Zenith and other American manufacturers of television sets sued Matsushita and 20 other Japanese competitors, claiming that the Japanese companies had conspired to drive Zenith and the Americans out of the American market.

Supposedly, the Japanese companies agreed to maintain artificially high prices in Japan and artificially low prices in the United States. The goal of the low prices in the United States was to destroy American competition, and the goal of the high prices in Japan was to earn sufficient profits at home so that the companies could tolerate the temporary losses in the United States.

Is the conduct of Matsushita in Japan subject to the Sherman Act?