In addition, tourism solves a lot of social problems in Thailand, and a stable social order is good for economic development. First of all, tourism promotes development of related industries. Tourism is not just people come to Thailand going sightseeing to those historical places and natural landscape; people need restaurants to eat, hotels to live in, vehicles to take, stores to shop. For example, hotels, according to Thai Hotels Association (THA), in 2011, the average hotel occupancy rate was at 59.21 per cent. And there are over 4,000 hotels in Thailand. These hotels bring great benefits to Thai economy. Also, shopping in Thailand is also prosperous. Siam Paragon is the 10th biggest shopping mall in the world. Siam Paragon is in Bangkok, it has 3.22 million sq ft. Government takes 7% value added tax from goods. Shopping also bring great benefits to Thai economy.