The Zentralverband der deutschen Konsumgenossenschaften, or ZDK (English: The Central Association of the German Consumer Cooperatives) is for over one hundred years the syndicate of the Consumer Co-operatives in Germany. Today the federation, which stands in the Lassalle tradition of Cooperative continues to develop the cooperative thought, by promoting the reestablishment of cooperatives in the service sector.
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Zentralverband der deutschen Konsumgenossenschaften Wikipedia(Text) CC BY-SA