Subsidy - Effects

Effects

In standard supply and demand curve diagrams, a subsidy will shift either the demand curve up or the supply curve down. A subsidy that increases the production will tend to result in a lower price, while a subsidy that increases demand will tend to result in an increase in price. Both cases result in a new economic equilibrium. Therefore it is essential to consider elasticity when estimating the total costs of a planned subsidy: it equals the subsidy per unit (difference between market price and subsidized price) times the new equilibrium quantity. One category of goods suffers less from this effect: Public goods are—once created—in ample supply and the total costs of subsidies remain constant regardless of the number of consumers; depending on the form of the subsidy, however, the number of producers on demanding their share of benefits may still rise and drive costs up. The recipient of the subsidy may need to be distinguished from the beneficiary of the subsidy, and this analysis will depend on elasticity of supply and demand as well as other factors. For example, a subsidy for consumption of milk by consumers may appear to benefit consumers (or some may benefit and the consumer may derive no gain, as the higher prices for milk offset the subsidy). The net effect and identification of winners and losers is rarely straightforward, but subsidies generally result in a transfer of wealth from one group to another (or transfer between sub-groups). Subsidy may also be used to refer to government actions which limit competition or raise the prices at which producers could sell their products, for example, by means of tariff protection.