Central to so many accounts of post-war Japan, the keiretsu corporate groups have never had economic substance. Conceived by Marxists committed to locating "domination" by "monopoly capital," they found an early audience among western scholars searching for evidence of culture-specific group...

Building on the current theory of industrial concentration, we analyze the relation between market size and product differentiation, and show how product differentiation impacts market share turbulence. Our basic results highlight that in markets where vertical product differentiation dominates,...

This paper develops an equilibrium model of vertical foreclosure with the choice of input specifications. In this model, vertical foreclosure occurs as the upstream division of the integrated firm makes a specialized input for its sister downstream division while it would, as an independent...

Agricultural research drives increases in agricultural productivity, and the number of private agricultural input firms has been declining. The empirical relationship between the number of firms doing applied biotechnology crop research and the amount of research output they produce is...

Agricultural research drives increases in agricultural productivity, and the number of private agricultural input firms has been declining. The empirical relationship between the number of firms doing applied biotechnology crop research and the amount of research output they produce is...

We show that the presumed incompatibility of R&D and competition in Spence (1984) is not fundamental, but hinges on a critical modeling choice. Specifically, we show that for a widely used class of R&D technology, that is, the functional form mapping R&D effort into cost reduction, the...

We conduct a regional analysis of the relationship between market concentration and price dynamics in the grocery retail sector, focusing on a sample of five categories of goods belonging to the 12 COICOP aggregation and on a panel of countries that includes Germany, Spain, Finland, Italy,...

The aim of the study is to estimate the level of competition and concentration in the Polish banking sector in 1997-2009 (prior the financial crisis and during the crisis). In this paper the Panzar and Rosse model (P-R) and the Lerner index (LI) have been used for the evaluation of competition....

The effects of mergers on the media marketplace have historically failed to live up to dire predictions. Mergers are often a response to technological upheaval and turbulence in the media industry and firms should be allowed to experiment with such alternative business models with the intent on...

Data for the year 1980 reveal seller concentration to be high for domestic sales and exports, but large sellers in the domestic market often fail to rank among the largest exporters. Foreign-owned firms and joint ventures account for more than a quarter of sales in the domestic market and more...