This paper investigates the role of interest rates, commodity prices, growth in bringing the debt crisis about and how they facilitated or made more difficult the first five years of adjustment. We also ask whether and how the world macroeconomy is likely to contribute to the solution of the...

The paper is a survey of PPP theory and evidence prepared for the New Palgrave dictionary of economics. Following a statement of the absolute and relative versions of the theory, there is a brief sketch of the history of thought with emphasis on Cassel and the monetary approach. A theoretical...