Marta Kahancova delivers a speech at the annual conference of the Wirtschafts- und Sozialwissenschaftliches Institut (WSI) of the Hans Boeckler Foundation, Duesseldorf, Germany. The theme of the two-day conference (27.-28.9.2011) is the Stabilisation of the Extension System of Collective Agreements in Germany. Invited experts from several European countries summarize the national practice of extension mechanisms, thereby contributing with a variety of experiences to the German debate between researchers, policy makers, and social partners. Marta Kahancova's presentation titled 'From Extension to Dilution: Experiences with the Extension of Higher-Level Collective Agreements in Slovakia' accounts for recent developments on the Slovak extension mechanism and the surrounding discourse between the government, employers, trade unions and the public. Conference program and more information: "http://www.boeckler.de/4990_36062.htm"