and, contrariwise for the cases where those elasticities are high. If the seller is a competitive firm, the tax burden is distributed over the factors of production depending on the elasticities thereof; this includes workers (in the form of lower wages), capital investors (in the form of loss to shareholders), landowners (in the form of lower rents), entrepreneurs (in the form of lower wages of superintendence) and customers (in the form of higher prices). To show this relationship, suppose that the market price of a product is $1.00 and that a $0.50 tax is imposed on the product that, by law, is to be collected from the seller. If the product has an elastic demand, a greater portion of the tax will be absorbed by the seller. This is because goods with elastic demand cause a large decline in quantity demanded a small increase in price. Therefore, in order to stabilize sales, the seller absorbs more of the additional tax burden. For example, the seller might drop the price of the product to $0.70 so that, after adding in the tax, the buyer pays a total of $1.20, or $0.20 more than he did before the $0.50 tax was imposed. In this example, the buyer has paid $0.20 of the $0.50 tax (in the form of a post-tax price) and the seller has paid the remaining $0.30 (in the form of a lower pre-tax price). Increased economic welfare Government spending The purpose of taxation is to provide for government spending without inflation. The provision of public goods such as roads and other infrastructure, schools, a social safety net, public health systems, national defense, law enforcement, and a courts system increases the economic welfare of society if the benefit outweighs the costs involved. Pigovian The existence of a tax can increase economic efficiency in some cases. If there is a negative externality associated with a good (meaning that it has negative effects not felt by the consumer) then a free market will trade too much of that good. By taxing the good, the government can raise revenue to address specific problems while increasing overall welfare. The goal is to tax people when they're creating societal costs in addition to their personal costs. By taxing goods with negative externalities, the government attempts to increase economic efficiency while raising revenues. This type of tax is called a Pigovian tax, after economist Arthur Pigou