@TechReport{economics.dp.2011-48,
 author = {Das, Satya P.},
 title = {International Trade and Polarization in the Labor Market},
 type = {Economics Discussion Paper},
 institution = {Kiel Institute for the World Economy},
 year = {2011},
 number = {2011-48},
 url = {http://www.economics-ejournal.org/economics/discussionpapers/2011-48}
}