This paper reviews alternative approaches to measuring an economy''s cost competitiveness and proposes some new measures inspired by the economic theory of index numbers. The indices provide a theoretical benchmark for estimated real effective exchange rates, but differ from standard measures in...

This paper examines the optimality of export subsidies in oligopolistic markets, when home and foreign fires have different costs and there is an opportunity cost to public funds. Subsidies are found to be optimal only for surprisingly lou values of the shadow price of government funds and, if...

I review previous approaches to modelling oligopoly in general equilibrium, and propose a new view which in principle overcomes their deficiencies: modelling firms as large in their own market but small in the economy as a whole. Implementing this approach requires a tractable specification of...