Qian, Ying <br/><br/>
Application of Flexible Functional Forms to Substitutability among Metals in U.S. Industries 
by Ying Qian 
 - Washington, D.C.  IBRD  1990 
 - 41p. 
 - Working Papers WPS 357 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Elasticity (Economics) --Mathematical models<br/>Substitution (Economics) --Mathematical models<br/>Manufacturing industries --United States --Cost control --Mathematical models<br/>Metals --Prices --United States --Mathematical models