• Publications
  • Influence
Vertical integration and firm boundaries : the evidence
Since Ronald H. Coase's (1937) seminal paper, a rich set of theories has been developed that deal with firm boundaries in vertical or input–output structures. In the last twenty-five years, empiricalExpand
  • 653
  • 35
  • PDF
Contracting in space: An application of spatial statistics to discrete-choice models
Abstract We develop tests for spatial-error correlation and methods of estimation in the presence of such correlation for discrete-choice models. The tests, which are based on the notion of aExpand
  • 357
  • 33
Spatial Price Competition: A Semiparametric Approach
We investigate the nature of price competition among firms that produce differentiated products and compete in markets that are limited in extent. We propose an instrumental variables seriesExpand
  • 473
  • 27
Trends in natural-resource commodity prices: An analysis of the time domain
Abstract This paper attempts to reconcile the theoretical predictions of increasing real prices for nonrenewable natural-resource commodities obtained from Hotelling-style models with the empiricalExpand
  • 349
  • 24
Mergers, brand competition, and the price of a pint
Abstract Mergers in the UK brewing industry have reduced the number of national brewers from six to four. The number of brands, in contrast, has remained relatively constant. We analyze the effectsExpand
  • 256
  • 17
  • PDF
The Future of Spatial Econometrics
The purpose of this paper is threefold. First, we give an overview of the general direction the spatial econometrics literature has taken without attempting to provide a representative survey of allExpand
  • 176
  • 14
  • PDF
Spillovers in Space: Does Geography Matter?
We simultaneously assess the contributions to productivity of three sources of research and development spillovers: geographic, technology and product-market proximity. To do this, we construct a newExpand
  • 128
  • 14
  • PDF
Vancouver's Gasoline-Price Wars: An Empirical Exercise in Uncovering Supergame Strategies
This paper uses a unique data set to determine which dynamic model of tacit collusion best describes behaviour in a particular industry. The area investigated is a region of the Vancouver, BritishExpand
  • 212
  • 13
Product Rivalry with multiple Strategic weapons: an Analysis of price and advertising Competition
A dynamic model of product rivalry is developed for a market in which firms choose price and advertising intensity. The model, a state-space game, is implemented using data that consist of weeklyExpand
  • 185
  • 13
What Does An Oligopoly Maximize
A monopolist maximizes a well-defined objective function, monetary profit. In a competitive industry, although each individual pursues selfish objectives, the market behaves as if an agent wasExpand
  • 128
  • 12