@Article{economics.ja.2011-17,
 author = {de Carvalho Andrade, Eduardo  and de Castro, Luciano I. },
 title = {Tougher Educational Exam Leading to Worse Selection},
 journal = {Economics: The Open-Access, Open-Assessment E-Journal},
 volume = {5},
 year = {2011},
 number = {2011-17},
 doi = {10.5018/economics-ejournal.ja.2011-17}, 
 url = {http://dx.doi.org/10.5018/economics-ejournal.ja.2011-17}
}