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The market for volunteer labor under impure altruism : an inquiry into demand-side behavior by nonprofit organizations
Emanuele, Rosemarie C., (1992)
Job destruction and propagation of shocks
Den Haan, Wouter J., (2000)
Empirical matching functions : estimation and interpretation using state-level data
Anderson, Patricia M., (2000)
Does government spending crowd out donations of time and money?
Simmons, Walter Orlando, (2004)
Male and female recoveries in medical malpractice cases