1. Convex set functions in d-space;Borell;Periodica Mathematica Hungarica,1975
2. A useful restriction on the offer distribution in job search models;Burdett,1981
3. Unimodality, convexity, and applications;Dharmadhikari,1987
4. Are unemployment and out of the labor force behaviorally distinct states;Flinn;Journal of Labor Economics,1983
5. Abnormal selection bias;Goldberger,1982