Concentrated Interests

Concentrated interests are the structural advantage enjoyed by small groups whose members have large individual stakes in a collective outcome over large groups whose members have small individual stakes in the same outcome. When benefits and costs are concentrated among a few actors — each with substantial economic interest in the decision — those actors have strong incentives to invest in shaping institutional processes. When the same benefits or costs are dispersed across many actors — each with small individual interest — no actor has sufficient incentive to invest comparable resources. The result is a systematic bias in policymaking toward outcomes favored by concentrated interests, regardless of whether those outcomes serve the broader population. Olson's framework makes this asymmetry structural rather than accidental.