Fearon: Rationalist explanations for war
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Fearon. 1995. Rationalist explanations for war. International Organization 49 (3): 379-414.
"On close inspection none of the rationalist arguments advanced in the literature holds up as an explanation because none addresses or adequately resolves the central puzzle, namely, that war is costly and risky, so rational states should have incentives to locate negotiated settlements that all would prefer to the gamble of war" (380). Why don't leaders reach "ex ante (prewar) bargains that would avoid the costs and risks of fighting?" It's not enough to show why armed conflict might happen, even between rational leaders--you must also show why a peaceful bargain won't happen first. This quotation from Gartze summaries Fearon's argument well:
"Fearon seeks to identify the causes of war that are consistent with the rationality assumption(s). He begins with two stylized observations. First, states often have incentives to compete. Second, certain modes of competition (such as war) are more costly than other methods (negotiation, bargaining). For states that compete through war, the loss in lives and property reduces the benefit or increases the burden of eventual settlements. Therefore, states are better off obtaining a given settlement without a costly contest. Rationalist explanations for war are then accounts of why states are unable to bargain and obtain settlements ex ante for which they settle ex post.
The Real Puzzle
The puzzle that rationalists ought to be paying attention to is this: "In a rationalist framework...leaders have incentives to share...private information, which could have the effect of revealing peaceful settlements that lie within the bargaining range. So, to explain how war could occur...we need to explain what would prevent them from sharing such private information." (395)
Fearon identifies five arguments in the literature about war:
According to Fearon, the first three don't explain why a bargain can't be reached. The latter two get at this, but don't explain why diplomacy or other communication couldn't be used to improve on the communication problems.
So what does resolve the puzzle? Fearon identifies three variables (with associated hypotheses) that explain the occurrence of war.
Incentives to misrepresent information. To get the best outcome through bargaining, leaders have an incentive to exaggerate their resolve/capabilities (i.e. bluff) and to hide their weakness. (i.e. each leader tries to persuade the other to give in.) (see also Jervis 1988).
X2: Commitment Problems
Three commitment problems caused by anarchy. (a) The first-strike advantage increases the incentive to defect sooner in prisoner's dilemma bargaining. (b) If one state is declining relative to another, the rising power cannot credibly commit to benign hegemony once it is dominant over the declining power. Thus, the declining power has an incentive to wage pre-emptive war against a rising power (as long as the costs of war are less than the expected costs of further decline). (This sounds like hegemonic stability theory). (c) Most state conflicts occur over resources, which are the root of military capability. When bargaining over these resources (in an effort to avoid war), neither state can credibly commit to use resources gained through bargaining for only peaceful purposes; it might use them to increase its military power. Thus, the zero-sum nature of resources lowers the probability of successfully bargaining over them.
X3: Issue indivisibility
Many of the things that states bargain/fight over are not easily divisible. Fearon dismisses this problem, as states can easily make side payments or something.
The following summaries link (or linked) to this one: