@TechReport{economics.dp.2008-16,
 author = {Caleiro, António },
 title = {How Can Voters Classify an Incumbent under Output Persistence},
 type = {Economics Discussion Paper},
 institution = {Kiel Institute for the World Economy},
 year = {2008},
 number = {2008-16},
 url = {http://www.economics-ejournal.org/economics/discussionpapers/2008-16}
}