![Figure 1a.](/view/journals/foen/21/1/inline-i0898-5510-21-1-63-f101.gif)
![Figure 1b.](/view/journals/foen/21/1/inline-i0898-5510-21-1-63-f102.gif)
![Figure 2a.](/view/journals/foen/21/1/inline-i0898-5510-21-1-63-f201.gif)
![Figure 2b.](/view/journals/foen/21/1/inline-i0898-5510-21-1-63-f202.gif)
![Figure 3a.](/view/journals/foen/21/1/inline-i0898-5510-21-1-63-f301.gif)
Figure 3a.
PMF for PV with NDR = .00 for Initially Active Male High School Graduates Age 30
![Figure 3b.](/view/journals/foen/21/1/inline-i0898-5510-21-1-63-f302.gif)
Figure 3b.
PMF for PV with NDR = .02 for Initially Active Male High School Graduates Age 30
![Figure 3c.](/view/journals/foen/21/1/inline-i0898-5510-21-1-63-f303.gif)
Figure 3c.
PMF for PV with NDR = .04 for Initially Active Male High School Graduates Age 30
Contributor Notes
*Gary R. Skoog, Department of Economics, DePaul University, Chicago and Legal Econometrics, Inc., Glenview, IL; James E. Ciecka, Department of Economics, DePaul University, Chicago, IL. Authors wish to thank three referees for comments and suggestions which helped us improve this paper. Nancy Eldredge provided excellent editorial assistance. Of course, any errors are ours.