The main theme of this dissertation is government’s strategic behaviors. We show that different budget structures give governments incentives to behave differently, and that the Leviathan model and the Bureaucratic model are better in modeling government behaviors than the median voter model. We first discuss theoretically the design of an optimal tax system, promoting the Leviathan government to maximize social welfare in order to maximize its own revenue. Then we examine empirically how government behaviors vary with different budget structures. In essay I, we apply the Buchanan-Brennan (B-B) rule to examine the effects of a tax system on the efficiency of agricultural production in the context of Chinese local governments, which receive...