@TechReport{economics.dp.2010-10,
 author = {Gan, Lydia and Yao, Shuntian},
 title = {Monopoly Innovation and Welfare Effects},
 type = {Economics Discussion Paper},
 institution = {Kiel Institute for the World Economy},
 year = {2010},
 number = {2010-10},
 url = {http://www.economics-ejournal.org/economics/discussionpapers/2010-10}
}