@TechReport{economics.dp.2012-42,
 author = {Zax, Ori},
 title = {Promotion Policy, Wage and Firm Size},
 type = {Economics Discussion Paper},
 institution = {Kiel Institute for the World Economy},
 year = {2012},
 number = {2012-42},
 url = {http://www.economics-ejournal.org/economics/discussionpapers/2012-42}
}