【正文】
the majority of marketers attracted universal attention. The development of marketing theory has the following four stages: The first stage: startup phase. Marketing in the late 19th century to 20 in the United States the world39。 b. University research activities are basically confined to the classroom and a professor of the study, and also society and the business munity did not receive attention. Phase II: Application stage. During the 20th century to the end of World War II 20 for the application stage, begun to take shape at this time, the United States began largescale domestic enterprises to use marketing to operate businesses, open overseas markets, European countries have to follow. Established in 1931, American Marketing Association Marketing preach, and in 1937 merged the two anizations, academia and the business munity to absorb a wide range to join the Marketing from the University of the rostrum to the munity. This stage of the development of marketing in the applications. The capitalist world in 1929 due to the outbreak of an unprecedented economic crisis, the economy of the Great Depression, large shrinkage in the purchasing power of a sharp decline in the munity, the unprecedented sharp market. The whole capitalist economic crisis dealt a serious blow. This stage, marketing research is characterized by: a. there is no product to sell out of this narrow c