This paper examines the relevance of the well known "no distortion at the top" result in a model of vertical differentiation. The analysis shows that the no crossing condition is a sufficient but not necessary condition in order to get non distortion at the top. relaxing some of the canonical...

We study dynamic price adjustment under imperfect competition when consumers have non-time-separable preferences. In our model an intertemporal link arises in the consumers' maximization problems because current price and firms must take this into account when making their decisions. The main...

This paper argues that previous empirical work on the explanation for Hong Kong's export Growth, by focusing on the values of the estimated price and income elasticities, has failed to provide a full account. It is necessarily also to look at changes in the explanatory variables in the model,...

This paper investigates long-run relationships among the spot prices of four coffee types. We find two cointegrating vectors: one between the prices of Other Milds and Colombian coffee, and the other one between Unwashed Arabicas and Robustas. Following Pesaran and Shin (1996), persistence...