Many economists say the Chinese government taxes its citizens directly and through inflation to suppress the value of the yuan in order that Chinese exporters can offer especially good deals to American consumers. The issue has been politically volatile in the United States, and this week members of Congress reintroduced legislation, approved by the House last year, that would show the world that Washington is as intent as is Beijing to tax and otherwise pick its citizens’ pockets in order to bestow special privileges on politically forceful domestic producers.