This article consists of three parts. The first part deals with theory. We evaluate the pros and cons of government involvement in urban housing and of renting versus ownership. In the second part, we summarize the different housing policies that have been implemented in the United States, Europe, and Asia. We draw some conclusions. In particular, we show that there is a tradeoff between encouraging home ownership and social housing since countries that favor the former have neglected the latter (like Japan, Spain, etc.). In the third part, we use the theory and the international policy parts to address housing policy issues in China. One of the main concerns in Chinese cities is the raise of poverty mainly by “illegal” migrants (who are Chinese rural residents) living in “urban villages”. We propose two steps to fight against poverty in Chinese cities.