Data from the Canadian newspaper-advertising industry is used to assess the private profitability of tying in a market where the standard efficiency motives (e.g., price discrimination, cost saving, and quality control) are unlikely to apply. The empirical assessment is based on a model of...

I discuss the use of simulation techniques to evaluate unilateral effects of horizontal mergers and the pitfalls that one can encounter when using them. Simple econometric models are desirable because they can be implemented in a short period of time and can be understood by non experts....

Firms in primary-metal industries often charge subcompetitive prices and, in periods of high demand, they may ration their customers. A model is developed to explain these empirical regularities. In the model, firms with market power are aware that the price they charge today affects their...

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 all interesting work that has appeared. Second, we identify a number of problems in spatial...