The purpose of this paper is to explain deviations from PPP in an economy charaterived by a mononolistic competitive market structure in which pricing decisions incur costs. That lead producers to pre-set the price path for several periods. The paper derives an optimal pricing rule, including...

The purpose of this paper is to study analytically how the presence of transportation costs in a model of deviations from PPP affects the testing procedure of the PPP hypothesis The analysis shows that in the presence of transportation costs traditional regression analysis will tend to reject...

The purpose of this paper is to compare the behavior of an economy subject to labor contracts with an economy where the labor market clears in an auction manner. Such a comparison is intended to reveal the information content of real wages in a flexible economy. The analysis reveals two distinct...

The purpose of this paper is to analyze an optimal pricing rule for the case in which the costs of price adjustment are time dependent, and where those costs depend positively on the magnitude of the percentage price change. By means of discrete time model, it is shown that the optimal response...

This paper investigates an economy in which there are short-term wage contracts that are re-negotiated under certain conditions. This paper determines the optimal frequency of wage re-negotiation and shows that it depends positively on measures of aggregate variability and Phillips curve slope....

The purpose of this paper is to assess how restrictions on capital mobility affect adjustment to a tariff liberalization policy. This is done by comparing the adlustment process under free and restricted convertibility of foreign assets in a regime where the commercial exchange rate is pegged....

This paper analyzes the role of relative prices in the conduct of wage indexation and monetary policy in a small economy producing traded and non-traded goods under a flexible exchange rate regime. It is shown that the beneficial effect of using relative prices in addition to aggregate prices as...

The purpose of this paper Is to construct a two-period, two-country model that derives the current account, the exchange rate,the terms of trade, and real interest rates from optimal behavior principles.This is done by constructing a model that uses money mainly as a means of exchange, where the...

Optimal wage indexation, as derived by Gray, was subject to criticism due to a lack of efficient use of information; failure to clear the market which resulted in non-optimal contracts; and the lack of an explicit use of welfare criteria. The purpose of this paper is to derive a wage contract...

This paper analyzes the degree of short-run, real wage flexibility in a two-sector economy under floating rates. This is done by deriving optimal wage indexation in a contracting framework. We find that the more closed the economy, the lower the degree of wage indexation. As a result, output...