Questions: Bargaining Theory and the Origins of War

Question 1

According to bargaining theory, why should rational states theoretically always be able to avoid war?

• A. Rational leaders are empathetic and intrinsically prefer peace over conflict
• B. There is always a range of negotiated outcomes both parties prefer to the expected costs of fighting
• C. International institutions can enforce agreements and make defection impossible
• D. One side will always capitulate when it recognizes military inferiority

Answer: (B)

Bargaining theory's core logic is that war destroys value — both sides bear costs. If State A expects to gain 70% of the prize from war but incurs costs c_A, and State B expects 30% minus c_B, then any negotiated split between those net values leaves both better off than fighting. This 'bargaining range' — deals both prefer to war — should always exist when war is costly. The fact that wars happen means something systematically prevents states from finding or sustaining these deals, which is what the three mechanisms (incomplete information, indivisibility, commitment problems) explain.

Question 2

State A and State B are disputing a territory. Both have accurate intelligence about each other's military strength. According to bargaining theory, war is MOST likely to occur when:

• A. State A has overwhelming military superiority over State B
• B. Both states accurately know their own probabilities of victory and war costs
• C. State A misrepresents its strength as weaker to extract a better deal, while State B misrepresents itself as stronger
• D. An external mediator offers a neutral compromise solution

Answer: (C)

Incomplete information is the primary mechanism by which bargaining breaks down. When each side strategically misrepresents its strength, both may genuinely believe the true bargaining range lies in their favor — State A thinks it deserves 65% of the prize, State B also thinks it deserves 65%. Neither believes the other's signals because both know the other has incentives to bluff. Option B (accurate information) actually makes war less likely by allowing both sides to identify the real bargaining range.

Question 3

Bargaining theory implies that wars between rational states should seldom occur, because the costs of war typically make a negotiated deal preferable.

• T. True
• F. False

Answer: False

False — this reverses the theory's conclusion. Bargaining theory starts from the puzzle that wars *should* be avoidable but clearly happen, then explains why rational actors sometimes cannot find or sustain deals despite their mutual preference for peace. The three mechanisms — incomplete information (misrepresentation incentives), indivisibility (some goods cannot be split), and commitment problems (deals may not be enforceable) — are structural reasons why even perfectly rational leaders can end up at war. The theory is an explanation of war, not a claim that it should be impossible.

Question 4

A state that launches a 'preventive war' against a rising rival — attacking before the rival grows stronger — is acting irrationally by bargaining theory's logic.

• T. True
• F. False

Answer: False

False. Preventive war is a rational response to commitment problems. If State A fears that State B is growing in power and will later demand more territory under threat of force, any agreement made today may be unenforceable tomorrow — State B has no credible way to commit to not exploiting its future power advantage. Bargaining theory predicts this: when the commitment problem is severe enough, fighting now while the power balance is still favorable can be the rational choice, even if the war is costly. The tragedy is structural: no individual decision-maker can escape this logic unilaterally.

Question 5

Why does incomplete information cause bargaining failure even when both states are rational and genuinely prefer peace to war?

Model answer: States have strategic incentives to misrepresent their military strength, resolve, and costs — bluffing strength extracts better deals. Because each side knows the other has these incentives, neither can take the other's signals at face value. Both may genuinely believe the fair settlement lies in their favor, making it impossible to identify the range of deals both prefer to war without testing each other's claims through costly conflict.

This is the incomplete information mechanism. In game-theoretic terms, cheap talk (unverifiable claims about type) is not credible in bargaining with opposing incentives. Even sincere beliefs about one's own strength and resolve may be inflated by confirmation bias or misread intelligence. The result is that each state's internal calculation of 'what I deserve' may exceed 100% of the prize — a mathematical impossibility that only war can resolve. Solving this requires costly signals, transparency mechanisms, or third-party verification — all of which are hard to achieve between sovereign states.