 NTU also has a research citation that is among the top four in the world, with its research output being ranked among the top three universities globally in Engineering by Essential Science Indicators of Thomson Reuters.In the 2017 QS World University Rankings by Broad Subject Area, NTU is ranked 22nd in the world for Social Sciences and Management for three consecutive years.Social Sciences and Management includes the Wee Kim Wee School of Communication and Information, National Institute of Education, Nanyang Business School and School of Social Sciences.