self-selection into the export market are controlled for using different econometric methods. Scale economies are shown to be an important channel for the productivity advance. Credit constraints and contract enforcement problems prevent firms that only produce for the domestic market from fully exploiting scale economies.     

Export Premium,Self‐selection and Learning‐by‐Exporting: Evidence from Chinese Matched Firms

This study empirically focuses on examining the hypotheses of export premium (exporters are more productive than non‐exporters), selection‐into‐exporting (more productive firms are ones that tend to become exporters) and learning‐by‐exporting (new export market entrants have higher productivity growth than non‐exporters in the post‐entry period). The propensity score matching method is used to adjust for observable differences of firm characteristics between exporters and non‐exporters, allowing an adequate ‘like‐for‐like’ comparison. We also use the difference‐in‐difference matching estimator to capture the magnitude of different productivity growth between matched new export market entrants and non‐exporters in the post‐entry period up to two years. Drawing on 2,340 Chinese firms in the period 2000–02, we find evidence for export premium and self‐selection, and once the firm has entered the export market there is additional productivity growth from the learning effect, in particular in the second year after entry.     

Exports and Productivity: A Survey of the Evidence from Firm‐level Data

While the role of exports in promoting growth in general, and productivity in particular, has been investigated empirically using aggregate data for countries and industries for a long time, only recently have comprehensive longitudinal data at the firm level been used to look at the extent and causes of productivity differentials between exporters and their counterparts which sell on the domestic market only. This paper surveys the empirical strategies applied, and the results produced, in 54 microeconometric studies with data from 34 countries that were published between 1995 and 2006. Details aside, exporters are found to be more productive than non‐exporters, and the more productive firms self‐select into export markets, while exporting does not necessarily improve productivity.     

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.     

Pure Exporter: Theory and Evidence from China

This article provides the first evidence about pure exporters (i.e. firms exporting all of their output to the foreign market) – a phenomenon overlooked and cannot be explained in the existing literature. It then offers a theoretical analysis of the existence and behaviour of pure exporters. In particular, pure exporters arise when the export market is sufficiently large – a situation more likely to hold in developing countries as opposed to large developed countries, and their productivity levels are above those of nonexporters, but below those of firms having both domestic sales and export. These theoretical predictions are borne out in a data of Chinese manufacturing firms for the period of 1998–2005.     

Do exports generate higher productivity? Evidence from Slovenia

I use matched sampling techniques to analyze whether firms that start exporting become more productive, controlling for the self-selection into export markets. To this end, I use micro data of Slovenian manufacturing firms operating in the period 1994-2000. Overall I find that export entrants become more productive once they start exporting. The productivity gap between exporters and their domestic counterparts increases further over time. These results also hold at the industry level and are robust to other controls that may be associated with increased productivity, such as private ownership. Using information on the (firm-level) destination of exports, I find that the productivity gains are higher for firms exporting towards high income regions.     

Where Do Firms Export,How Much and Why?

The empirical finding that exporting firms are more productive on average than non‐exporters has provoked a large theoretical literature based on models such as Melitz ( 2003 ), where more productive firms are more likely to overcome costs associated with trade. This paper investigates how closely the productivity heterogeneity framework fits the data from a firm‐level survey that includes information on export destinations and firm characteristics such as productivity. We find a high degree of unpredictable idiosyncratic participation in export markets by firms and a relatively weak positive correlation between the extent of a firm's export market participation and its export sales. We find that a small number of standard gravity variables provide a close fit to the country‐level determinants of trade but that greater variation results in more difficulty in explaining firm‐specific factors driving exporting behaviour. We also illustrate some elements of the dynamics over time in firm exporting patterns by destination. We show that lagged exporting activity has a significant effect on a firm's current exporting profile.     

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.     

Do export status and export intensity increase firm performance?

This study examines the effects of export status and export intensity on the performance of firms in Ghana. Our measures of performance include productivity and profitability. Using the Regional Project on Enterprise Development (RPED) dataset covering the period 1991–2002, the results of this study indicate that export status and export intensity have positive effects on productivity, confirming the learning‐by‐exporting hypothesis. Competition on the international market exposes exporting firms to new technologies, and this has the potential of increasing their productivity. Thus, economic policy initiatives should be directed at encouraging firms to enter the export market. Existing exporters should also be motivated to intensify their exporting efforts by exporting more of their output to foreign markets. © 2011 Wiley Periodicals, Inc.     

Evaluating the Contribution of Exporting to UK Productivity Growth: Some Microeconomic Evidence

This study assesses the contribution of exporting activities to aggregate productivity growth in the UK for all market‐based sectors for the period 1996–2004, using a weighted FAME dataset. Based on decompositions of productivity growth, our findings suggest that, overall, exporting firms experience faster productivity growth than non‐exporting firms and therefore contribute more to national productivity growth. In addition, aggregate productivity for exporters benefits from a large contribution from ‘continuing’ firms improving their productivity, as well as exporters that have been taken‐over/merged or started‐up as new firms. In contrast, most of the TFP improvement for non‐exporters is attributable to lower productivity firms exiting, rather than from internal improvements or the productivity‐enhancing impact of new firms.     

Foreign Market Competition as a Determinant of Exporter Performance: Evidence from Slovenian Manufacturing Firms

Most studies on the link between exporting status and firm productivity find no evidence of learning‐by‐exporting, whereas self‐selection of more productive firms into exporting is most often confirmed. Furthermore, empirical tests of the learning‐by‐exporting hypothesis rarely rely on a specific learning mechanism and instead estimate very general tests of the effects of exporting on improvements of firm efficiency. Lack of explicit controls for specific learning mechanisms in turn biases the empirical estimates against finding the learning effects. Here I undertake a more targeted approach to learning‐by‐exporting by using data on Slovenian manufacturing enterprises between 1994 and 2002 to explore a specific channel for learning in the export markets. Using a variety of empirical tests, I show that competition in exporting markets serves as an added criterion in firm self‐selection as only the most productive and fastest growing firms choose to enter more competitive foreign markets. Once home‐market competition is explicitly controlled, a significant productivity adjustment effect of exporting firms in response to intensification of export market competition is revealed. Crucially, this provides tentative evidence of learning‐by‐exporting, which has so far been elusive in the relevant literature.     

生产率与出口企业市场进入次序的双向影响--来自中国工业企业的证据

本文以出口企业的市场进入次序为落脚点,利用2000－2006年中国海关数据库和中国工业企业数据库的海量匹配数据,对出口企业的市场进入次序与企业生产率的增速之间的关系进行实证分析。研究结果表明,高生产率企业更倾向于充当开拓者,而低生产率企业倾向于充当跟随者,这种自选择作用在制成品出口中得以彰显,但在初级产品和农产品出口中并不显著;短期内跟随者的生产率增速高于开拓者,但在长期开拓者的先发优势愈发显著,其生产率增速明显优于跟随者。     

Productivity Premia for German Manufacturing Firms Exporting to the Euro‐Area and Beyond: First Evidence from Robust Fixed Effects Estimations

This paper reports estimates of the productivity premium of German firms exporting to the Euro‐zone and beyond, controlling for unobserved time‐invariant firm‐specific effects. Furthermore, it tests for self‐selection of more productive firms into exporting beyond the Euro‐zone. The main contribution of the paper is to correct a serious flaw in hitherto published studies that ignore the potentially disastrous consequences of extreme observations, or outliers. The paper shows that estimates of the exporter productivity premium by destination are driven by a small share of outliers that comprises some five per cent of all firms. These outliers are identified by a recently developed highly robust estimator for models with fixed effects. Using a ‘clean’ sample without these outliers, the estimated productivity premium of firms that export to the Euro‐zone only is no longer statistically different from zero at a conventional error level, and the estimated premium of firms exporting beyond the Euro‐zone, too, over firms that serve the German market only is tiny. Furthermore, an ex‐ante differential that is statistically significant and large only shows up for enterprises that exported to the Euro‐zone already and start to export to countries outside the Euro‐zone. These conclusions differ considerably from those based on non‐robust standard regression analyses.     

A model of demand,productivity and foreign location decision among Taiwanese firms

We develop a theoretical framework to examine the relative importance of firm demand and productivity in firm decisions to export and where to locate foreign direct investments. The model shows that the equilibrium firm decision depends on product technology, consumer preference for product quality, fixed investment costs of establishing a foreign subsidiary, transportation costs and relative wages. Our empirical results confirm the predictions of the theoretical model. Firm-level demand and productivity components are important in explaining the decision to participate in foreign markets with their relative importance depending on the firm's organizational form (exports versus FDI) and the destination of the investments. In general, FDI firms are more productive than exporting firms regardless of FDI destinations. FDI firms also have a higher demand component than exporters and this demand component is stronger than productivity. Finally, among FDI firms, while those with a high demand index and productivity have a significantly higher propensity to invest in high-income countries, firm productivity is the sole determinant of firms undertaking FDI in low-income countries.     

Productivity and Learning‐by‐exporting: A Firm‐level Analysis of Indian Manufacturing

In this paper, we examine whether firms become productive by learning through exporting. To this end, we estimate the production function using microdata of Indian manufacturing firms operating in the period 1991–2001. In contrast to studies on developed countries, our results provide evidence that Indian manufacturing firms are experiencing a rise in productivity through entering export markets and thus experience the learning effect. We also find that there is a productivity rise prior to exporting. Therefore, our results also support the self‐selection mechanism for exporting.     

Indirect Exporters

Indirect exporters are defined as firms exporting through a trade intermediary. These firms have received rapidly expanding empirical and theoretical attention recently. I show that in Eastern Europe and Central Asia these firms do, as predicted by the theoretical literature, lie between domestic firms and direct exporters for a range of performance measures. Multi-product firms, despite their generally higher productivity, are shown to be more likely to use intermediaries than single-product firms, suggesting that “mixed exporting strategies” that use intermediaries are important for these firms. Analysis using a small panel subsample of the data suggests the sunk costs of indirect exporting are significantly lower than those for direct exporting, pointing to a role for intermediaries in “greasing the wheel” of entry to export markets.     

Exporting and Economic Performance: Firm‐level Evidence of Spanish Manufacturing

In a previous paper, Delgado, Fariñas and Ruano (2002) report TFP differences between exporters and non‐exporters on the basis of a sample of Spanish manufacturing firms. In this paper, we extend the previous analysis in three directions using a similar data set. First, we investigate additional economic performance differences between exporters and non‐exporters. Second, we measure TFP differences estimating production functions that control for unobserved heterogeneity and simultaneity bias. Third, we explore the self‐selection and learning‐by‐exporting hypothesis as explanations for the greater performance of exporters. With respect to the results, we confirm that many indicators of economic performance such as productivity, size, wages and innovation are greater in exporting firms. Furthermore, TFP differences between exporters and non‐exporters estimated with parametric methods are remarkably similar to those estimated using index numbers. Finally, performance differences and transition patterns between the export market and the domestic market indicate higher performance for entering exporters with respect to non‐exporters at the moment of entry. We find evidence of selection in the entry and the exit side of the export market. One of the basic results that we obtain indicates that after controlling for self‐selection, the productivity growth of entering exporters does not significantly change with respect to non‐exporters. As the evidence we find indicates no systematic changes in performance between non‐exporters and exporters after entry takes place, we do not confirm the learning‐by‐exporting hypothesis.     

A league of their own: services exporters – a developing country perspective

This paper provides a firm-level portrait of services exporters along with goods exporters in a developing country. Current findings of firm-level services trade literature suggest that the stylized facts of goods trade apply to services trade as well for a set of developed countries. This paper investigates if similar results hold for a developing country, Turkey, for the period 2003–2008. Most results lend support to the evidence found in the previous literature. However, the analysis of Turkish data shows that firms that export both goods and services are larger than those exporting goods or services only while multinationals that sell only goods are bigger than multinationals exporting both goods and services or those exporting only services.     

Differences among exporting firms based on their degree of internationalization

An overwhelming majority of the investigations of company export behavior have utilized data obtained from all types of firms in a sample. An alternative approach would involve disaggregating the sample into some meaningful groups and contrasting company characteristics across the subsamples of firms. This study attempts to delineate differences among exporting firms when firms are classified by their degree of internationalization. Three types of exporters are identified in light of the internationalization hypothesis: experimental exporters, active exporters, and committed exporters. These firms are then contrasted with each other with respect to measurable company characteristics, domestic market environment, nature of international business involvement, marketing policy aspects, and export market research practices. The analysis in the paper is based upon data gathered through personal interviews with the executives of 70 midwestern manufacturers. The study reveals significant differences among the three types of exporters and provides further insights into the export marketing behavior of firms.