Thomas Hobbes
1588-1679
"In [the state of nature], there is no place for Industry; because the fruit thereof is uncertain; and consequently no Culture of the Earth...no Knowledge of the face of the Earth; no account of Time; no Arts; no Letters; no Society; and which is worst of all, continuall feare, and danger of violent death; And the life of man, solitary, poore, nasty, brutish, and short, (Ch. XVIII).
Hobbes, Thomas, 1651, Leviathan: Or the Matter, Forme and Power of a Commonwealth, Ecclesiasticall and Civil
Thomas Hobbes
1588-1679
"For the Lawes of Nature (as Justice, Equity, Modesty, Mercy, and (in summe) Doing To Others, As Wee Would Be Done To,) if themselves, without the terrour of some Power, to cause them to be observed, are contrary to our naturall Passions, that carry us to Partiality, Pride, Revenge, and the like. And Covenants, without the Sword, are but Words, and of no strength to secure a man at all, (Ch. XVIII).
Hobbes, Thomas, 1651, Leviathan: Or the Matter, Forme and Power of a Commonwealth, Ecclesiasticall and Civil
Consider society, in general, a prisoner's dilemma for social cooperation or conflict:
Nash equilibrium: everyone defects!
Socially optimal equilibrium: everyone cooperates
Hobbes' insight: no individual has an incentive to cooperate when everyone defects!
a≻b≻c≻d
The State is our commitment device
Citizens (in principle) sign a social contract, i.e. a "constitution" that deliberately restricts their liberties
In each of our interests to give up some liberties that restrict the liberties of others (e.g. theft, violence)
In exchange, we empower the State as our agent to punish those of us that fail to uphold the social contract
Politics: rules which we agree are legitimate, that determine an outcome for us all, even if we disagree (or are harmed by) with the outcome
Max Weber
1864-1920
"[A] State is a human community that (successfully) claims the monopoly of the legitimate use of physical force within a given territory."
Weber, Max, 1919, Politics as a Vocation
James Madison
1751-1836
“If men were angels, no government would be nec- essary. If angels were to govern men, neither external nor internal controls on government would be necessary. In framing a government which is to be administered by men over men, the great difficulty lies in this: you must first enable the government to control the governed; and in the next place oblige it to control itself,” (Federalist 51).
Hamilton, Madison, & Jay, 1788, The Federalist Papers
Odysseus and the Sirens by John William Waterhouse, Scene from Homer's The Odyssey
Odysseus and the Sirens by John William Waterhouse, Scene from Homer's The Odyssey
George W. Bush
43rd President of the U.S.
“Stop throwing the constitution in my face, the constitution is just a goddamn piece of paper!”
Milgrom, Paul R, Douglass C North, and Barry R Weingast, (1990), "The Role of Institutions in the Revival of Trade: The Law Merchant, Private Judges, and the Champagne Fairs," (Economics and Politics*2(1): 1-23
Rulers (kings, queens, emperor, lords) face certain incentives:
Often granted cities and merchants privileges and exemptions from feudal duties
Trade requires peace & stable property rights
After a ruler promises to protect trade, incentives arise for him/her to renege on promise!
Medieval guilds, leagues of city-states
Coalition and reputation system
Merchant law
We often think of Medieval guilds as just monopolies or cartels meant to restrict trade
But in a way they also promoted trade
Greif, Avner, Paul, Milgrom, and Barry Weingast, 1994, "Coordination, Commitment, and Enforcement: The Case of the Merchant Guild," Journal of Political Economy 102(4): 745-776
Most famous guild: Hanseatic League (German “Hansa”) of Northern Europe
Guilds were administrative bodies
Ability to regulate trade within local region
Guilds had chapters in each city, could gain access to all guild privileges abroad
Monitored and provided information about merchant activity
Greif, Avner, Paul, Milgrom, and Barry Weingast, 1994, "Coordination, Commitment, and Enforcement: The Case of the Merchant Guild," Journal of Political Economy 102(4): 745-776
Guilds allowed merchants to coordinate collective action in punishing transgressors
A free rider problem in punishment:
Violating merchants would have their privileges revoked, or be expelled from guild
Untrustworthy rulers would be boycotted by entire guild across Europe
“It was announced that any disobedience, whether by a town or an individual, was to be punished by perpetual exclusion from the Hansa”
Greif, Avner, Paul, Milgrom, and Barry Weingast, 1994, "Coordination, Commitment, and Enforcement: The Case of the Merchant Guild," Journal of Political Economy 102(4): 745-776
William H. Riker
1920-1993
“A political system is federal if is has both
A hierarchy of governments, each is autonomous in its own well-defined sphere of authority
The autonomy of each government is institutionalized in a manner that respect is self-enforcing”
Quoted in Weingast (1995) p.4
Weingast, Barry R, 1995, "The Economic Role of Political Institutions: Market-Preserving Federalism and Economic Development," Journal of Law, Economics, & Organization 11(1): 1-31
Argentina is a great example of what not to do, on paper, very decentralized
Provinces have primary responsibility for education, health, poverty, housing, infrastructure, primary tax collection, etc
But all provinces' tax revenues go to national government to be redistributed back to provinces
What incentives does this create?
Sanguinetti, Pablo and Mariano Tommasi, 2001, "Fiscal Federalism in Argentina: Policies, Politics, and Institutional Reform," Journal of the Latin American and Caribbean Economic Association
Provincial governments spend other people's money but tax their citizens to fund other provinces!
Thus, each province sets their spending high but taxes low
Argentine federal government has repeatedly had to bail out provinces
Sanguinetti, Pablo and Mariano Tommasi, 2001, "Fiscal Federalism in Argentina: Policies, Politics, and Institutional Reform," Journal of the Latin American and Caribbean Economic Association
Federalism alone does not guarantee prosperity
Tiebout competition unleashed only under certain circumstances
Recall Madison's paradox and problem of credible commitment
How do you get (subnational) governments to respect limitations put upon them?
How can federalism be self-enforcing and market-preserving?
Barry R. Weingast
1952-
In addition to Riker's definition, for federalism to be "market-preserving", must also:
3) subnational governments have primary regulatory responsibility over the economy
4) a common market is ensured
5) lower governments face a hard budget constraint
Weingast, Barry R, 1995, "The Economic Role of Political Institutions: Market-Preserving Federalism and Economic Development," Journal of Law, Economics, & Organization 11(1): 1-31
National government's authority to intervene in economy must be limited (left primarily to States)
States more subject to Tiebout competition than federal government
Congress passed 352 bills in 2013-2014, States passed over 45,000 (Source)
Constitution guarantees a common market, States cannot put up internal barriers or taxes against other States
Local governments must not be (even tacitly!) bailed out by federal government
Barry R. Weingast
1952-
"The fundamental political dilemma of an economic system is this: A government strong enough to protect property rights and enforce contracts is also strong enough to confis- cate the wealth of its citizens. Thriving markets require not only the appropriate system of property rights and a law of contracts, but a secure political foundation that limits the ability of the state to confiscate wealth," (p.1)
Weingast, Barry R, 1995, "The Economic Role of Political Institutions: Market-Preserving Federalism and Economic Development," Journal of Law, Economics, & Organization 11(1): 1-31
Barry R. Weingast
1952-
"The answer concerns the design of political institutions that credibly commit the state to preserving markets, that is, to limits on the future political discretion with respect to the economy that are in the interests of political officials to ob- serve...these limits must be self-enforcing...political officials must have an incentive to abide by them," (p.2, emphasis in original).
Weingast, Barry R, 1995, "The Economic Role of Political Institutions: Market-Preserving Federalism and Economic Development," Journal of Law, Economics, & Organization 11(1): 1-31
Barry R. Weingast
1952-
Citizens hold beliefs about appropriate bounds on government action
Constraints only work if citizens react in concert against government's violations of those constraints!
Weingast, Barry R, 1995, "The Economic Role of Political Institutions: Market-Preserving Federalism and Economic Development," Journal of Law, Economics, & Organization 11(1): 1-31
Barry R. Weingast
1952-
"In the language of game theory, we are searching for an equilibrium to a game in which the government has the opportunity to violate constraints but chooses not to" (p. 10)
Weingast, Barry R, 1995, "The Economic Role of Political Institutions: Market-Preserving Federalism and Economic Development," Journal of Law, Economics, & Organization 11(1): 1-31
Barry R. Weingast
1952-
A and B hold different views about the legitimate boundaries of S
Sovereign needs the support of at least one group to maintain power
Game moves as follows:
Weingast, Barry R, 1995, "The Economic Role of Political Institutions: Market-Preserving Federalism and Economic Development," Journal of Law, Economics, & Organization 11(1): 1-31
Barry R. Weingast
1952-
Weingast, Barry R, 1995, "The Economic Role of Political Institutions: Market-Preserving Federalism and Economic Development," Journal of Law, Economics, & Organization 11(1): 1-31
Barry R. Weingast
1952-
Weingast, Barry R, 1995, "The Economic Role of Political Institutions: Market-Preserving Federalism and Economic Development," Journal of Law, Economics, & Organization 11(1): 1-31
Need institutions to coordinate agreement on beliefs about what constitutes an infringement of rights
Very long story short: constitutions (written, like the U.S. Constitution, or unwritten, like the U.K.) allow citizens to coordinate their beliefs to allow a sovereign to credibly commit to not overstepping bounds
Weingast, Barry R, 1995, "The Economic Role of Political Institutions: Market-Preserving Federalism and Economic Development," Journal of Law, Economics, & Organization 11(1): 1-31
Local governments generate economic growth
Leads to more local tax revenue, rents for officials
Local governments have strong interest in preserving markets, preserves their own interests (tax revenue)
Weingast, Barry R, 1995, "The Economic Role of Political Institutions: Market-Preserving Federalism and Economic Development," Journal of Law, Economics, & Organization 11(1): 1-31
Violence is always costly: reduces joint-income of parties
Purely rational agents will choose conflict if MB>MC but: a bargain is always preferable to conflict (cheaper)!
Fearon, James, 1995, “Rationalist Explanations for War,” International Organization 49(3): 379-414
James Fearon
1963-
“As long as both sides suffer some costs for fighting, then war is always inefficient ex post—both sides would have been better off if they could have achieved the same final resolution without suffering the costs (or by paying lower costs). This is true even if the costs of fighting are small, or if one or both sides viewed the potential benefits as greater than the costs, since there are still costs. Unless states enjoy the activity of fighting for its own sake, as a consumption good, then war is inefficient ex-post,” (p.383).
Fearon, James, 1995, “Rationalist Explanations for War,” International Organization 49(3): 379-414
James Fearon
1963-
“The central question, then, is what prevents states in a dispute from reaching an ex ante agreement that avoids the costs they know will be paid ex post if they go to war?" Giving a rationalist explanation for war amounts to answering this question,” (p.383).
Fearon, James, 1995, “Rationalist Explanations for War,” International Organization 49(3): 379-414
James Fearon
1963-
“The central question, then, is what prevents states in a dispute from reaching an ex ante agreement that avoids the costs they know will be paid ex post if they go to war?" Giving a rationalist explanation for war amounts to answering this question,” (p.383).
Fearon, James, 1995, “Rationalist Explanations for War,” International Organization 49(3): 379-414
James Fearon
1963-
“I propose that there are three defensible answers, which take the form of general mechanisms...In the first mechanism, rational leaders may be unable to locate a mutually preferable negotiated settlement due to private information about relative capabilities or resolve incentives to misrepresent such information...Second, rationally led states may be unable to arrange a settlement that both would prefer to war due to commitment problems, situations in which mutually preferable bargains are unattainable because one or more states would have an incentive to renege on the terms,” (p.381).
Fearon, James, 1995, “Rationalist Explanations for War,” International Organization 49(3): 379-414
James Fearon
1963-
“As argued by John Harsanyi, if two rational agents have the same information about an uncertain event, then they should have the same beliefs about its likely outcome. The claim is that given identical information, truly rational agents should reason to the same conclusions about the probability of one uncertain outcome or another. Conflicting estimates should occur only if the agents have different (and so necessarily private) information,” (p.392).
Fearon, James, 1995, “Rationalist Explanations for War,” International Organization 49(3): 379-414
Allen, Douglas W., and Vera Lantinova, 2013, “The Ancient Olympics as a Signal of City-State Strength,” Economics of Governance 14: 23-44
James Fearon
1963-
“Consider the problem faced by two gunslingers with the following preferences. Each would most prefer to kill the other by stealth, facing no risk of retaliation, but each prefers that both live in peace to a gunfight in which each risks death. There is a bargain here that both sides prefer to "war"—namely, that each leaves the other alone-but without the enforcement capabilities of a third party, such as an effective sheriff, they may not be able to attain it. Given their preferences, neither person can credibly commit not to defect from the bargain by trying to shoot the other in the back,” (p.402).
Fearon, James, 1995, “Rationalist Explanations for War,” International Organization 49(3): 379-414
James Fearon
1963-
“Note that no matter how far the shadow of the future extends, iteration (or repeat play) will not make cooperation possible in strategic situations of this sort. Because being the "sucker" here may mean being permanently eliminated, strategies of conditional cooperation such as tit-for-tat are infeasible,” (p.402).
Fearon, James, 1995, “Rationalist Explanations for War,” International Organization 49(3): 379-414
James Fearon
1963-
“Preemptive war scenarios provide the analogy. If geography or military technology happened to create large first-strike or offensive advantages, then states might face the same problem as the gunslingers,” (p.402).
Fearon, James, 1995, “Rationalist Explanations for War,” International Organization 49(3): 379-414
As an example, suppose the Ancient Greek world is a pie worth 100
If there is a war between Greek city states, the winner gets 100, the loser gets 0
As an example, suppose the Ancient Greek world is a pie worth 100
If there is a war between Greek city states, the winner gets 100, the loser gets 0
Suppose Athens and Sparta are equally powerful, p=0.50 chance each would win
As an example, suppose the Ancient Greek world is a pie worth 100
If there is a war between Greek city states, the winner gets 100, the loser gets 0
Suppose Athens and Sparta are equally powerful, p=0.50 chance each would win
E[War]=[0.50(100)+0.5(0)]−10=[50]−10=40
The expected value of fighting a war is 40
This implies that Athens (for example) would find any split greater than 40 preferable to war
The cost of 10 to each side creates a bargaining range of 10+10 = 20 wide
Costly war provides incentives for a peaceful bargain
But suppose the balance of power is different, Sparta is more powerful (p=0.75) chance of defeating Athens
To prevent war, Athens would have to give Sparta an offer of 65<x<85
But further suppose that while this is the distribution of power now, Athens is on the rise, and will (if unchecked), become the dominant power in the future
Sparta has 75% chance to win the pie now and earn 100 forever (minus the war cost of 10)
Athens needs to compensate Sparta A LOT to buy off an attack
James Fearon
1963-
“In words (roughly), if B's expected decline in military power is too large relative to B's costs for war, then state A's inability to commit to restrain its foreign policy demands after it gains power makes preventative attack rational for state B,” (p.402).
Fearon, James, 1995, “Rationalist Explanations for War,” International Organization 49(3): 379-414
Thucydides (c. 460 B.C.-- c. 400 B.C.)
"What made war inevitable was the growth of Athenian power and the fear which this caused in Sparta," History of the Peloponnesian War.
Graham Allison
1940—
"In 12 of 16 past cases in which a rising power has confronted a ruling power, the result has been bloodshed."
Allison, Graham, 2015, “The Thucydides Trap: Are the U.S. and China Headed for War?”, The Atlantic
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Thomas Hobbes
1588-1679
"In [the state of nature], there is no place for Industry; because the fruit thereof is uncertain; and consequently no Culture of the Earth...no Knowledge of the face of the Earth; no account of Time; no Arts; no Letters; no Society; and which is worst of all, continuall feare, and danger of violent death; And the life of man, solitary, poore, nasty, brutish, and short, (Ch. XVIII).
Hobbes, Thomas, 1651, Leviathan: Or the Matter, Forme and Power of a Commonwealth, Ecclesiasticall and Civil
Thomas Hobbes
1588-1679
"For the Lawes of Nature (as Justice, Equity, Modesty, Mercy, and (in summe) Doing To Others, As Wee Would Be Done To,) if themselves, without the terrour of some Power, to cause them to be observed, are contrary to our naturall Passions, that carry us to Partiality, Pride, Revenge, and the like. And Covenants, without the Sword, are but Words, and of no strength to secure a man at all, (Ch. XVIII).
Hobbes, Thomas, 1651, Leviathan: Or the Matter, Forme and Power of a Commonwealth, Ecclesiasticall and Civil
Consider society, in general, a prisoner's dilemma for social cooperation or conflict:
Nash equilibrium: everyone defects!
Socially optimal equilibrium: everyone cooperates
Hobbes' insight: no individual has an incentive to cooperate when everyone defects!
a≻b≻c≻d
The State is our commitment device
Citizens (in principle) sign a social contract, i.e. a "constitution" that deliberately restricts their liberties
In each of our interests to give up some liberties that restrict the liberties of others (e.g. theft, violence)
In exchange, we empower the State as our agent to punish those of us that fail to uphold the social contract
Politics: rules which we agree are legitimate, that determine an outcome for us all, even if we disagree (or are harmed by) with the outcome
Max Weber
1864-1920
"[A] State is a human community that (successfully) claims the monopoly of the legitimate use of physical force within a given territory."
Weber, Max, 1919, Politics as a Vocation
James Madison
1751-1836
“If men were angels, no government would be nec- essary. If angels were to govern men, neither external nor internal controls on government would be necessary. In framing a government which is to be administered by men over men, the great difficulty lies in this: you must first enable the government to control the governed; and in the next place oblige it to control itself,” (Federalist 51).
Hamilton, Madison, & Jay, 1788, The Federalist Papers
Odysseus and the Sirens by John William Waterhouse, Scene from Homer's The Odyssey
Odysseus and the Sirens by John William Waterhouse, Scene from Homer's The Odyssey
George W. Bush
43rd President of the U.S.
“Stop throwing the constitution in my face, the constitution is just a goddamn piece of paper!”
Milgrom, Paul R, Douglass C North, and Barry R Weingast, (1990), "The Role of Institutions in the Revival of Trade: The Law Merchant, Private Judges, and the Champagne Fairs," (Economics and Politics*2(1): 1-23
Rulers (kings, queens, emperor, lords) face certain incentives:
Often granted cities and merchants privileges and exemptions from feudal duties
Trade requires peace & stable property rights
After a ruler promises to protect trade, incentives arise for him/her to renege on promise!
Medieval guilds, leagues of city-states
Coalition and reputation system
Merchant law
We often think of Medieval guilds as just monopolies or cartels meant to restrict trade
But in a way they also promoted trade
Greif, Avner, Paul, Milgrom, and Barry Weingast, 1994, "Coordination, Commitment, and Enforcement: The Case of the Merchant Guild," Journal of Political Economy 102(4): 745-776
Most famous guild: Hanseatic League (German “Hansa”) of Northern Europe
Guilds were administrative bodies
Ability to regulate trade within local region
Guilds had chapters in each city, could gain access to all guild privileges abroad
Monitored and provided information about merchant activity
Greif, Avner, Paul, Milgrom, and Barry Weingast, 1994, "Coordination, Commitment, and Enforcement: The Case of the Merchant Guild," Journal of Political Economy 102(4): 745-776
Guilds allowed merchants to coordinate collective action in punishing transgressors
A free rider problem in punishment:
Violating merchants would have their privileges revoked, or be expelled from guild
Untrustworthy rulers would be boycotted by entire guild across Europe
“It was announced that any disobedience, whether by a town or an individual, was to be punished by perpetual exclusion from the Hansa”
Greif, Avner, Paul, Milgrom, and Barry Weingast, 1994, "Coordination, Commitment, and Enforcement: The Case of the Merchant Guild," Journal of Political Economy 102(4): 745-776
William H. Riker
1920-1993
“A political system is federal if is has both
A hierarchy of governments, each is autonomous in its own well-defined sphere of authority
The autonomy of each government is institutionalized in a manner that respect is self-enforcing”
Quoted in Weingast (1995) p.4
Weingast, Barry R, 1995, "The Economic Role of Political Institutions: Market-Preserving Federalism and Economic Development," Journal of Law, Economics, & Organization 11(1): 1-31
Argentina is a great example of what not to do, on paper, very decentralized
Provinces have primary responsibility for education, health, poverty, housing, infrastructure, primary tax collection, etc
But all provinces' tax revenues go to national government to be redistributed back to provinces
What incentives does this create?
Sanguinetti, Pablo and Mariano Tommasi, 2001, "Fiscal Federalism in Argentina: Policies, Politics, and Institutional Reform," Journal of the Latin American and Caribbean Economic Association
Provincial governments spend other people's money but tax their citizens to fund other provinces!
Thus, each province sets their spending high but taxes low
Argentine federal government has repeatedly had to bail out provinces
Sanguinetti, Pablo and Mariano Tommasi, 2001, "Fiscal Federalism in Argentina: Policies, Politics, and Institutional Reform," Journal of the Latin American and Caribbean Economic Association
Federalism alone does not guarantee prosperity
Tiebout competition unleashed only under certain circumstances
Recall Madison's paradox and problem of credible commitment
How do you get (subnational) governments to respect limitations put upon them?
How can federalism be self-enforcing and market-preserving?
Barry R. Weingast
1952-
In addition to Riker's definition, for federalism to be "market-preserving", must also:
3) subnational governments have primary regulatory responsibility over the economy
4) a common market is ensured
5) lower governments face a hard budget constraint
Weingast, Barry R, 1995, "The Economic Role of Political Institutions: Market-Preserving Federalism and Economic Development," Journal of Law, Economics, & Organization 11(1): 1-31
National government's authority to intervene in economy must be limited (left primarily to States)
States more subject to Tiebout competition than federal government
Congress passed 352 bills in 2013-2014, States passed over 45,000 (Source)
Constitution guarantees a common market, States cannot put up internal barriers or taxes against other States
Local governments must not be (even tacitly!) bailed out by federal government
Barry R. Weingast
1952-
"The fundamental political dilemma of an economic system is this: A government strong enough to protect property rights and enforce contracts is also strong enough to confis- cate the wealth of its citizens. Thriving markets require not only the appropriate system of property rights and a law of contracts, but a secure political foundation that limits the ability of the state to confiscate wealth," (p.1)
Weingast, Barry R, 1995, "The Economic Role of Political Institutions: Market-Preserving Federalism and Economic Development," Journal of Law, Economics, & Organization 11(1): 1-31
Barry R. Weingast
1952-
"The answer concerns the design of political institutions that credibly commit the state to preserving markets, that is, to limits on the future political discretion with respect to the economy that are in the interests of political officials to ob- serve...these limits must be self-enforcing...political officials must have an incentive to abide by them," (p.2, emphasis in original).
Weingast, Barry R, 1995, "The Economic Role of Political Institutions: Market-Preserving Federalism and Economic Development," Journal of Law, Economics, & Organization 11(1): 1-31
Barry R. Weingast
1952-
Citizens hold beliefs about appropriate bounds on government action
Constraints only work if citizens react in concert against government's violations of those constraints!
Weingast, Barry R, 1995, "The Economic Role of Political Institutions: Market-Preserving Federalism and Economic Development," Journal of Law, Economics, & Organization 11(1): 1-31
Barry R. Weingast
1952-
"In the language of game theory, we are searching for an equilibrium to a game in which the government has the opportunity to violate constraints but chooses not to" (p. 10)
Weingast, Barry R, 1995, "The Economic Role of Political Institutions: Market-Preserving Federalism and Economic Development," Journal of Law, Economics, & Organization 11(1): 1-31
Barry R. Weingast
1952-
A and B hold different views about the legitimate boundaries of S
Sovereign needs the support of at least one group to maintain power
Game moves as follows:
Weingast, Barry R, 1995, "The Economic Role of Political Institutions: Market-Preserving Federalism and Economic Development," Journal of Law, Economics, & Organization 11(1): 1-31
Barry R. Weingast
1952-
Weingast, Barry R, 1995, "The Economic Role of Political Institutions: Market-Preserving Federalism and Economic Development," Journal of Law, Economics, & Organization 11(1): 1-31
Barry R. Weingast
1952-
Weingast, Barry R, 1995, "The Economic Role of Political Institutions: Market-Preserving Federalism and Economic Development," Journal of Law, Economics, & Organization 11(1): 1-31
Need institutions to coordinate agreement on beliefs about what constitutes an infringement of rights
Very long story short: constitutions (written, like the U.S. Constitution, or unwritten, like the U.K.) allow citizens to coordinate their beliefs to allow a sovereign to credibly commit to not overstepping bounds
Weingast, Barry R, 1995, "The Economic Role of Political Institutions: Market-Preserving Federalism and Economic Development," Journal of Law, Economics, & Organization 11(1): 1-31
Local governments generate economic growth
Leads to more local tax revenue, rents for officials
Local governments have strong interest in preserving markets, preserves their own interests (tax revenue)
Weingast, Barry R, 1995, "The Economic Role of Political Institutions: Market-Preserving Federalism and Economic Development," Journal of Law, Economics, & Organization 11(1): 1-31
Violence is always costly: reduces joint-income of parties
Purely rational agents will choose conflict if MB>MC but: a bargain is always preferable to conflict (cheaper)!
Fearon, James, 1995, “Rationalist Explanations for War,” International Organization 49(3): 379-414
James Fearon
1963-
“As long as both sides suffer some costs for fighting, then war is always inefficient ex post—both sides would have been better off if they could have achieved the same final resolution without suffering the costs (or by paying lower costs). This is true even if the costs of fighting are small, or if one or both sides viewed the potential benefits as greater than the costs, since there are still costs. Unless states enjoy the activity of fighting for its own sake, as a consumption good, then war is inefficient ex-post,” (p.383).
Fearon, James, 1995, “Rationalist Explanations for War,” International Organization 49(3): 379-414
James Fearon
1963-
“The central question, then, is what prevents states in a dispute from reaching an ex ante agreement that avoids the costs they know will be paid ex post if they go to war?" Giving a rationalist explanation for war amounts to answering this question,” (p.383).
Fearon, James, 1995, “Rationalist Explanations for War,” International Organization 49(3): 379-414
James Fearon
1963-
“The central question, then, is what prevents states in a dispute from reaching an ex ante agreement that avoids the costs they know will be paid ex post if they go to war?" Giving a rationalist explanation for war amounts to answering this question,” (p.383).
Fearon, James, 1995, “Rationalist Explanations for War,” International Organization 49(3): 379-414
James Fearon
1963-
“I propose that there are three defensible answers, which take the form of general mechanisms...In the first mechanism, rational leaders may be unable to locate a mutually preferable negotiated settlement due to private information about relative capabilities or resolve incentives to misrepresent such information...Second, rationally led states may be unable to arrange a settlement that both would prefer to war due to commitment problems, situations in which mutually preferable bargains are unattainable because one or more states would have an incentive to renege on the terms,” (p.381).
Fearon, James, 1995, “Rationalist Explanations for War,” International Organization 49(3): 379-414
James Fearon
1963-
“As argued by John Harsanyi, if two rational agents have the same information about an uncertain event, then they should have the same beliefs about its likely outcome. The claim is that given identical information, truly rational agents should reason to the same conclusions about the probability of one uncertain outcome or another. Conflicting estimates should occur only if the agents have different (and so necessarily private) information,” (p.392).
Fearon, James, 1995, “Rationalist Explanations for War,” International Organization 49(3): 379-414
Allen, Douglas W., and Vera Lantinova, 2013, “The Ancient Olympics as a Signal of City-State Strength,” Economics of Governance 14: 23-44
James Fearon
1963-
“Consider the problem faced by two gunslingers with the following preferences. Each would most prefer to kill the other by stealth, facing no risk of retaliation, but each prefers that both live in peace to a gunfight in which each risks death. There is a bargain here that both sides prefer to "war"—namely, that each leaves the other alone-but without the enforcement capabilities of a third party, such as an effective sheriff, they may not be able to attain it. Given their preferences, neither person can credibly commit not to defect from the bargain by trying to shoot the other in the back,” (p.402).
Fearon, James, 1995, “Rationalist Explanations for War,” International Organization 49(3): 379-414
James Fearon
1963-
“Note that no matter how far the shadow of the future extends, iteration (or repeat play) will not make cooperation possible in strategic situations of this sort. Because being the "sucker" here may mean being permanently eliminated, strategies of conditional cooperation such as tit-for-tat are infeasible,” (p.402).
Fearon, James, 1995, “Rationalist Explanations for War,” International Organization 49(3): 379-414
James Fearon
1963-
“Preemptive war scenarios provide the analogy. If geography or military technology happened to create large first-strike or offensive advantages, then states might face the same problem as the gunslingers,” (p.402).
Fearon, James, 1995, “Rationalist Explanations for War,” International Organization 49(3): 379-414
As an example, suppose the Ancient Greek world is a pie worth 100
If there is a war between Greek city states, the winner gets 100, the loser gets 0
As an example, suppose the Ancient Greek world is a pie worth 100
If there is a war between Greek city states, the winner gets 100, the loser gets 0
Suppose Athens and Sparta are equally powerful, p=0.50 chance each would win
As an example, suppose the Ancient Greek world is a pie worth 100
If there is a war between Greek city states, the winner gets 100, the loser gets 0
Suppose Athens and Sparta are equally powerful, p=0.50 chance each would win
E[War]=[0.50(100)+0.5(0)]−10=[50]−10=40
The expected value of fighting a war is 40
This implies that Athens (for example) would find any split greater than 40 preferable to war
The cost of 10 to each side creates a bargaining range of 10+10 = 20 wide
Costly war provides incentives for a peaceful bargain
But suppose the balance of power is different, Sparta is more powerful (p=0.75) chance of defeating Athens
To prevent war, Athens would have to give Sparta an offer of 65<x<85
But further suppose that while this is the distribution of power now, Athens is on the rise, and will (if unchecked), become the dominant power in the future
Sparta has 75% chance to win the pie now and earn 100 forever (minus the war cost of 10)
Athens needs to compensate Sparta A LOT to buy off an attack
James Fearon
1963-
“In words (roughly), if B's expected decline in military power is too large relative to B's costs for war, then state A's inability to commit to restrain its foreign policy demands after it gains power makes preventative attack rational for state B,” (p.402).
Fearon, James, 1995, “Rationalist Explanations for War,” International Organization 49(3): 379-414
Thucydides (c. 460 B.C.-- c. 400 B.C.)
"What made war inevitable was the growth of Athenian power and the fear which this caused in Sparta," History of the Peloponnesian War.
Graham Allison
1940—
"In 12 of 16 past cases in which a rising power has confronted a ruling power, the result has been bloodshed."
Allison, Graham, 2015, “The Thucydides Trap: Are the U.S. and China Headed for War?”, The Atlantic