Naples is Italy's fourth largest city in terms of economic size, coming after Milan and Rome and Turin. It is the world's 105th richest city by purchasing power, with a GDP of $69 billion.[1] The economy of Naples and its surrounding area is based largely on tourism, commerce, industry and agriculture. Naples also acts as a busy cargo terminal and the port of Naples is one of the Mediterranean's biggest and most important. The city has had remarkable economic growth since World War II, and unemployment in the wider region has fallen dramatically since 1999.[2] Naples was once a busy industrial city though many factories have shut down in the last decades.