6.5 Resolving Collective Action Problems - Introduction to Political Science | OpenStax (2022)

Learning Outcomes

By the end of this section, you will be able to:

  • Explain why collective action problems are less common and easier to resolve in small groups.
  • Describe the three main ways to resolve the tragedy of the commons.
  • Describe the reasons why each resolution to a collective action problem is imperfect.
  • Describe the three main ways to address the free-riding problem.
  • Identify the principle solutions to the prisoner’s dilemma.

Collective action problems are pernicious. While they are difficult (but not impossible) to eradicate, failure to do so can lead to serious consequences to people’s health and welfare.

Each of the three main types of collective action problems is easier to solve, at least in principle, when the problems arise within small groups of people (such as families or tribal units) in which the members know each other well and have to live with each other over a long period of time. If you free ride by not pitching in to keep your living space clean, those living with you are going to notice and probably try to find ways to compel you to do your fair share. If you share a refrigerator with others, you will need to find a way (such as labeling whose food is whose) to prevent a tragedy of the commons in which food vanishes and is not replaced. Should a prisoner’s dilemma scenario arise, the better the “suspects” know each other and the more they trust each other, the more likely it is that they will cooperate.

For small groups, the strength of the personal relationships, the power to monitor for infractions, and the ability to provide suitable rewards and enforce appropriate punishments are the keys to avoiding or mitigating collective action problems. Formal mechanisms need not be established.

You cannot know the resolution of collective action problems in advance. What happens depends on the decisions that those involved in the resolution make.

Where Can I Engage?

Testing Solutions to Collective Action Problems: The Evolution of Trust

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Figure 6.13 This screenshot shows the first step in one of the simulations you can play at The Evolution of Trust. (credit: screenshot of “The Evolution of Trust” by Nicky Case, CC0 1.0)

To see how different choices can influence the outcomes of collective action problems, you can experiment with various scenarios using Canadian game designer Nicky Case’s free online game theory simulator, The Evolution of Trust.

But what works for a small group is not sufficient for larger groups, and politics typically involves large groups. In large groups, most individuals will not necessarily trust—or even know—each other, except perhaps through their cultural identifications. If you try to free ride in a group of four, the other group members will definitely notice. If you free ride in a group of 40 million, no one is likely to perceive your absence or lack of effort. Challenges in preventing tragedies of the commons or avoiding the worst outcomes of prisoner’s dilemmas also grow with the numbers of individuals involved.72

Collective action problems involving large numbers of people cannot rely on personal relationships; they require other mechanisms for monitoring and enforcement. Remedies for free riding, tragedies of the commons, and prisoner’s dilemmas involving large groups differ, but all three types of problems require political solutions.

Show Me the Data

Carbon dioxide (CO2) emissions are a key source of the greenhouse gases that are creating a warmer and more variable climate. This map shows per capita73 CO2 emissions across countries (view interactive map at https://ourworldindata.org/grapher/co-emissions-per-capita). Per capita emissions are calculated in order to make fairer apples-to-apples comparisons; that is, you can compare how much a typical person in each country pollutes to how much a typical person in every other country pollutes.

6.5 Resolving Collective Action Problems - Introduction to Political Science | OpenStax (2)

Figure 6.14 More industrialized, wealthier countries tend to emit higher levels of CO2 than other countries. (credit: “Per Capita CO2 Emissions” by Our World in Data, CC BY 4.0)

The biggest per capita polluters are smaller, oil-producing countries such as Qatar, Kuwait, and the United Arab Emirates. Other heavily populated, affluent countries that are high emitters include the United States, Canada, and Australia, among others. Residents of these countries emit more than 150 times as much CO2 as do those living in the poorest countries such as the Central African Republic, Chad, and Niger. The four largest political regions based on population—China, the United States, the European Union, and India—contribute more than half of all CO2 emissions. Each would need to reduce their overall emissions to forestall further climate change.74 If a climate tragedy of the commons is to be averted, each country must bear its fair share of the burden.

Resolving Tragedies of the Commons

Two remedies for the tragedies of the commons require governmental power. One remedy gives a central institution (the government) the authority to protect the commons through force. If the government has a long-term interest in maintaining the commons and the de facto power to do so, it can prevent individuals from depleting the resource. Alternatively, the government can put a price on (privatize) the resource so that anyone who wants to use the resource must pay for it. In this case, the resource is no longer a “commons” open to all.

Think back to the bluefin tuna example. To help prevent their extinction in the Atlantic, the US government instituted a number of requirements for commercial fisheries including that they purchase one of a limited number of permits, abide by catch limits, and report how many tuna they caught.75 In an ideal world, the United States would offer just enough permits, with the right catch limits, at the right price, so that as many tuna as possible would be caught without depleting the tuna population, and the permits would be bought by those who value them most. In the ideal world, fisheries would abide by established limits, and their reports would confirm that they had done so.

If a commons existed completely within the border of a single country, that country could potentially solve the tragedy on its own. Tuna, however, are highly migratory, and fisheries from many countries seek them; they are part of an international commons. The International Commission for the Conservation of Atlantic Tunas (ICCAT) is an intergovernmental organization established in 1966 to address this international problem. ICCAT had the same basic goals and tools as the United States, but regrettably the organization had “no powers to enforce, no sanctions with which to punish,” and so it was ineffective in protecting the commons, at least in its early years.76

The solutions of governmental control or privatization each have their own problems. The government may protect the commons by taking control of it, but the government might use the resources to benefit political elites rather than for the benefit of the community as a whole. And while emperors have reason to preserve the resource, believing their family will rule indefinitely, elected politicians are focused squarely on the short term—the next election—rather than on preserving the resource for their grandchildren’s generation. When the government takes control of the commons, it does not necessarily use the commons wisely.

Privatizing a resource has its own pitfalls. Those who are used to exploiting the commons without paying for it (in the example above, the fisheries) will object to making costly what was once free. The more politically powerful the group, the more difficult it is for elected officials to protect the resource through privatization. Elected officials face pressure to offer more permits for greater exploitation at lower prices. As a result, the prices the government sets for the resource are usually too low, and the resource is allowed to be depleted faster than it can be sustained. Even if governmental officials did not face public opposition, privatizing the resource is challenging. If the government sets the prices too low, the resource will be depleted, and if it sets the prices too high, the community will be deprived of a valuable resource. Moreover, the more valuable the resource, the more likely it is that individuals will attempt to exploit it. In that case, preventing exploitation may require heavy policing and harsh punishments.

The giant Moa, a bird weighing as much as 500 pounds and standing 12 feet tall, was hunted to extinction by the Maori in New Zealand in the 15th century: a true tragedy of the commons.77 Fortunately, the Maori were able to turn to other sources of food. Today’s tragedy of the commons challenges, like global climate change, are much greater than a single bird for a single group.

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Figure 6.15 The Moa was hunted to extinction in a tragedy of the commons. (credit: “Hunting Moa” by Joseph Smit/Extinct Monsters by Rev. H. N. Hutchinson/Wikimedia Commons, Public Domain)

Historically, businesses that emitted CO2 polluted for free. To reduce pollution, governments can put a price on it: “Every unit of pollution you emit will cost you this much.” This price is typically referred to as a carbon tax.78 The idea is that if you make it costly to pollute, people will pollute less, but this will be true only if the tax is high enough to coerce polluters to substantially reduce their emissions. Governments find it hard to impose these taxes because those being taxed resist. Because so many human activities create a “carbon footprint,” virtually everyone would see higher prices on their electric or gas bills, as well as at the grocery store and all the other places they shop. High carbon taxes are almost certain to produce beneficial long-term consequences for human health and welfare, and the short-term costs to individuals and businesses can be mitigated.79 Still, those costs are immediate, and the benefits are in the future. As a result, countries have had enormous difficulty in setting carbon taxes high enough to prevent additional global warming.80

Nobel prize winner Elinor Ostrom proposed a relatively effective solution to the tragedy of the commons that relies neither on a sovereign nor on prices.81 Ostrom suggested that effective solutions can arise from the communities that use a resource once they recognize the commons problem and their mutual interest in resolving it. Community members are more likely than distant governments to understand the problem and to have a stake in remedying it. When Ostrom identified communities around the world that have come together to solve such problems, she observed two necessary details that allow these community solutions to work. First, the community must engage in collective decision-making so that all relevant interests can participate. Second, the rules the community makes must be clear so that members know what is allowed and what is not. If these conditions are in place, the decisions the community makes are likely to be wise and enforceable, as community members can monitor each other to prevent cheating. Ostrom found evidence supporting these principles in places ranging from the “Japanese villages of Hirano and Nagaike, the huerta irrigation mechanism between Valencia, Murcia and Alicante in Spain, and the zanjera irrigation community in the Philippines.”82

Since Ostrom’s examples all involve small communities in which members know each other and have roughly equal power, it’s unclear whether her findings point the way to a solution that can be implemented at the global level. In the absence of a solution like the one Ostrom proposes, communities tend to turn to a sovereign to impose restrictions or set prices. Since there is no global sovereign, the climate change crisis remains an especially challenging collective action problem.

Resolving Free Riding Problems

The best way to resolve the free rider problem is to disincentivize free riders. One powerful tool to discourage free riding is to keep groups small. Because in politics groups are usually large, they must develop other mechanisms to identify free riders and to deter their behavior. These mechanisms come with a cost: the group must devote resources to monitoring and punishing unwanted behavior, and group members need to subject themselves to some form of surveillance.

Every country needs to collect taxes to fund government programs. If no one paid taxes, roads would never be repaved, safety regulations could not be enforced, the military would be unfunded, and the government could not provide disaster relief, just to name a handful of the many services that taxes allow the government to deliver. Still, few citizens would voluntarily send a check to pay their fair share of taxes unless they had strong incentives to do so. The most basic incentive? Failure to pay taxes is a crime, punishable by fines and imprisonment. If you know there is some chance you will be caught and violators are punished, this may provide sufficient incentive not to free ride. In addition to monitoring and fines, to prevent individuals or corporations from evading their obligations by moving their money into other jurisdictions, countries try to coordinate their tax policies. In 2021, the G-7 nations—a group of the world’s largest economies that includes Canada, France, Germany, Italy, Japan, the UK, and the United States—did just that, agreeing to a coordinated global minimum corporate tax of no less than 15 percent.83

In the United States, the likelihood that a citizen’s taxes will be audited has dropped substantially in recent decades, especially among high-income individuals, as the federal government has devoted fewer resources to the Internal Revenue Service, the agency responsible for collecting taxes.84 While most citizens pay the taxes they owe, free riding deprives the US Treasury of some $400 billion, about 15 percent of all taxes owed, each year.85 To reduce the amount of free riding, the US government would need to devote additional resources to monitoring and enforcement.

Monitoring and penalties are not the only way to prevent free riding. Another approach is to create strong social solidarity. Political organizations and governments seek to create these bonds of common connection. Through civic education and social signaling, they send the message that citizens should pay their taxes not just because they will be punished if they don’t; they should pay them because that is what good, patriotic citizens do. In the countries with the highest tax compliance—that is, with the lowest rates of free riding—citizens generally pay their taxes because they believe the tax system is fair and that it is a civic duty to pay your taxes, and because there is widespread faith that other citizens are also paying their fair share.86 It also helps if the government is competent so that citizens can see that their taxes are being used responsibly.

The tragedy of the commons and the prospect of free riding are especially relevant for slow-growing crises like climate change. It is unlikely that the Maori knew that they were literally hunting the Moa to extinction, gradually eliminating a valuable source of food: each year, there were fewer birds to hunt, but maybe imperceptibly so, until the Moa vanished. Like the Maori, many countries are slow to address the problem of climate change, even though the changes appear to be accelerating and creating irreversible damage.87

Resolving Prisoner’s Dilemmas

Prisoner’s dilemmas create risks that can lead to more immediate but no less catastrophic outcomes. When two countries are at the brink of war, each might believe that it is more beneficial to attack than to wait—that is, to defect rather than to cooperate.

The simplest solution to the prisoner’s dilemma is for both participants to cooperate rather than to defect; however, they are likely to do so only under certain conditions. A participant is least likely to defect when they know that the other participant will punish them if they do. If they each know they will be punished if they defect, then they are more likely to remain silent. Preventing or ending prisoner’s dilemmas requires that the participants know they will be punished if they defect, that a third party will enforce cooperation, or that the participants have mutual trust.

Once one of the parties defects in a prisoner’s dilemma setting, it is not easy to get the participants to cooperate later. As in the persistent conflict between Israelis and Palestinians, cases where any two groups are locked in intractable disagreements exemplify how tit-for-tat retaliation dominates any possibility of mutual agreement. The two parties have learned not to trust each other. Once that happens, rebuilding trust is difficult. It is easier to lose trust than to gain it. In a prisoner’s dilemma, once a party has defected, the other party might well assume that the party that defected can never be trusted. Avoiding this outcome requires a third party that can enforce cooperation or punish those who defect to induce future cooperation.

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