This paper investigates firms' employment and output decisions and presents some empirical evidence concerning the rationality of firms' expectations. The dynamic model is based on the assumptions of convex adjustment costs and monopolistic competition in the product market. The results are...

A new method for estimating a relative scale function is derived which does not require the specification or estimation of the firm's cost function. The method is applied to a panel of Canadian trust companies for the years 1985–1988. Results show that the industry scale function is convex...