This document provides a summary of a report on recent trends in monetary and fiscal policies in the EU and accession countries in light of the eastward expansion of the eurozone. It discusses challenges for both groups of countries. For EU countries, key issues are absorbing new members and adjusting decision-making. For accession countries, priorities are meeting euro convergence criteria through disinflation and coordination of policies to ensure stability. Risks to the single monetary policy from expansion are seen as quantitative rather than qualitative if preparations are successful and timing is optimal.