Dhaka is the commercial heart of Bangladesh. The purchasing power of Dhaka's fast-growing middle class population is significantly higher than the rest of the country, increasing the market for modern consumer and luxury goods. Most of Bangladesh's skilled workers are employed in the businesses and industries located in the Dhaka metropolitan area. The city has historically attracted a large number of migrant workers. Hawkers, peddlers, small shops, rickshaws transport, roadside vendors and stalls employ a large segment of the population - rickshaw-pullers alone number as many as 400,000. Half the workforce is employed in household and unorganised labor, while about 800,000 work in the textile industry. The main business districts of the city include Motijheel, Pantapath and Gulshan. Basundhara City is a recently developed economic area that houses many high-tech industries and corporations and a shopping mall that is the largest in South Asia, frequented daily by more than 25,000 people. The Export Processing Zone in Dhaka was set up to encourage the export of garments, textiles and other goods. The EPZ is home to 80 factories, which employ mostly women. The Dhaka Stock Exchange is based in the city as are most of the large companies and banks of Bangladesh, including the Bangladesh Bank, HSBC, Citibank and the Grameen Bank. Urban developments have sparked a widespread construction boom, causing new high-rise buildings and skyscrapers to change the city landscape. Growth has been especially strong in the finance, banking, manufacturing, telecommunications and services sectors, while tourism, hotels and restaurants continue as important elements of the Dhaka economy.