This paper presents a multiple-equilibrium model of the Asian financial crisis. The economy has Krugman-style over-investment caused by weak financial regulation and exacerbated by government guarantees. Following Dooley, the government only has a limited capacity or willingness to honour such...

This paper shows that the WTO's Article XXIV increases the likelihood of free trade, but may worsen world welfare when free trade is not reached and customs unions (CUs) form. We consider a model of many countries. Article XXIV prevents a CU from raising its common external tariff, which makes...

Leith and Wren-Lewis (2007) have shown that government debt is returned to its pre-shock level in a New Keynesian model under optimal discretionary policy. This has two important implications for monetary and fiscal policy. First, in a high-debt economy, it may be optimal for discretionary...

This paper examines equilibrium growth and stability in the world economy using a North-South model in which there is assumed to be surplus labor in both North and South at an exogenously determined level of real wages. The model allows for substitution in consumption between primary commodities...

The viability of a fixed exchange rate system is shown to be state- or shock-dependent. We show, simply, Obstfeld's claim that there may be multiple equilibria - multiple shock values for which a regime switch becomes optimal. We distinguish between self-fulfilling and history-dependent crises....

In this we specify and jointly estimate supply, demand and price equations for four aggregate commodity groups: food, beverages, agricultural raw materials and metals. This simple structural model allows us, for each group of commodities, to incorporate stock data for the first time, and to...

This paper models three alternative policy strategies for an open economy and evaluates their performance. In the first regime national monetary policies are used to achieve domestic price stability, without supporting fiscal policy and without concern for external balance. The second regime...

In this paper we present two examples where the presence of inflation persistence could influence the qualitative nature of monetary policy. In the first case the desirability of a monetary policy regime comes under question when extensive inflation persistence exists. In the second case the...