An important way in which globalization changed U.S. antitrust policy is: Multiple Choice global corporations face stricter policies in foreign countries, allowing the United States to be less active. global corporations cannot be sued for antitrust violations, keeping U.S. courts from enforcing laws. Americans hold more shares of international corporations, placing pressure on foreign firms to perform. foreign governments are more lax when it comes to antitrust laws, putting pressure on the United States The higher the concentration ratio in a given industry, the: Multiple Choice closer the industry is to a perfectly competitive market structure. larger the market shares of the smallest four firms in the industry. closer the industry is to an oligopolistic or monopolistic type of market structure. smaller the market shares of the largest four firms in the industry.to follow