This is a season when textbook publishers get kicked around a lot, and they're feeling vulnerable," Mr. Adler said. "The practice of selling U.S. products abroad at prices keyed to the local market is longstanding. It's not unusual, it doesn't violate public policy and it's certainly not illegal. But publishers are still coming to terms with the dramatic change in the law."
Mr. Adler contends that foreign textbook prices are pegged to the per capita income and economic conditions of the destination countries — and that foreign sales are a boon to America's standing in the world, to foreign students seeking an American-quality education, and even to American consumers, since each extra copy sold overseas, even at a low price, helps to spread the high costs of putting out a new textbook.