Subsidy

Deficiency Payment
A subsidy paid to farmers when the prices at which certain products can be sold are below a target set by government policy.
Marginal Cost Pricing
The policy of setting the price of a good or service equal to the marginal cost of producing it.
Price Support
Government policies to maintain the producer prices of commodities above a minimum level, primarily in agriculture, through market intervention or subsidies.
Subsidy
Government payments to consumers or producers affecting the factor cost.