Мировая и региональная статистика, страновые данные, карты и рейтинги
Свежие наборы данных и обновления данных из разных источников со всего мира
Данные и визуализации по тематике крупных событий, происходящих в мире
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International patent protection: 1960–2005 Walter G. Park ∗
Department of Economics, American University, 4400 Massachusetts Avenue NW, Washington, DC 20016, USA
Received 24 October 2007; received in revised form 14 December 2007; accepted 29 January 2008 Available online 10 March 2008
http://fs2.american.edu/wgp/www/res_policy08.pdf