Krishma, Pramila
(1989)
Random Parmeters and Self-Selection Models.
Bologna:
Dipartimento di Scienze economiche DSE,
p. 21.
DOI 10.6092/unibo/amsacta/5332.
In: Quaderni - Working Paper DSE
(78).
ISSN 2282-6483.
Full text disponibile come:
Anteprima |
Documento di testo(pdf)
Licenza: Creative Commons Attribution Non-commercial 3.0 (CC BY-NC 3.0) Download (136kB) | Anteprima |
Abstract
In this paper I discuss the specification of self-selection models with random parameters. I demostrate that in a self-selection model, misspecification of the parameter structure as constant causes blased estimates, and the direction of the bias leads to an under-estimation of the selectivity effect. I estimate a self-selection model of moonlighting with random parameters and find that: the selectivity effect, which was almost absent in the constant parameter version of the model, is indeed significant.
Abstract