edge. Furthermore, the region ranks 3rd for the top business process outsourcing global destinations, next to Bangalore and Mumbai. The region's retail sector remains strong, bolstered by remittances abroad, BPOs, and its tourism sector. Historically, the main business district of the metropolis was Binondo, where commercial trading flourished since the 15th century. By the 1960s, economic activities shifted from Binondo to Makati. It transformed Makati into one of the leading financial centers in Asia. Still, Binondo remained as a cultural and financial center because of the vast Chinese population residing and doing business in the area. The minimum wage of Metro Manila is at ₱481 ($10.77) for non-agricultural workers and at ₱444 ($9.94) for those working in the agricultural sector, the highest minimum wage among all the 17 regions of the country. However, an increase of ₱25 was made and implemented in November 2018. Nominal wages are what Metro Manila's current minimum wage rates are known as. The Philippine government has set these wage rates at a fixed amount. On the other hand, the amount after inflation is what is considered the real minimum wage. For instance, the non-agricultural employees of NCR typically receive ₱428.23 per day as opposed to ₱537. The minimum salary for agricultural employees in Manila (including plantation and non-plantation workers) is 398.72 pesos after accounting for inflation. Image gallery Central business districts Metro Manila has many central business districts (CBD), which categorizes it under the multiple nuclei model in human geography terms. The most prominent CBDs are the Makati Central Business District, Bonifacio Global City, Ortigas Center, Binondo, and Filinvest City. The region also has plenty of mixed-use developments owned and developed by private corporations such as the Ayala Corporation, Eton Properties, Megaworld Corporation and SM Prime Holdings. The Makati Central Business District is the premier business and commercial center of the Philippines. It is the headquarters to most of the multinational corporations residing in the Philippines as well as the country's biggest commercial firms and BPO companies. The Central Business District has an office stock of 1.1 million square meters of Grade A and premium office space. It is the home to the tallest skyscrapers in the region as well as in the country. Bonifacio Global City is the newest business district of Manila and is the premier financial and lifestyle center of the metropolis. It is located in the north-western part of Taguig. It