This dissertation studies the consumer demand system focusing on its functional forms in the theoretical aspect and the empirical aspect. The theoretical part investigates the regularity property of the consumer demand system with the normalized quadratic functional form. We display the regular...

Significant prediction of asset prices is of a great importance in financial economics. When studying economic and financial phenomena, it is essential to correctly specify the model. If the true dynamics are nonlinear, using linear methods will probably be irrelevant in doing empirical...

The dissertation discusses issues in the field of industrial organization. When the government provides better infrastructure to competing firms for innovation, private firms' R&D expenditures are affected. When the government doesn't assure project completion, the uncertainty impacts private...