 Shipping, international trade, oil refining, and other activities related to the port of Willemstad (like the Free Trade Zone) also make a significant contribution to the economy.Curaçao has one of the highest standards of living in the Caribbean, ranking 46th in the world in terms of GDP (PPP) per capita and 28th in the world in terms of nominal GDP per capita.To achieve the government's aim to make its economy more diverse, efforts are being made to attract more foreign investment.