@article{economics2008-16,
 author = {António Caleiro},
 title = {How Can Voters Classify an Incumbent under Output Persistence},
 journal = {Economics: The Open-Access, Open-Assessment E-Journal},
 volume = {2},
 year = {2008},
 number = {2008-16},
 url = {http://www.economics-ejournal.org/economics/discussionpapers/2008-16}
}