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Systematic differences in employee stock ownership plan contributions : some evidence
Mauldin, Elaine G., (1999)
Qualified plans, insurance, and professional corporations
Pension plan investments in employer securities : more is not always better
Stabile, Susan J., (1998)
The elusive ESOP-productivity link : evidence from US firm-level data
Kumbhakar, Subal, (1993)
Stochastic frontier analysis
Kumbhakar, Subal, (2000)
The specification of technical and allocative inefficiency in stochastic production and profit frontiers
Kumbhakar, Subal, (1987)