Significant Feedbacks in Firm Growth and Market Structure

There are some markets where the growth of firms are held to be subject to diminishing returns, or negative feedbacks; and there are other markets where firm growth is believed to be subject to increasing returns, or positive feedbacks. A long run tendency towards monopoly might be expected in this latter market type, as opposed to a tendency towards relative equality of size shares in the former. It would be useful to draw inferences about the nature of the feedback process from observed market shares and concentration. We motivate and develop a test for feedbacks in firm growth under the null hypothesis that there are none. We use the equivalence between an urn model of the no-feedback process and the asymptotic distribution of sums of ordered intervals in the random division of the unit interval. In the empirical application for the United States, we find that most markets are subject to significant positive feedbacks.Firm growth, urn models, feedback process, size distribution, concentration ratio

Growth Response to Competitive Shocks: Market Structure Dynamics Under Liberalisation - the Case of India

Liberalisation transforms market structures through the behavioural responses of incumbent firms and entrants, large firms and small, to enhanced freedom of choice. Change in market share volatility, and change in the effective agility of small and large firms underpin changes in market structure. We analyse these processes for Indian manufacturing industries over the 18-year period from 1980, spanning the domestic liberalisation of 1985 and the more comprehensive reforms of 1991, using a data set of large and medium firms in 83 industries. We find that while market structures themselves appeared to change little, turbulence in market shares, as well as the way growth is related to size responded markedly, differing in direction and magnitude, depending on whether the liberalisation was partial and domestic, or comprehensive. We find that they tended to offset each other, leading to little visible change in market structure itself. We also find that while drivers of market structure traditionally recognised in industrial organisation studies had significant impacts on both components of concentration change, their dynamics are captured very well by a parsimonious model that has just the announcement effects - the reform dates.Liberalisation, Competitive Shocks, Firm growth, Turbulence, Market structure, India

Strategy Choices of Firms and Market Structure

This paper suggests a new approach to the empirical analysis of market structure. Market concentration is an aspect of distribution of market shares of firms, and market shares are best modelled at the firm level, bringing into play strategy choices made by firms. It follows that a useful approach to explaining concentration would be a two stage one: to estimate firm size or market shares as a function of firm level determinants, and to use the information in these estimates to assess the relative contributions of firm characteristics to concentration. The method is illustrated by application to selected Polish manufacturing industries in the early transition period.Market concentration; Firm Strategy; Transition; Poland

One Market, One Money, One Price?

The introduction of the euro was intended to integrate markets within Europe further, after the implementation of the 1992 Single Market Project. We examine the extent to which this objective has been achieved, by examining the degree of price dispersion between countries in the euro zone, compared to a control group of EU countries outside the euro zone. We also establish the role of exchange rate risk in hampering arbitrage by estimating the euro effect for subgroups within the euro zone, utilizing differences among EU countries in participation in the Exchange Rate Mechanism. Our results, in contrast with previous empirical research, suggest robustly that the euro has had a significant integrating effect.

One Market, One Money, One Price?

The introduction of the euro was intended to integrate markets within Europe further, after the implementation of the 1992 Single Market Project. We examine the extent to which this objective has been achieved, by examining the degree of price dispersion between countries in the euro zone, compared to a control group of EU countries outside the euro zone. We also establish the role of exchange rate risk in hampering arbitrage by estimating the euro effect for subgroups within the euro zone, utilizing differences among EU countries in participation in the Exchange Rate Mechanism. Our results, in contrast with previous empirical research, suggest robustly that the euro has had a significant integrating effect

One Market, One Money, One Price?

The introduction of the euro was intended to integrate markets within Europe further, after the implementation of the 1992 Single Market Project. We examine the extent to which this objective has been achieved, by examining the degree of price dispersion between countries in the euro zone, compared to a control group of EU countries outside the euro zone. We also establish the role of exchange rate risk in hampering arbitrage by estimating the euro effect for subgroups within the euro zone, utilizing differences among EU countries in participation in the Exchange Rate Mechanism. Our results, in contrast with previous empirical research, suggest robustly that the euro has had a significant integrating effect