Chapter 6 of 'International Business Environments and Operations' discusses trade protectionism, outlining governmental policies aimed at enhancing or restricting trade. It elaborates on the economic and noneconomic rationales for intervention, the conflicting pressures from interest groups, and the complexities of trade policy outcomes. Furthermore, it illustrates the instruments of trade control, including tariffs and nontariff barriers, as well as the impact of these policies on business opportunities and uncertainties.