"The European Court of Justice (ECJ) rulings in the Viking and Laval cases have imposed restrictions on strike action by trade unions - in the name of free movement of services and freedom of establishment ... Martin Höpner, political scientist at the Max Planck Institute for Social Research in Cologne and co-editor of a book on the political economy of European integration, takes a long, hard look at Europe's liberalisation policy." (Quoted from article)