Los Angeles

The pillars of the Los Angeles economy are international trade, the entertainment industry (film, television, music, video games), aviation and oil industry, technology, fashion, and tourism.

An excerpt from the article 37 facts about Los Angeles

The city is the industrial center of the western United States. The ports of Los Angeles and Long Beach are the five busiest seaports in the world, the most important ports in the Western Hemisphere, and key trade centers among the countries of the Pacific Ocean basin. Los Angeles is the third largest economic center in the world, second only to the metropolises of Tokyo and New York.