Ben-Porath, Yoram, <br/><br/>
Do sex preferences really matter? / 
Yoram Ben-Porath, Finis Welch   
 - iii, 35 pages ;  28 cm. 
 - The Rand paper series ;  P-5560 .
 - Rand paper series ;  P-5560  .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Family size.