Andrew B. Bernard

Plants and Productivity in International Trade

We reconcile international trade theory with findings of enormous plant-level heterogeneity in exporting and productivity. Our model extends basic Ricardian theory to accommodate many countries, geographic barriers, and imperfect competition. Fitting the model to bilateral trade among the United States and its 46 major trade partners, we see how well it can explain basic facts about U.S. plants: (i) productivity dispersion, (ii) the productivity advantage of exporters, (iii) the small fraction who export, (iv) the small fraction of revenues from exporting among those that do, and (v) the much larger size of exporters. We pick up all these basic qualitative features, and go quite far in matching them quantitatively. We examine counterfactuals to assess the impact of various global shifts on productivity, plant entry and exit, and labor turnover in U.S. manufacturing.

Why some firms export

This paper presents a dynamic model of the export decision by a profit-maximizing firm. Using a panel of U.S. manufacturing plants, we test for the role of plant characteristics, spillovers from neighboring exporters, entry costs and government export promotion expenditures. Entry and exit in the export market by U.S. plants is substantial, past exporters are apt to reenter, and plants are likely to export in consecutive years. However, we find that entry costs are significant and spillovers from the export activity of other plants negligible. State export promotion expenditures have no significant effect on the probability of exporting. Plant characteristics, especially those indicative of past success, strongly increase the probability of exporting as do favorable exchange rate shocks.

Interpreting Tests of the Convergence Hypothesis

This paper provides a framework for understanding the cross- section and time series approaches which have been used to test the convergence hypothesis. First, we present two definitions of convergence which capture the implications of the neoclassical growth model for the relationship between current and future cross-country output differences. Second, we identify how the cross-section and time series approaches relate to these definitions. Cross-section tests are shown to be associated with a weaker notion of convergence than time series tests. Third, we show how these alternative approaches make different assumptions on whether the data are well characterized by a limiting distribution. As a result, the choice of an appropriate testing framework is shown to depend on both the specific null and alternative hypotheses under consideration as well as on the initial conditions characterizing the data being studied.

Exports and Success in German Manufacturing

Exports and Success in German Manufacturing. - While Germany has a very open, export-oriented manufacturing sector, there has been little research on the role of exporting in German firms’ performance. This paper documents the significant differences between exporters and non-exporters and attempts to identify the sources of these disparities. Exporters are much larger, more capital-intensive, and more productive than non-exporters. However, the bulk of the evidence suggests that these performance characteristics predate the entry into export markets. The authors find no positive effects on employment, wage or productivity growth after entry. The authors’ results provide evidence that success leads to exporting rather than the reverse.ZusammenfassungExporte und Erfolg der deutschen Industrie. - Obwohl der deutsche gewerbliche Sektor sehr offen und exportorientiert ist, hat es wenige Untersuchungen über die Rolle des Exports bei den Erfolgen der deutschen Firmen gegeben. Die Verfasser belegen die signifikanten Unterschiede zwischen Exporteuren und Nicht-Exporteuren und versuchen, die Ursachen für diese Unterschiede zu ermitteln. Exportierende Firmen sind viel größer, kapitalintensiver und produktiver als nichtexportierende Firmen. Allerdings zeigt sich, daß diese Erfolgsmerkmale schon vor dem Eindringen in die Exportmärkte bestanden. Nach dem Eindringen stellen die Verfasser keine positiven Wirkungen auf die Beschäftigung, die Löhne oder das Produktivitätswachstum fest. Ihre Ergebnisse deuten darauf hin, daß Erfolg zum Export führt und nicht umgekehrt.

Survival of the Best Fit: Exposure to Low-Wage Countries and the (Uneven) Growth of U.S. Manufacturing Plants

This paper examines the role of international trade in the reallocation of U.S. manufacturing activity within and across industries from 1977 to 1997. It introduces a new measure of industry exposure to international trade, motivated by the Heckscher-Ohlin model, which focuses on where imports originate rather than their overall level. Results demonstrate that plant survival as well as output and employment growth are negatively associated with the share of industry imports sourced from the world ?s lowest-wage countries. Within industries, activity is reallocated towards capital- intensive plants. Plants are also more likely to alter their product mix (i.e. switch industries) in response to trade with low-wage countries. Plants altering their product mix switch to industries that are more capital and skill- intensive.

Productivity Across Industries and Countries: Time Series Theory and Evidence

The authors examine whether convergence in aggregate productivity is also occurring at the industry level in fourteen OECD countries from 1970 to 1987. Using both cross-section and time-series methods, they find convergence in some sectors, such as services. However, surprisingly, the authors find that convergence does not hold for the manufacturing sector. Decomposing aggregate convergence into industry productivity gains and changing sectoral shares of output, they find the service sector to be responsible for the bulk of cross-country convergence to the United States. The authors develop a new result on the asymptotic normality of panel unit root estimators to formally test within-sector convergence. Copyright 1996 by MIT Press.

EXPORTERS, SKILL UPGRADING AND THE WAGE GAP*

This paper examines plant level evidence on the increase in demand for non-production workers in U.S. manufacturing during the 1980s. The major finding is that increases in employment at exporting plants contribute heavily to the observed increase in relative demand for skilled labor in manufacturing during the period. Exporters account for almost all of the increase in the wage gap between high and low-skilled workers. Tests of the competing theories with plant level data show that demand changes associated with increased exports are strongly associated with the wage gap increases. Increases in plant technology are determinants of within plant skill-upgrading but not of the aggregate wage gap rise.

Export Entry and Exit by German Firms

Export Entry and Exit by German Firms. — While exports have played an important role in German business cycles, little is known about the export supply response of German firms. This paper presents a dynamic model of the export decision by a profit-maximizing firm. Using a panel of German manufacturing plants, we test for the role of plant characteristics and sunk costs in the entry decision. We find evidence for substantial sunk costs: exporting today by a plant increases the probability by 50 percent that the plant will export tomorrow. This advantage depreciates quickly, falling by two-thirds in a year. The authors also find evidence that plant success, as measured by size and productivity, increases the likelihood of exporting.

Importers, Exporters and Multinationals: A Portrait of Firms in the U.S. that Trade Goods

This paper provides an integrated view of globally engaged U.S. firms by exploring a newly developed dataset that links U.S. international trade transactions to longitudinal data on U.S. enterprises. These data permit examination of a number of new dimensions of firm activity, including how many products firms trade, how many countries firms trade with, the characteristics of those countries, the concentration of trade across firms, whether firms transact at arms length or with related parties, and whether firms import as well as export. Firms that trade goods play an important role in the U.S., employing more than a third of the U.S. workforce. We find that the most globally engaged U.S. firms, i.e. those that both export to and import from related parties, dominate U.S. trade flows and employment at trading firms. We also find that firms that begin trading between 1993 and 2000 experience especially rapid employment growth and are a major force in overall job creation.

Firm Structure, Multinationals, and Manufacturing Plant Deaths

Plant shutdowns shape industry productivity, the dynamics of employment, and industrial restructuring. Plant closures account for more than half of gross job destruction in US manufacturing. This paper examines the effects of firm structure on US manufacturing plant closures. Plants belonging to multi-plant firms and those owned by US multinationals are less likely to exit. However, the superior survival chances are due to the characteristics of the plants rather than the nature of the firms. Controlling for plant and industry attributes, we find that plants owned by multi-unit firms and US multinationals are much more likely to close.