Using a static world CGE model, this paper compares welfare and output effects of trade liberalization of a perfectly competitive model and eight imperfectly competitive models in a unified framework. Our main finding is that welfare effects are generally robust to the model choice whereas...

Since the 1990s, computable general equilibrium (CGE) analysis has been widely used as a tool for evaluating the quantitative effects of trade policy, and many CGE studies have concerned trade liberalization in Japan. However, no study has attempted to examine the regional effects of...