Chapter 1 Chapter 1 Introduction 1. What is international trade about? The gains from trade(贸易所得) > The pattern of trade(贸易格局) > The effects of trade(贸易福利效应) Balance between liberalism and protectionism(贸易政 策的决策) 2. The basic conceptions of It 2006年版2006年版 Chapter 1 Chapter 1 Introduction 1. What is international trade about? ➢ The gains from trade（贸易所得） ➢ The pattern of trade(贸易格局） ➢ The effects of trade（贸易福利效应） ➢ Balance between Liberalism and Protectionism（贸易政 策的决策） 2. The basic conceptions of IT