Manhattan is a great financial center, with some of the world's largest banks and brokerage houses and such institutions as the New York and American stock exchanges. In the borough also are the headquarters of many large corporations and numerous manufacturing industries; the relative importance of the latter, however, has declined in recent decades. The chief products include clothing, printed materials, and processed food. Manhattan in addition is a leading center for international and domestic trade. The advertising and insurance industries and radio and television broadcasting are other important segments of the borough's economy.