Heckman, J J <br/><br/>
Econometric mixture models and more general models for unobservables in duration analysis.  [electronic resource] 

 -  Statistical methods in medical research  1994 
 - 279-99 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, Non-U.S. Gov't 
<br/><br/><label>ISSN: </label>0962-2802 
<br/><br/><label>Standard No.: </label>10.1177/096228029400300306  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algorithms<br/>Computer Simulation<br/>Models, Econometric<br/>Proportional Hazards Models<br/>Risk Assessment<br/>Time Factors