McKenzie, David J. <br/><br/>
Paper walls are easier to tear down: passport costs and legal barriers to emigration 
by David J McKenzie 
 - Washington, D.C.  World Bank  2005 
 - 23p. 
 - Policy research working paper; no. 3783 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Passports<br/>Emigration and immigration<br/>Foreign workers