Market Integration and Market Concentration in Horizontally Differentiated Industries

This paper derives the impact of market integration on equilibrium firm size and market concentration in horizontally differentiated industries. We show that market concentration (measured by the number of firms) can rise as a consequence of market integration if firms engage in R&D competition. We also demonstrate that whether concentration occurs or not depends on the R&D production function and on consumer preferences. This result implies that the welfare effects of market integration are not unambiguously positive.International Trade

International trade and retailing

The New Trade Theory predicts that international trade lowers prices for consumers and expands the choices available to them. This study shows that both predictions may no longer hold once adjustments in the retail sector are taken into account. I present a new model of retailing in general equilibrium and explore its implications for a number of different shocks. The results demonstrate that retail assortments may remain constant if consumers have a low preference for diversity, and that consumer prices can even rise if the retail density is sufficiently low. --International Trade,Retailing,Diversity,Market Structure,Welfare,Monopolistic Competition

International Trade and Retailing

The New Trade Theory predicts that international trade lowers prices for consumers and expands the choices available to them. This study shows that both predictions may no longer hold once adjustments in the retail sector are taken into account. I present a new model of retailing in general equilibrium and explore its implications for a number of different shocks. The results demonstrate that retail assortments may remain constant if consumers have a low preference for diversity, and that consumer prices can even rise if the retail density is sufficiently low.international trade, retailing, diversity, market structure, welfare, monopolistic competition

Winners and losers from an international investment agreement

Recent attempts at reaching an international investment agreement have been met with considerable opposition and failed. An important reason for this failure is the diverging interests between the parties involved. The present paper focuses on the interests of host countries, with difference in market size as the source of conflict. We analyse the welfare effects of an international investment agreement as a function of the intensity of technological spillovers, the technology gap between the investor and host country firms, intra-regional trade costs, and the difference in market size.

Tax Competition for Heterogeneous Firms with Endogenous Entry: The Case of Heterogeneous Fixed Costs

This paper models tax competition for mobile firms that are differentiated by the amount of labor needed to cover fixed costs. Because tax competition affects the distribution of firms, it affects both relative equilibrium wages across countries and equilibrium prices. These in turn influence the equilibrium number of firms. From the social planner's perspective, optimal tax rates are harmonized, providing the optimal number of firms, and set such that income is efficiently distributed between private and public consumption. As is common in tax competition models, in the Nash equilibrium tax rates are inefficiently low, yielding underprovision of public goods. Furthermore, there exist a variety of situations in which equilibrium tax rates differ. As a result, too many firms enter the market as governments compete to be the low-tax, high-wage country. This illustrates a new distortion from tax competition and provides an additional benefit from tax harmonization.Tax Competition, Foreign Direct Investment, Tax Harmonization

Tax Competition for Heterogeneous Firms with Endogenous Entry:The Case of Heterogeneous Fixed Costs

This paper models tax competition for mobile firms that are differentiated by the amount of labor needed to cover fixed costs. Because tax competition affects the distribution of firms, it affects both relative equilibrium wages across countries and equilibrium prices. These in turn influence the equilibrium number of firms. From the social planner's perspective, optimal tax rates are harmonized, providing the optimal number of firms, and set such that income is efficiently distributed between private and public consumption. As is common in tax competition models, in the Nash equilibrium tax rates are inefficiently low, yielding underprovision of public goods. Furthermore, there exist a variety of situations in which equilibrium tax rates differ. As a result, too many firms enter the market as governments compete to be the low-tax, high-wage country. This illustrates a new distortion from tax competition and provides an additional benefit from tax harmonization.Tax Competition, Foreign Direct Investment, Tax Harmonization

Tax Competition for Heterogeneous Firms with Endogenous Entry

This paper models tax competition for mobile firms that are differentiated by the amount of labor needed to cover fixed costs. Because tax competition affects the distribution of firms, it affects both relative equilibrium wages across countries and equilibrium prices. These in turn influence the equilibrium number of firms. From the social planner's perspective, optimal tax rates are harmonized, providing the optimal number of firms, and set such that income is efficiently distributed between private and public consumption. As is common in tax competition models, in the Nash equilibrium tax rates are inefficiently low, yielding underprovision of public goods. Furthermore, there exist a variety of situations in which equilibrium tax rates differ. As a result, too many firms enter the market as governments compete to be the low-tax, high-wage country. This illustrates a new distortion from tax competition and provides an additional benefit from tax harmonization.Tax Competition, Foreign Direct Investment, Tax Harmonization

Tax Competition for Heterogeneous Firms with Endogenous Entry

This paper models tax competition for mobile firms that are differentiated by the amount of labor needed to cover fixed costs. Because tax competition affects the distribution of firms, it affects both relative equilibrium wages across countries and equilibrium prices. These in turn influence the equilibrium number of firms. From the social planner's perspective, optimal tax rates are harmonized, providing the optimal number of firms, and set such that income is efficiently distributed between private and public consumption. As is common in tax competition models, in the Nash equilibrium tax rates are inefficiently low, yielding underprovision of public goods. Furthermore, there exist a variety of situations in which equilibrium tax rates differ. As a result, too many firms enter the market as governments compete to be the low-tax, high-wage country. This illustrates a new distortion from tax competition and provides an additional benefit from tax harmonization.Tax Competition, Foreign Direct Investment, Tax Harmonization

Multi-Product Offshoring

In this paper, we incorporate offshoring of labor-intensive goods in a model with multi-product firms, and explore its implications in partial and general oligopolistic equilibrium. We identify important aspects of this phenomenon and argue that improvements in offshoring opportunities can affect the geographic organization of a firm and its product range. Multi-product firms internalize supply linkages (flexible manufacturing) and demand linkages (cannibalization effect). In partial equilibrium, we find that more products are produced offshore on a larger scale and firms expand their product range with better prospects for offshoring. We identify the cannibalization effect as an important transmission mechanism within multi-product firms and show that the latter effect hits domestic labor demand in addition to the well-known relocation effect. Interestingly in general equilibrium these effects lead to adjustments in domestic factor prices and may cause a partial re-relocation of product lines

CREDIT CONSTRAINTS, ENDOGENOUS INNOVATIONS, AND PRICE SETTING IN INTERNATIONAL TRADE

This article analyzes the role of credit frictions in a trade model where producers differ in their capabilities to conduct process and quality innovations and require external finance for investments. Accounting for cost-based and quality-based sorting of firms in a unified framework allows us to demonstrate that the reactions of prices and commonly used productivity measures do not necessarily reflect welfare implications. Credit frictions lead to distortions through aggravated access to finance and endogenous price adjustments so that the responses of quantity-based and revenue-based productivity differ substantially. In counterfactual scenarios, we show that these differential effects are quantitatively important