Institutions that form to reduce moral hazard often eliminate discretion and pool the actions of heterogeneous agents. An unintended consequence of this pooling is that agents' types cannot be determined by their actions. While in the short run such mechanisms may be optimal, in the long run...

We derive conditions under which all sellers bargain in (the Nash) equilibrium and yet other conditions under which all sellers post fixed prices. Some fraction of buyers have zero search costs but buyers are otherwise identical.

The access price is the charge that a network manager charges to other firms to carry traffic (whether it initiates it or finalizes it) through the network. This charge has gained importance as the regulation of formerly vertically integrated monopolies in some industries has opened them, at...

It has been shown that if buyers have zero search cost and the remainder a common positive search cost, and sellers post prices, then there is a unique symmetric Nash equilibrium-sellers choose a price distribution. We show that increasing the number of search cost types results in another...

This paper proposes a new method for forecast selection from a pool of many forecasts. The method uses conditional information as proposed by Giacomini and White (2006). It also extends their pairwise switching method to a situation with many forecasts. I apply the method to the monthly...

In this paper we contrast a number of univariate models of Canadian GDP. We find that non-linear models are prefered to linear models, and that the most recent recession in Canada was unique in both its length and in the slow speed of recovery. We also briefly explore the link between stages of...

sta The Consumption Capital Asset Pricing Model (C-CAPM) is tested using data on equity prices in Jordan, Turkey, and Pakistan over the period 1986-93. The analysis is carried out in two steps. The parameters of agents' dynamic consumption and investment decisions are first estimated, and then...

Quadratic functions are often used in regression to infer the existence of an extremum in a relationship although tests of the location of the extremum are rarely performed. We investigate the construction of the following confidence intervals: Delta, Fieller, estimated first derivative,...

We address the question of whether asymmetry in the business cycle and asymmetry in the persistence of negative versus positive shocks characteries Australian output growth. Using nonlinear time series models we provide evidence that suggests Australian output growth is characterised by three...