Why Do Governments Exist? The Economic Rationale Explained

The economic rationale for government existence stems from systematic market failures that prevent private markets from achieving efficient or equitable resource allocations without public intervention. Governments exist primarily to address four fundamental market failures: providing public goods that markets cannot supply due to free-rider problems, correcting externalities where private decisions impose costs or benefits on third parties, regulating natural monopolies where competition proves inefficient, and addressing information asymmetries that cause market breakdowns. Beyond these efficiency-based justifications, governments serve essential roles in income redistribution to achieve equity objectives that markets inherently cannot accomplish, macroeconomic stabilization to moderate business cycles and maintain full employment, and enforcement of property rights and contracts that constitute the legal foundation enabling market transactions themselves. This economic rationale explains why even market-oriented societies maintain substantial government sectors rather than relying exclusively on voluntary private exchange.

What Are Market Failures and Why Do They Justify Government?

Market failures occur when unregulated private markets fail to allocate resources efficiently, producing outcomes that waste potential gains from trade or leave mutually beneficial transactions unrealized. These failures contradict the First Fundamental Theorem of Welfare Economics, which demonstrates that competitive markets achieve Pareto efficiency under ideal conditions including perfect competition, complete markets, no externalities, perfect information, and zero transaction costs. When these stringent conditions fail in practice—as they frequently do—markets may underproduce beneficial goods, overproduce harmful activities, or fail to provide certain goods altogether, creating economic rationale for government intervention to improve outcomes. Stiglitz (1989) emphasizes that identifying market failure is necessary but insufficient for justifying government action, as intervention proves warranted only when government can feasibly correct the failure without introducing worse government failures through incompetence, corruption, or political distortion.

The concept of market failure provides the primary efficiency-based justification for government existence in economic theory, distinguishing economically legitimate government roles from arbitrary state expansion or rent-seeking by interest groups. Different types of market failures call for different forms of government intervention, with public goods potentially requiring direct government provision, externalities addressed through corrective taxes or regulations, natural monopolies managed through ownership or price regulation, and information problems ameliorated through disclosure requirements or quality standards. However, determining optimal government scope remains contested, as economists debate the severity of various market failures, government’s capacity to effectively address them, and whether alternative institutions including voluntary associations, customary norms, or modified property rights might resolve problems without state intervention. Cowen (1992) argues that market failure theory provides necessary analytical tools for evaluating government roles but warns against assuming that any imperfection in market outcomes automatically justifies government action, advocating instead for comparative institutional analysis examining whether government intervention realistically improves upon imperfect market alternatives given practical constraints on state capacity and knowledge.

Why Can’t Markets Provide Public Goods Efficiently?

What Makes Public Goods Different From Private Goods?

Public goods constitute the clearest economic rationale for government existence because their unique characteristics—non-excludability and non-rivalry—make private market provision systematically insufficient regardless of demand strength or willingness to pay. Non-excludability means that once a public good is provided, individuals cannot be prevented from consuming it regardless of whether they contribute to financing, creating pervasive free-rider problems where rational individuals consume without paying. Non-rivalry means one person’s consumption does not reduce the quantity available for others, implying that marginal cost of additional consumption is zero and efficient pricing would involve no charge, yet zero prices cannot cover provision costs in private markets. National defense exemplifies pure public goods, as protecting some citizens from foreign threats automatically protects all residents regardless of tax contributions, and defending additional citizens costs nothing once defense forces exist. Samuelson (1954) formalized public goods theory, demonstrating that efficient provision requires summing individual marginal benefits vertically across all citizens rather than horizontally as with private goods, with optimal quantity where aggregate marginal benefit equals marginal cost.

The free-rider problem inherent in public goods explains why private provision proves inadequate even when collective willingness to pay far exceeds provision costs. Individuals recognize that their personal contributions negligibly affect whether the public good gets provided when populations are large, while they can enjoy benefits regardless of contributions, creating dominant strategies to free-ride on others’ payments. Attempts to finance public goods through voluntary contributions encounter strategic behavior where individuals understate their true valuations hoping others will provide financing, a problem economists call the preference revelation problem. Historical examples of voluntary public goods provision like lighthouses or volunteer fire departments prove exceptional rather than typical, generally succeeding only in small communities where social pressure deters free-riding or where selective incentives like insurance discounts reward participation. Cornes and Sandler (1996) analyze the undersupply problem mathematically, showing that voluntary provision typically produces far below socially optimal quantities, with the shortfall worsening as group size increases and individual contributions become less pivotal, providing clear economic justification for government provision financed through compulsory taxation that overcomes free-rider problems.

How Does Government Solve the Public Goods Problem?

Government addresses public goods provision failures through compulsory taxation that solves free-rider problems by requiring contributions from all beneficiaries regardless of revealed preferences, combined with collective decision-making processes determining provision levels and service characteristics. Democratic governments theoretically aggregate citizen preferences through voting, with representatives making decisions about which public goods to provide, at what quality levels, and how to finance them through various tax instruments. This process substitutes political mechanisms for market mechanisms that fail for public goods, though public choice theory recognizes that political processes have their own imperfections including rational voter ignorance, special interest influence, and bureaucratic incentives that may cause government provision to deviate from efficient levels. Nevertheless, government provision can potentially approximate efficient outcomes better than underprovision in purely voluntary systems, particularly for public goods with broad beneficiary populations and clear collective benefits.

Government provision of public goods takes multiple forms beyond direct production by government agencies, including contracting with private firms under government financing, subsidizing private provision, or creating institutional frameworks enabling voluntary provision. Military defense typically involves government production through armed forces, though private contractors supply weapons and support services. Infrastructure like highways may be publicly financed but privately constructed under competitive bidding. Basic research receives government funding through grants to universities and private researchers rather than government laboratories alone. Parks and recreation may involve government ownership but private concessionaires providing visitor services. Besley and Ghatak (2001) analyze public versus private provision choices, finding that optimal arrangements depend on contractibility—how easily quality specifications can be written and enforced—with government production preferable when quality proves difficult to specify contractually but private provision potentially more efficient when performance can be clearly measured and rewarded. The key insight is that government’s unique power of compulsory taxation enables financing public goods at efficient levels regardless of production modality, addressing the fundamental market failure even when private sector participation proves desirable for cost-effectiveness or innovation.

How Do Externalities Create a Need for Government Intervention?

What Economic Problems Do Externalities Cause?

Externalities represent another fundamental market failure justifying government existence by creating divergence between private costs or benefits and social costs or benefits, leading profit-maximizing private decisions to produce socially suboptimal outcomes. Negative externalities occur when activities impose costs on third parties not involved in transactions, such as pollution from manufacturing harming downwind residents or traffic congestion where additional drivers slow everyone else without compensating them. These external costs mean social costs exceed private costs, causing overproduction from society’s perspective as decision-makers ignore harms imposed on others. Positive externalities arise when activities generate benefits for third parties beyond private returns, like research creating knowledge that others can use or vaccinations protecting not only recipients but also reducing disease transmission to others. External benefits cause underinvestment from society’s perspective as decision-makers cannot capture full social returns. Pigou (1920) demonstrated that externalities cause market prices to send incorrect signals about social scarcity, with prices below social marginal costs for negative externality activities and above social marginal costs for positive externality activities.

The presence of externalities means that even perfectly competitive markets with full information fail to achieve Pareto efficiency, as third-party effects create opportunities for welfare improvements through altered resource allocation. A factory emitting pollution imposes costs on surrounding residents who suffer health problems or property damage, yet voluntary market transactions between the factory and its customers ignore these external harms, leading to excessive production and pollution. The social optimum occurs where marginal social benefit equals marginal social cost including external effects, while market equilibrium occurs where marginal private benefit equals marginal private cost, creating deadweight loss from the divergence. Externalities prove pervasive in modern economies, with environmental pollution, traffic congestion, research spillovers, network effects, and human capital investments all exhibiting significant external effects that markets fail to internalize. Baumol and Oates (1988) emphasize that addressing externalities requires either government intervention or clearly defined property rights combined with low transaction costs enabling private bargaining, though the latter Coasian solution proves impractical for most pollution and congestion problems affecting large populations where transaction costs are prohibitive.

What Tools Can Government Use to Correct Externalities?

Government possesses several policy instruments for internalizing externalities and aligning private incentives with social welfare, each with advantages and limitations depending on specific circumstances. Pigouvian taxes equal to marginal external damages raise private costs to match social costs, inducing economically efficient reductions in harmful activities as individuals economize on taxed goods and substitute toward alternatives. Carbon taxes addressing climate change exemplify Pigouvian taxation, with tax levels ideally set to reflect marginal environmental damages from greenhouse gas emissions. Subsidies equal to marginal external benefits encourage activities generating positive externalities, such as research subsidies promoting innovation whose benefits spill over to society beyond private returns to researchers. Tradable permit systems create markets for pollution rights, allowing firms to buy and sell permits whose total quantity government limits to efficient aggregate pollution levels, with market prices automatically equaling marginal abatement costs across heterogeneous firms, achieving cost-effective pollution reduction. Montgomery (1972) demonstrated theoretical equivalence between Pigouvian taxes and permit systems under certainty, though they diverge under uncertainty with taxes fixing marginal costs while permits fix quantities.

Direct regulation provides alternative approaches to externalities through standards specifying permissible emissions levels, required technologies, or prohibited activities, avoiding the need for environmental damage valuation required by Pigouvian taxes or permit allocation decisions. Technology standards mandate specific pollution control equipment, ensuring minimum abatement while potentially stifling innovation in cost-effective alternatives. Performance standards set emission limits per unit of production, providing firms flexibility in achieving compliance while guaranteeing environmental outcomes. Total bans on particularly harmful substances like lead in gasoline represent extreme regulatory approaches when external damages warrant complete elimination. Stavins (2003) reviews empirical evidence comparing policy instruments, finding that market-based approaches like taxes and tradable permits typically achieve environmental goals at lower costs than command-and-control regulation by allowing flexibility in who reduces pollution and how, though regulatory approaches may prove simpler administratively and politically more feasible despite efficiency costs. Government role in addressing externalities thus involves choosing appropriate instruments balancing economic efficiency, administrative feasibility, distributional concerns, and political acceptability, with intervention justified by systematic market failure to account for third-party effects absent government correction.

Why Do Natural Monopolies Require Government Involvement?

Natural monopolies constitute a distinct market failure where economies of scale or scope make single-firm production most efficient, yet unregulated monopolies restrict output and charge excessive prices, creating tension between productive efficiency favoring monopoly and allocative efficiency requiring competitive pricing. Industries with very high fixed costs but low marginal costs—like electricity transmission, water distribution, or railroad networks—exhibit natural monopoly characteristics where average costs decline continuously with output over relevant market size, meaning one large firm produces more cheaply than multiple smaller competitors. Competition in such industries proves unstable as larger firms gain cost advantages enabling them to underprice smaller rivals until monopoly emerges. However, profit-maximizing monopolists restrict quantity below competitive levels and charge prices exceeding marginal costs, creating deadweight loss and transferring consumer surplus to producers. Viscusi, Harrington, and Vernon (2005) explain that natural monopoly provides economic rationale for government intervention either through public ownership, regulated private provision with price controls, or franchise bidding for exclusive service rights with contractual performance requirements.

Government responses to natural monopoly involve various institutional arrangements attempting to capture scale economies while preventing monopoly pricing exploitation. Traditional public utility regulation employs rate-of-return regulation where government agencies approve prices based on allowed cost recovery and reasonable profit rates, ideally setting prices equal to average cost enabling cost recovery while preventing monopoly pricing. However, rate-of-return regulation creates perverse incentives for excessive capital investment and cost padding since profits equal allowed return multiplied by capital base, a problem economists call the Averch-Johnson effect. Price cap regulation attempts to improve incentives by fixing maximum prices for multi-year periods, allowing firms to retain profits from cost reductions and thus encouraging efficiency, though it risks service quality deterioration if firms cut costs excessively. Demsetz (1968) proposed competitive bidding for monopoly franchises where firms compete ex ante for exclusive service rights, potentially delivering competitive outcomes without ongoing regulation, though implementation faces challenges from incomplete contracts, hold-up problems after winner makes sunk investments, and difficulties specifying quality and adapting to changing conditions. The natural monopoly problem thus creates ongoing economic rationale for government involvement in infrastructure sectors even as technological change sometimes erodes natural monopoly characteristics and enables partial competition.

How Do Information Problems Justify Government Action?

Information asymmetries where one party possesses superior information create market failures including adverse selection, moral hazard, and principal-agent problems that may justify government intervention to improve market functioning. Adverse selection occurs when parties with private information about their characteristics self-select in ways that harm less-informed parties, as when high-risk individuals disproportionately purchase insurance since they value coverage more than low-risk individuals, potentially causing insurance market unraveling if insurers cannot distinguish risk types and must charge average premiums that high-risk buyers accept but low-risk buyers reject. Used car markets exhibit adverse selection as sellers know vehicle quality but buyers cannot easily observe defects, causing “lemons” problems where low-quality items drive out high-quality alternatives as buyers discount all offerings assuming the worst. Akerlof (1970) demonstrated how information asymmetries can cause complete market failure even when mutually beneficial trades exist, providing rationale for government interventions including mandatory disclosure, quality standards, or public insurance provision.

Moral hazard arises when insurance or contracts alter incentives, causing parties to take more risks or provide less effort than efficient because they do not bear full consequences of their actions. Insured individuals may take fewer precautions against insured risks, while agents delegated to act on principals’ behalf may shirk or pursue personal interests rather than principals’ objectives absent adequate monitoring. These information problems affect numerous markets including health insurance, financial services, employment relationships, and corporate governance. Government responses include mandatory disclosure requirements forcing information revelation, licensing and certification systems signaling quality, consumer protection regulations preventing fraud, and direct government provision of insurance or services where private markets fail. Stiglitz (2000) emphasizes that information problems prove particularly severe in insurance and financial markets, justifying substantial government roles including social insurance programs, financial regulation, and deposit insurance. However, government interventions may create their own moral hazard problems, as deposit insurance potentially encourages excessive bank risk-taking and unemployment insurance may reduce job search effort, requiring careful policy design balancing protection against discouraging beneficial private precautions.

Why Is Income Redistribution a Government Function?

Beyond efficiency-based market failure rationales, income redistribution provides a normative justification for government based on equity concerns that markets inherently cannot address. Market economies generate substantial income inequality reflecting differences in productive abilities, inherited wealth, educational opportunities, and luck, with resulting distributions potentially violating widely shared fairness norms or failing to guarantee minimal living standards. Markets reward productivity and willingness to pay rather than need or desert, meaning efficient market outcomes may leave some individuals in poverty while others enjoy extreme wealth, a distribution many societies find ethically unacceptable regardless of its efficiency properties. Redistribution through progressive taxation and transfer programs requires government coercion since voluntary charity proves insufficient and faces free-rider problems similar to public goods, as individuals who care about poverty reduction benefit from others’ charitable contributions and thus have incentives to free-ride rather than contribute personally. Hochman and Rodgers (1969) model redistribution as a public good where each person’s utility depends on overall poverty levels rather than only their own consumption, providing efficiency-based justification for compulsory redistribution beyond pure equity arguments.

Government implements redistribution through various mechanisms including progressive income taxation, transfer programs providing cash or in-kind assistance to low-income households, social insurance protecting against economic risks, and universal public services like education and healthcare. The appropriate level and form of redistribution remain philosophically and politically contested, with different normative frameworks yielding different conclusions about distributive justice. Utilitarian welfare economics suggests redistribution from rich to poor increases total utility if marginal utility of income declines with wealth, though this depends on uncertain utility function properties and behavioral responses. Rawlsian justice prioritizes improving the welfare of worst-off individuals, potentially justifying substantial redistribution. Libertarian perspectives question government redistribution as violating property rights, though even libertarian thinkers like Nozick recognize some legitimate redistributive functions. Atkinson and Bourguignon (2000) emphasize that redistribution inevitably involves efficiency costs from reduced work incentives and tax avoidance, creating equity-efficiency tradeoffs that economics can illuminate but cannot resolve without value judgments about the relative importance of equality versus efficiency. Government’s unique power of compulsory taxation enables implementing whatever redistributive consensus emerges from democratic political processes, a function that voluntary markets cannot fulfill.

How Does Government Provide Macroeconomic Stabilization?

Macroeconomic instability including recessions with high unemployment and inflation episodes creates another rationale for government intervention through fiscal and monetary policies aimed at stabilizing aggregate economic activity. Market economies experience cyclical fluctuations in output and employment driven by aggregate demand shocks, financial crises, or supply disruptions, with recessions creating substantial welfare losses through unemployment, underutilized capacity, and foregone production. Classical economics suggested that automatic market adjustments through flexible wages and prices would restore full employment equilibrium, but Keynes (1936) argued that various rigidities and coordination failures can cause prolonged departures from full employment that government demand management policies can ameliorate. Fiscal policy through countercyclical spending increases or tax reductions during recessions can stimulate aggregate demand, while monetary policy through interest rate adjustments influences investment and consumption spending to smooth business cycles.

The stabilization rationale for government has been contested throughout modern economic history, with debates about whether stabilization policies genuinely improve outcomes or introduce additional volatility through policy mistakes and implementation lags. New Classical economists questioned stabilization policy effectiveness based on rational expectations arguments suggesting that anticipated policies have no real effects and that policymakers lack information advantages over private actors. Real business cycle theory attributed fluctuations to productivity shocks rather than demand failures, implying that observed cycles reflect efficient responses to fundamental disturbances that policy should not attempt to offset. However, financial crises and severe recessions including the Great Depression and 2008-2009 financial crisis demonstrated that unregulated market economies can experience catastrophic collapses that government intervention potentially mitigates. Bernanke (2000) emphasizes that modern consensus accepts important roles for both automatic stabilizers that respond to economic conditions without discretionary action and discretionary policies during severe downturns, though debate continues about optimal policy aggressiveness, rules versus discretion, and coordination between fiscal and monetary authorities. The stabilization function thus represents an important though contested economic rationale for government based on market economy vulnerability to aggregate fluctuations that collective action through government policy may be able to moderate.

What Are the Limits of Economic Rationales for Government?

When Do Government Failures Exceed Market Failures?

While market failures provide economic rationales for government intervention, government failures—situations where government action produces worse outcomes than imperfect markets—set limits on appropriate government scope. Public choice theory analyzes government behavior using economic tools similar to those applied to markets, recognizing that politicians, bureaucrats, and voters pursue self-interest rather than automatically promoting public welfare. Politicians maximize votes rather than social welfare, leading to policies serving organized special interests or providing visible benefits while hiding costs through deficit financing. Bureaucrats maximize budgets, agency size, and personal prestige rather than efficient service delivery, creating bloated government operations. Voters remain rationally ignorant about complex policies given their negligible individual influence over outcomes, enabling interest group capture of government decisions. Tullock (1967) documented how rent-seeking—expending resources to capture government-created benefits—can waste as many resources as the transfers themselves, suggesting government intervention may prove more costly than market imperfections it supposedly corrects.

Government capabilities vary substantially across countries depending on institutional quality, corruption levels, state capacity, and political systems, implying that optimal government scope differs based on implementation feasibility rather than merely identifying market failures. Countries with weak institutions, high corruption, or limited administrative capacity may find that government ownership or regulation produces worse outcomes than imperfect markets, suggesting that simply identifying market failure does not automatically justify intervention everywhere. Easterly (2001) argues that development economics has repeatedly overestimated government capacity to correct market failures in developing countries, with state-led industrialization, import substitution, and central planning often producing economic disasters despite theoretical market failure rationales for intervention. Effective government action requires not only good intentions but also adequate information, aligned incentives, technical expertise, and political will to resist interest group pressures, conditions often absent in practice. The appropriate economic scope for government thus depends on comparative institutional analysis weighing realistic government capabilities against the severity of market imperfections, rather than assuming that any market imperfection warrants government correction regardless of state capacity.

How Should Economic Analysis Inform Government Scope?

Economic analysis of government rationales provides frameworks for thinking systematically about appropriate public sector roles but cannot mechanically determine optimal government size or scope without incorporating value judgments about equity, risk preferences, and the relative importance of different policy objectives. Efficiency analysis identifies circumstances where government can potentially improve outcomes through public goods provision, externality correction, or information remediation, but determining whether theoretical gains materialize in practice requires empirical evaluation of specific interventions accounting for implementation costs and unintended consequences. Equity considerations involve normative judgments about distributive justice that economics can illuminate through analysis of trade-offs and consequences but cannot resolve through purely technical methods. Tanzi (2011) emphasizes that determining government’s appropriate economic role requires balancing competing objectives including efficiency, equity, macroeconomic stability, and individual liberty, with different societies legitimately reaching different conclusions about optimal balances reflecting varying values and circumstances.

Contemporary economic analysis increasingly recognizes that state capacity and institutional quality fundamentally affect whether government interventions improve welfare, shifting focus from simply identifying market failures to evaluating whether specific governments in particular contexts possess capabilities to address them effectively. Acemoglu (2005) argues that institutional quality including rule of law, property rights protection, and constraints on executive power substantially affects whether government interventions promote growth and development or become vehicles for corruption and rent extraction. The economic rationale for government thus provides necessary but insufficient conditions for intervention, requiring supplementation with institutional analysis, political economy considerations, and empirical evidence about policy effectiveness. Modern scholarship suggests that appropriate government scope varies across countries and evolves over time as state capacity changes, with developing countries potentially benefiting from focused government roles in core functions like property rights enforcement and basic public goods rather than attempting comprehensive interventions that exceed administrative capacity. Understanding economic rationales for government provides analytical foundations for evaluating policy proposals and institutional reforms but must be integrated with broader considerations about political feasibility, administrative capacity, and societal values to guide actual government design.

Conclusion

The economic rationale for government existence rests primarily on systematic market failures that prevent private markets from achieving efficient resource allocation, including public goods suffering from free-rider problems, externalities creating divergence between private and social costs, natural monopolies where competition proves inefficient, and information asymmetries causing market breakdowns. Beyond these efficiency justifications, government serves essential roles in income redistribution addressing equity concerns that markets cannot resolve, macroeconomic stabilization managing business cycles and financial crises, and enforcement of property rights and legal frameworks that constitute prerequisites for market functioning. However, identifying market failures provides necessary but insufficient justification for intervention, as government failures including rent-seeking, bureaucratic inefficiency, and political distortion may prove worse than market imperfections, requiring comparative institutional analysis evaluating whether specific governments can realistically improve outcomes given constraints on state capacity, information, and political economy dynamics.

References

Acemoglu, D. (2005). Politics and economics in weak and strong states. Journal of Monetary Economics, 52(7), 1199-1226.

Akerlof, G. A. (1970). The market for “lemons”: Quality uncertainty and the market mechanism. The Quarterly Journal of Economics, 84(3), 488-500.

Atkinson, A. B., & Bourguignon, F. (2000). Introduction: Income distribution and economics. In A. B. Atkinson & F. Bourguignon (Eds.), Handbook of income distribution (Vol. 1, pp. 1-58). Elsevier.

Baumol, W. J., & Oates, W. E. (1988). The theory of environmental policy (2nd ed.). Cambridge University Press.

Bernanke, B. S. (2000). Essays on the Great Depression. Princeton University Press.

Besley, T., & Ghatak, M. (2001). Government versus private ownership of public goods. The Quarterly Journal of Economics, 116(4), 1343-1372.

Cornes, R., & Sandler, T. (1996). The theory of externalities, public goods, and club goods (2nd ed.). Cambridge University Press.

Cowen, T. (1992). Public goods and market failures: A critical examination. Transaction Publishers.

Demsetz, H. (1968). Why regulate utilities? The Journal of Law and Economics, 11(1), 55-65.

Easterly, W. (2001). The elusive quest for growth: Economists’ adventures and misadventures in the tropics. MIT Press.

Hochman, H. M., & Rodgers, J. D. (1969). Pareto optimal redistribution. The American Economic Review, 59(4), 542-557.

Keynes, J. M. (1936). The general theory of employment, interest and money. Macmillan.

Montgomery, W. D. (1972). Markets in licenses and efficient pollution control programs. Journal of Economic Theory, 5(3), 395-418.

Pigou, A. C. (1920). The economics of welfare. Macmillan and Co.

Samuelson, P. A. (1954). The pure theory of public expenditure. The Review of Economics and Statistics, 36(4), 387-389.

Stavins, R. N. (2003). Experience with market-based environmental policy instruments. In K. G. Mäler & J. R. Vincent (Eds.), Handbook of environmental economics (Vol. 1, pp. 355-435). Elsevier.

Stiglitz, J. E. (1989). The economic role of the state. Basil Blackwell.

Stiglitz, J. E. (2000). The contributions of the economics of information to twentieth century economics. The Quarterly Journal of Economics, 115(4), 1441-1478.

Tanzi, V. (2011). Government versus markets: The changing economic role of the state. Cambridge University Press.

Tullock, G. (1967). The welfare costs of tariffs, monopolies, and theft. Western Economic Journal, 5(3), 224-232.

Viscusi, W. K., Harrington, J. E., & Vernon, J. M. (2005). Economics of regulation and antitrust (4th ed.). MIT Press.