The Center for Social and Economic Research (CASE) is the top-ranked economics think tank in Central Europe. Established in Warsaw in 1991 by a group of economists to help guide the transition process in post-Communist countries, CASE is now an internationally renowned organization drawing on the talents of prominent economists from around the world. Since 1991 the organization has concluded over 350 projects in 50 countries on 5 continents. After a quarter-century, CASE continues to contribute to policy debates facing Europe on crucial issues of the day. CASE focuses on key economic and social challenges facing countries around the world, with a particular focus on Europe. CASE's core thematic areas include (1) European Neighbourhood Policy, enlargement, trade and economic integration, (2) labour markets, human capital and social policy, (3) innovation, competitiveness and entrepreneurship, (4) reforms, growth and poverty reduction in developing and transition countries, and (5) macroeconomics and public finance.
The liberalisation of trade pursued by the European Union (EU) under the European Single Market (ESM) facilitates the development of trade based on market principles where partners mutually profit from trade instead of one gaining and the other losing. This piece looks back at the fifteen years of Polish membership in the European Union to evaluate how the participation in the Single Market is changing the biggest economy to have joined the EU in the 21st century.