CONCEPT
Selective Incentives
Private goods available only to contributors, denied to free-riders — Olson's mechanism for overcoming the free-rider problem by decoupling individual participation from collective outcome.
Selective incentives are private goods made available only to individuals who contribute to a collective effort and denied to those who do not. They work by decoupling the individual's decision to participate from the achievement of the collective good: the contributor receives benefits unavailable to the free-rider regardless of whether the collective effort succeeds. Olson identified selective incentives as the primary mechanism — along with coercion — by which large-group collective action can be sustained despite the free-rider problem. Unions provide health insurance and legal representation to members only. Professional associations offer credentialing and peer networks. Political parties distribute offices and patronage. In each case, the selective incentive makes contribution rational by offering a private benefit that exceeds its cost, independent of the collective outcome.
In The You On AI Field Guide
The canonical illustration is the industrial labor union. The union member who pays dues does not do so because she believes her individual contribution will determine whether the union succeeds in collective bargaining. She does so because