HELPMAN, Elhanan <br/><br/>
Trade Policy and Market Structure 

 - London  MIT press  1989 
 - ix, 190p. 
<br/><br/><label>ISBN: </label>9780262580984 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Commercial policy 2. International trade 3. Commerce--Mathematical models
<br/><br/><label>Dewey Class. No.: </label>382.3  / HEL-T