Tybout, James <br/><br/>
Researching the Trade-Productivity Link: New Directions 
by James Tybout 
 - Washington, D.C.  IBRD  1991 
 - 58p. 
 - Working Papers WPS 638 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Developing countries --Commercial policy --Mathematical models<br/>Competition, International --Mathematical models<br/>Industrial productivity --Developing countries --Measurement --Mathematical models