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The purpose of this paper is to emphasize the importance of product quality in differentiated-products markets in determining the structure of competition among firms.

First, two distinct models of firm heterogeneity are considered as two possible structures for firms’ competition: “price competition” and “quality competition.” Then, the author exploits the bilateral trade data of the world’s 83 largest countries in order to examine a link between the empirical findings and the theoretical models.

The empirical findings support a model of “quality competition” rather than “price competition,” in which firms in a country with a comparative advantage in a given product tend to improve their product quality as opposed to lowering production costs, so they compete on the quality-adjusted price.

This paper used product-level data to examine the spatial pattern of the average export unit value of a product, which is able to answer the question of whether an industry is involved with quality competition. The product-level data used in this study, however, are not ideally suitable for exploring the predictions of a heterogeneous firms’ trade model.

To the best of the author’s knowledge, this is the first paper that investigates a relationship between the country-product pair of comparative advantages and firms’ self-selection behavior in the product-level data to shed light on the role of product quality in determining the structure of firms’ competition.

The Korean manufacturing sector has undergone structural changes in a transition from labor- to capital-intensive industries. These changes seem to be relevant to the weakening of the export effect on employment that began in 1990. In light of the importance of exports in the Korean labor market, the purpose of this paper is to shed light on the primary reasons why export growth does not lead to sufficient job creation as it did in the past.

The authors first use the growth accounting approach to show that the weakening of the linkage between exports and employment is closely related to the composition of export products, which has changed toward being more labor-saving. An empirical analysis (i.e. first difference A-B generalized method of moments estimator) on the employment effect of exports confirms that as the capital-intensity of exports increases employment effect decreases.

The main findings of the study can be summarized as follows. First, the reduction in the export effect on exports is highly correlated with changes in the composition of export products. Second, an increase in exports leads to an increase in manufacturing jobs, and the export elasticity of employment decreases as capital-intensity increases. Third, the export elasticity of employment tends to be higher when the export proportion of SMEs’ products is larger.

Despite the many literatures on the link between exports and employment, there is no consensus on this topic. However, it is generally agreed that the employment effect of exports has been considerably weakened, compared to that of the past, at least in Korea. Nevertheless, few studies attempt to address why this trend has occurred. In this paper, we focus on the structural factors that are the major cause of the weakening of the virtuous cycle between exports and employment. This allows us to provide valuable information to policy makers who are concerned with developing export policies that are related to effective job creation.

This paper aims to investigate how the gap between a multinational enterprise’s (MNE) productivity and that of its competitor determines the utilization of expatriate managers in its foreign subsidiaries.

The authors first develop a formal analytical model where expatriate managers are relatively more reliable and expensive while local managers are prone to job-hopping. The authors then test the predictions of the analytical model using subsidiary-level data of Korean MNEs.

The findings show a positive relationship between the productivity gap and the share of expatriate managers in a foreign subsidiary. The empirical findings also show that the job position (middle versus top managers) is another key determinant of the utilization of expatriate managers.

The results of this paper are consistent with the literature that finds that MNEs choose a governance structure that minimizes the hazard of opportunism in their subsidiaries, yet the paper reveals a novel aspect of the determinants of expatriate utilization.