@TechReport{economics.dp.2007-19,
 author = {Weber Abramo, Claudio},
 title = {How Much Do Perceptions of Corruption Really Tell Us?},
 type = {Economics Discussion Paper},
 institution = {Kiel Institute for the World Economy},
 year = {2007},
 number = {2007-19},
 url = {http://www.economics-ejournal.org/economics/discussionpapers/2007-19}
}