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Based on the current situation of urban commodity housing market in China, through the study of the housing market supply and demand, price of fundamentally composed and discusses the main reasons of domestic price fluctuations. According to the domestic and foreign research of housing price theory and empirical results of China's housing price fluctuation, causes and abnormal fluctuations management research. Firstly, this paper studies the domestic price of living the main theories and research methods, and based on this, puts forward a new paradigm of housing price research, from individual behavior between and starting from the product difference between two kinds of research paradigm of balanced paradigm. Secondly, based on the literature review and housing price research, based on the basic variables and the basic variable classification system, summarizes the commodity housing prices in China. Again, this paper puts forward China commodity housing price fluctuation of empirical research, namely basic variable reference model of basic variable model -- China's housing, summarizes the main reason price fluctuation. Finally, they discuss recent domestic hot housing and income ratio study suitable for China's national conditions of housing income, puts forward the housing price is reasonable measures.

The 21st century, a growing number of SMEs making use of e-commerce, in the use of many problems arising in the course, which will affect the development of e-commerce in China. Based on this, the paper e-commerce by SMEs in China today, the status of the development of observation and research that now exists in small and medium enterprises in developing e-commerce buyers and sellers of credit transaction security, computer system equipment, operation security, e-commerce website Monotony , location was not clear, behind the scenes security issues; then, from the enterprises themselves and the community both of these issues, identify the factors affecting these issues lack of knowledge on e-commerce, professional talent shortage, e-commerce policy and law is not perfect , inadequate infrastructure; Finally, based on the above issues and factors that make specific recommendations and measures, such as the use of reliable security technology, accelerate infrastructure construction, improve relevant laws, and establishing its own feature of the site to train professional talents, focusing on e-commerce development, and help SMEs to solve the problem of e-business.