renteffekt

Renteffekt is a term used in economics to describe how rents—unearned or supra-normal returns—affect prices, income distribution, and incentives. The effect occurs when a portion of total surplus is captured as rents by owners of scarce resources, monopolists, landlords, or beneficiaries of policy measures, rather than by productive firms through pricing that reflects marginal costs.

Contexts where renteffekter are discussed include monopoly rents, resource rents, and land rents, as well as policy-induced rents created by taxes, subsidies, tariffs, or licensing regimes. In each case, a segment of economic surplus is transferred to a particular group, often without a corresponding gain in overall productivity.

The presence of renteffekter can distort incentives and lead to rent-seeking behavior, where firms or individuals spend resources to secure or maintain rents rather than to improve efficiency. This can cause misallocation of resources, higher prices, or transfers of wealth that do not reflect changes in underlying productive efficiency. Economists analyze renteffekter using concepts such as tax incidence, deadweight loss, and welfare transfers to assess their size and political economy implications.

Examples commonly discussed include monopoly rents granted by patent protections, increases in urban land values due to infrastructure and zoning, and natural resource rents captured by governments or license holders. Understanding renteffekter helps in evaluating policies aimed at reducing unproductive rent transfers or improving competitive conditions.

See also: rent-seeking, monopoly rent, resource rent, land value, tax incidence, welfare economics.