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20-6-4 Do We Actually Need Taxes? - EcEx > .Debt ..
In economics, the excess burden of taxation, also known as the deadweight cost or deadweight loss of taxation, is one of the economic losses that society suffers as the result of taxes or subsidies. Economic theory posits that distortions change the amount and type of economic behavior from that which would occur in a free market without the tax. Excess burdens can be measured using the average cost of funds or the marginal cost of funds (MCF). Excess burdens were first discussed by Adam Smith.
An equivalent kind of inefficiency can also be caused by subsidies (which technically can be viewed as taxes with negative rates).
Economic losses due to taxes were evaluated to be as low as 2.5 cents per dollar of revenue, and as high as 30 cents per dollar of revenue (on average), and even much higher at the margins.
In the case of progressive taxes, the distortionary effects of a tax may be accompanied by other benefits: the redistribution of dollars from wealthier people to poorer people who could possibly obtain more benefit from them - in effect reducing economic inequalities and improving GDP growth.
In fact almost any tax measure will distort the economy from the path or process that would have prevailed in its absence (land value taxes are a notable exception together with other capital or wealth taxes). For example, a sales tax applied to all goods will tend to discourage consumption of all the taxed items, and an income tax will tend to discourage people from earning money in the category of income that is taxed (unless they can manage to avoid being taxed). Some people may move out of the work force (to avoid income tax); some may move into the cash or black economies (where incomes are not revealed to the tax authorities).
An equivalent kind of inefficiency can also be caused by subsidies (which technically can be viewed as taxes with negative rates).
The cost of a distortion is usually measured as the amount that would have to be paid to the people affected by its supply, the greater the excess burden. The second is the tax rate: as a general rule, the excess burden of a tax increases with the square of the tax rate.
The average cost of funds is the total cost of distortions divided by the total revenue collected by a government. In contrast, the marginal cost of funds (MCF) is the size of the distortion that accompanied the last unit of revenue raised (i.e. the rate of change of distortion with respect to revenue). In most cases, the MCF increases as the amount of tax collected increases.
The standard position in economics is that the costs in a cost-benefit analysis for any tax-funded project should be increased according to the marginal cost of funds, because that is close to the deadweight loss that will be experienced if the project is added to the budget, or to the deadweight loss removed if the project is removed from the budget.
The average cost of funds is the total cost of distortions divided by the total revenue collected by a government. In contrast, the marginal cost of funds (MCF) is the size of the distortion that accompanied the last unit of revenue raised (i.e. the rate of change of distortion with respect to revenue). In most cases, the MCF increases as the amount of tax collected increases.
The standard position in economics is that the costs in a cost-benefit analysis for any tax-funded project should be increased according to the marginal cost of funds, because that is close to the deadweight loss that will be experienced if the project is added to the budget, or to the deadweight loss removed if the project is removed from the budget.
Economic losses due to taxes were evaluated to be as low as 2.5 cents per dollar of revenue, and as high as 30 cents per dollar of revenue (on average), and even much higher at the margins.
In fact almost any tax measure will distort the economy from the path or process that would have prevailed in its absence (land value taxes are a notable exception together with other capital or wealth taxes). For example, a sales tax applied to all goods will tend to discourage consumption of all the taxed items, and an income tax will tend to discourage people from earning money in the category of income that is taxed (unless they can manage to avoid being taxed). Some people may move out of the work force (to avoid income tax); some may move into the cash or black economies (where incomes are not revealed to the tax authorities).
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