1. Is there Scope for Inflation Differentials in EMU?;E Alberola;Moneda y Cr�dito (forthcoming),1998
2. The purchasing power parity doctrine: A reappraisal;B Balassa;Journal of Political Economy,1964
3. Structural Determinants of Real Exchange Rates and National Price Levels: Some Empirical Evidence;J H Bergstrand;American Economic Review,1991
4. Pitfalls and Opportunities: What Macroeconomists Should Know about Unit Roots;J Y Campbell;NBER Macroeconomics Annual,1991