Balassa, Bela. <br/><br/>
A "stages" approach to comparative advantage. 

 - Washington :  World Bank,  1977. 
 - World Bank Series Working Paper; 256 .
<br/><br/> Investigates the changing pattern of comparative advantage in the process of economic development. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economic development.<br/>Developing countries -- Development policy.--Developing countries -- Development policy.