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Chapter 31 - Public Choice Theory And Taxation


Chapter 31 Outline McConnell and Brue 14th Edition

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1. Critics of the government argue that it has failed to find solutions for many problems of society and that it is very inefficient in its use of society’s scarce resources. This chapter first analyzes economic decisions made by government from public choice perspective turns to the issue of public finance and then examines the economics of taxation.
2. Most decisions about government activity are made collectively through majority voting but the procedure is not without problems.
  • Voting outcomes may be economically inefficient in cases where voters reject a public good whose total benefits exceed total costs or fail to reject a public good whose total costs are greater than the total benefits. These inefficiencies can be resolved sometimes by
  1. the formation of special interest groups that work to overcome inefficient outcomes or
  2. the use of logrolling in which votes are traded to secure a favorable and efficient decision
  3. but logrolling can also lead to inefficient decisions.
  • The paradox of voting suggests that the public may not be able to make consistent choices that reflect its preferences.
  • Based on the median-voter model it is suggested that the person or groups holding the middle position on an issue will likely determine the outcome from a majority rule election. Public decisions tend to reflect the median view.
3. Public choice theory suggests that the public sector has failed because the process it uses to make decisions is inherently weak and results in an economically inefficient allocation of resources.
  • The weakness of the decision-making process in the public sector and the resulting inefficient allocation of resources is often the result of pressures exerted on Congress and the bureaucracy by special interests and other groups.
  1. There can be a special-interest effect in which a small number of people obtain a government program or policy giving them large gains at the expense of a large number of people who individually suffer small losses. This special-interest effect is also present in pork-barrel politics because a government program will mostly benefit one constituency.
  2. Rent-seeking behavior is reflected in appeals to government for special benefits or treatment at the taxpayers’ or someone else’s expense. Government can dispense such rents through laws rules hiring and purchases.
  • Those seeking election to public office frequently favor programs whose benefits are clear and immediate and whose costs are uncertain and deferred even when the benefits are less than the costs. Conversely they frequently oppose programs whose costs are clear and immediate and whose benefits are uncertain and deferred even when the benefits are greater than the costs.
  • There are limited and bundle choices in political decisions. When citizens must vote for candidates who represent different but complete programs the voters are unable to select those parts of a program which they favor and to reject the other parts of the program.
  • It is argued that the public sector (unlike the private sector) is inefficient because those employed there are offered no incentive to be efficient there is no way to measure efficiency in the public sector and government bureaucrats can join with the special-interest groups to block budget cuts or lobby for increased funding.
  • Just as the private or market sector of the economy does not allocate resources perfectly the public sector does not perform its functions perfectly; the imperfections of both sectors make it difficult to determine which sector will provide a particular good or service more efficiently.
4.  The financing of public goods and services through
taxation also raises an important question about how the tax burden is allocated among people.
  • The benefits-received principle and the ability-to-pay principle are widely used to determine how the tax bill should be apportioned among the economy’s citizens.
  1. The benefits-received principle suggests that those people who benefit most from public goods should pay for them.
  2. The ability-to-pay principle states that taxes for the support of public goods should be tied to the income and wealth of people or their ability to pay.
  • Taxes can be classified as progressive regressive or proportional according to the way in which the average tax rate changes as incomes change.
  1. The average tax rate increases as income increases with a progressive tax it decreases as income increases with a regressive tax and it remains the same as income increases with a proportional tax.
  2. In the United States the personal income tax tends to be mildly progressive the corporate income tax is proportional and the payroll sales and property taxes are regressive.
5. Tax incidence and the efficiency loss of a tax are also important in discussion of public finance.
  • The price elasticities of demand and supply determine the incidence of a sales or excise tax.
  1. (The imposition of such a tax on a product decreases the supply of the product and increases its price. The amount of the price increase is the portion of the tax paid by the buyer; the seller pays the rest.
  2. The price elasticities of demand and supply for a product affect the portions paid by buyers and sellers: (a) the more elastic the demand the greater the portion paid by the seller; (b) the more inelastic the demand the smaller the portion paid by the seller; (c) the more elastic the supply the greater the portion paid by the buyer; and (d) the more inelastic the supply the smaller the portion paid by the buyer.
  • There is an efficiency loss from taxation. This loss occurs because there is a reduction in output despite the fact that the marginal benefits of that output are greater than the marginal cost. Thus the consumption and production of the taxed product have been reduced below the optimal level by the tax.
  1. The degree of the efficiency loss of a sales or an excise tax depends on the elasticities of supply and demand. Other things equal the greater the elasticity of supply and demand the greater the efficiency loss of a sales or an excise tax; consequently the total tax burden to society may not be equal even though two taxes produce equal tax revenue.
  2. Other tax goals however may be more important than minimizing efficiency losses from taxes. These goals may include redistributing income or reducing negative externalities.
  • A tax levied on one person or group of persons may be shifted partially or completely to another person or group; and to the extent that a tax can be shifted or passed on through lower prices paid or higher prices received its incidence is passed on to others. Table 31-2 in the text summarizes the probable shifting and incidence of the personal income tax corporate income tax general sales tax specific excise taxes and property taxes.
  • The overall U.S. tax structure is only slightly progressive and has little effect on the distribution of income because progressive taxes are generally offset by regressive taxes; however estimates of the progressivity of the tax system depend on the assumed incidence of various taxes and transfer payments made by governments to reduce income inequality in the United States.
6.  In recent years two tax issues have been discussed in the United States.
  • Pressure to improve the performance of the U.S. economy and industry has resulted in debates over tax changes to reduce consumption increase savings and stimulate investment in capital goods. The adoption of a value-added tax (VAT) on consumer goods and the reduction or elimination of the personal income or corporate income tax have been considered to achieve these objectives. The VAT penalizes consumption and should encourage saving. Increased saving should stimulate investment and economic growth.
  • The complexity of the Federal tax code also contributes to economic inefficiency because it requires time to keep records and calculate taxes owed. Proponents of the flat tax would simplify the code by having a single tax rate applied to individuals and businesses; the tax would encourage saving and investment because it would not tax capital gains or income on saving.
  • Critics of the VAT and flat tax contend that either one is regressive and would reduce the overall progressivity of the Federal tax system. Critics also cite transition costs to the economy from tax changes: a general price increase resulting from the adoption of the VAT and the losses of tax deductions from the flat tax may alter spending and housing valuations.
7. The nature and amount of government activity and the extent of individual freedom may be related.
  • Conservatives argue that the cost of government entails not only the economic cost from a growing public sector but also a cost in terms of reduced economic freedom for the individual because government now makes more of the decisions over economic activity.
  • Liberals counter that the conservative position is subject to the fallacy of limited decisions. If government activity expands this does not necessarily mean that there is less private decision making because the range of choices can be expanded by increased governmental activity.

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