I assess the private profitability of tying under circumstances where the standard efficiency defenses do not necessarily hold and demonstrate that tying is profitable under a wide range of circumstances. I also examine data from the Canadian newspaper-advertising industry and argue that price...

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 new measure of geographic proximity that is based on the distribution of a firm's inventor locations...

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, empirical evidence that can shed light on those theories also has been accumulating. We review the...

We propose a semi-structural discrete-choice model that can be used to estimate static or dynamic decision rules. It is particularly useful in strategic contexts when games involve a rich set of choices, when private information is correlated, and when one wants to uncover the effect of historic...

We examine theoretical predictions and econometric evidence concerning franchise contracting and sales-force compensation and suggest a number of factors that ought to influence the contracts that are written between principles and agents. For each factor, we construct the simplest theoretical...

Abstract In many spatial applications, agents make discrete choices (e.g. operating or product-line decisions), and applied researchers need econometric techniques that enable them to model such situations. Unfortunately, however, most discrete-choice estimators are invalid when variables and/or...

Understanding what determines firm boundaries and the choice between interacting in a firm or a market is not only the fundamental concern of the theory of the firm, but it is also one of the most important issues in economics. Data on value added, for example, reveal that in the US,...