TY - CHAP TI - Price Promotions and Brand Loyalty: Empirical Evidence for the German Breakfast Cereals Market AF - 18th Congress of the European Association of Agricultural Economists (EAAE) PP - Zürich PY - 2011-01-01 AU - Weiss, Christoph AU - Loy, Jens-Peter AU - Empen, Janine ER -