Chapter 7: Taxes

The relationship between world price and autarky price serves as the critical determinant of trade direction, with countries becoming importers when foreign production is more efficient and exporters when domestic production offers cost advantages. Trade fundamentally alters domestic market equilibria by shifting prices, which generates distributional effects across economic actors—consumers benefit from lower import prices while domestic producers in import-competing industries face reduced market share and profitability. The chapter explores how trade barriers, particularly tariffs and import quotas, artificially elevate domestic prices, restrict consumption and production efficiency, and generate deadweight loss despite providing benefits to protected industries and government revenue collection. Multiple justifications for trade protection receive examination, including infant industry arguments that developing sectors require temporary shelter from international competition, national security concerns about strategic industries, responses to alleged unfair trading practices, and labor market protection objectives. Practical case studies such as U.S. sugar quotas and Chinese tire tariffs illustrate the real-world implementation and consequences of protectionist policies, revealing the political economy tensions between efficiency and distributional equity. The chapter concludes that while international trade produces aggregate economic gains sufficient to compensate disadvantaged groups through targeted policies, the actual implementation of such compensation remains inconsistent, creating persistent political opposition to free trade despite its overall welfare benefits.