Many of the “American” companies in the S. & P. 500 are multinationals: a study of two hundred and sixty-two of them found that, on average, they got forty-six per cent of their earnings from abroad. This is a relatively new phenomenon. As late as 1990, foreign earnings accounted for only a small fraction of corporate profits in the U.S. Today, they account for almost a third of corporate earnings, and they’ve nearly tripled since 2000. So comparing corporate profits only to American G.D.P. yields a false picture of how companies are doing. The global economy, even with its current woes, is projected to grow more briskly than the U.S. economy over the next decade, so corporations will continue to benefit.