This thesis tries to establish first a comprehensive and realistic theoretical system in which trust changes, and then explores different interesting issues using different methods like comparison analysis, econometric analysis and agent-based modeling. The theoretical system restored in this...

Research shows that innovations contribute to a firm's performance such as market value. However, research is less specific concerning how innovations contribute to market value. Simplistic assumptions are often made such as additivity, which assumes that the bundle of innovations can be...

Public goods provisions are of extreme disparity between the urban and rural areas in China. Preferential policies lead public goods shrinking in a rural area. Some farmer cooperatives and collective behaviors at village level can effectively overcome the "free rider” problem and enhance the...