The economy of Bengaluru contributes over 43.65% to the economy of the State of Karnataka, accounting for 98% of the Software Exports of the State. The establishment and success of high technology firms in Bangalore has led to the growth of Information Technology (IT) in India. As of 2020, IT firms in Bengaluru employ about 1.5 million employees in the IT and IT-enabled services (ITES)/BPM sectors, out of nearly 4.4 million employees across India and account for the highest IT-related exports in the country. In 2014, Bangalore contributed US$ 45 billion, or 38% of India’s total IT exports. The estimated Metro GDP (PPP) of the city is around US$110 billion, coupled with a Metro GDP (PPP) Per Capita of roughly US$8,461, and it has been ranked as the fourth most productive metro area of India. One of the important factors spurring Bangalore's growth was heavy state government investment (and its environment) in Bangalore's public sector industries. Education Bangalore houses a number of top tier colleges including the Indian Institute of Management, Bangalore (IIMB), a top management Institute in India, the Indian Statistical Institute (ISI), the Indian Institute of Science (IISc), the Indian Institute of Astrophysics, the National Law School (NLSIU), The Indian Institute of Theoretical Sciences, National Institute of Design (NID), and National Institute of Fashion Technology (NIFT).. Economic sectors The earliest startups that were launched in the city in the 1990s include Infosys, Wipro Technologies, Mindtree being popular ones and smaller ones include Tejas Networks. Flipkart, having originated in Bangalore, acquired several other e-commerce companies originated in Bangalore like Myntra and was itself eventually acquired by Walmart in 2018 for close to $20 Billion. Startup companies such as Swiggy, Ola Cabs, InMobi, Quikr, RedBus are also based in the city. Bangalore is a favorable destination for industrial developments. United Breweries Group is headquartered in Bangalore. The city is an automobile production hub. Tata Hitachi Construction Machinery, Mahindra Electric, Bharat Earth Movers, Toyota Kirloskar Motor, Tesla India, Ather Energy are headquartered in Bangalore within there operations. Robert Bosch GmbH, Mercedes-Benz, Volvo, General Motors, Royal Enfield, Honda Motorcycle and Scooter India, Scania AB, Larsen & Toubro have their plants and research & development (R&D) centers around Bangalore. ABB, General Electric, Tyco International have their research & development centers in Bangalore. Aerospace industries are also popular around Bangalore, which made it as Aviation Monopoly capital of India. Airbus, Boeing, Tata Advanced Systems,