Following the traditional approach to assessing the impact of trade liberalization, a CGE model of world trade is used. CGE models were designed to assess the impact of policy changes on the equilibrium structure of the economy, describe in detail changes in resource allocation, production and trade between sectors and the resulting overall impact on national economic well-being and output. In terms of real consumption, more than 70% of the increase in real consumption in Japan took place in the first ten years. Real investment in Japan is adjusting more slowly and has increased by 40% in the first ten years. In the following periods, investments will gradually adapt to the capital stock-building model.  (2011) In this context, negotiating an updated and improved tax agreement would allow the governments of Canada and Japan to address concerns about the current tax treaty, as expressed by the Canadian and Japanese business communities. Improving the tax agreement would therefore bring clear benefits to Canadian and Japanese business groups by further facilitating trade and investment between the two countries. . .