Study on Aging EconomyThis study is based on a conception of the elderly population as a source of opportunities to stimulate entrepreneurial activity and economic development. It has been carried out thanks to the initiative of the General Foundation of the University of Salamanca (FGUSAL) in the framework of the project "Cross-border Space on Ageing" which is part of the Operational Programme for Cross-border Cooperation, Spain-Portugal 2007-2013 (POCTEP), of the European Regional Development Fund (ERDF).