In the work History of the Peloponnesian War, Thucydides narrates the conflicts that took place in Ancient Greece between the polis of Athens and Sparta. He highlights the famous Melian dialogue in which the Athenians -who held an empire- and the Melians -who inhabited the island of Milos- discuss their future relationship.
This dialogue is characterised by the Melians appealing to arguments of justice, equality and neutrality, while the Athenians use the threat of force and unequal resources. It would be an example, among the classics, of what is called real politik.
The Athenians distinguish between arguments of justice -between equals – and appeals to force -between the powerful and the weak-. The Athenians assert that “justice prevails in the human race in circumstances of equality, and that the powerful do what their strength permits and the weak yield to them” (V.89). So according to the Athenians, the Melians must yield.
The Melians attempt to deliberate, advocating a position of neutrality between Sparta and Athens, but offering friendship. The Melians argue “would you not agree that, remaining neutral, we should be your friends rather than your enemies, but not allies of either side” (V.94).
In a typical response of political realism, the Athenians set their priorities in the relationship with the Melians: 1.- Hatred/Vassalage; 2.- Enmity; 3.- Friendship/Neutrality. Allowing an island to be neutral and friendly is a bad example for the interests of the Athenian empire. From this perspective, the Athenians assert that “your enmity does not harm us so much as your friendship, which is to our vassals a manifest sign of our weakness, while your hatred is a sign of our power” (V.95).
The Athenians’ argument is an appeal to power and force. They do not try to convince the Melians of the advantages of accepting their position. Rather, they make a serious threat, which given the context must have been credible. The Athenians argue that “this is not a contest for you to measure courage on equal terms so as not to suffer dishonour, but the deliberation is rather about your salvation, which consists in not standing up to those who are much stronger” (V.101).
The response of the Melians is to relativise the power of the other side and give more value to the alternative of a confrontation than that of surrender. The Melians assert that “wars present vicissitudes that are more evenly shared than the disproportion of forces would suggest. For us to give in immediately holds out no hope, whereas by giving ourselves up to action there is still hope of standing” (V.102).
This Melian dialogue allows us to address the question of bargaining power. In particular, according to the terminology of the Harvard Method in Getting to yes, from Fisher and Ury, on BATNA. The key element of negotiations is what is the Best Alternative to a Negotiated Agreement –BATNA-. What is relevant is to identify this BATNA and use it as the yardstick to measure any possible negotiating outcome.
The BATNA marks the worst acceptable outcome of the negotiation. The red line where it is better not to give in. The key is that the better BATNA you have, the more bargaining power a party has. If a party has a strong alternative, it will be able to make greater demands of the other party.
I will now analyse the Melian Dialogue from the perspective of the bargaining power of the parties. The Athenians consider their BATNA to be high because they are powerful and strong. This means that they can conquer the city despite the will of the Melians. The alternatives are the surrender of the Melians or their military defeat.
The Melians try to deliberate and convince the Athenians in terms of equality and justice. Their BATNA is an alliance with Sparta to protect them from Athens. Their alternatives are a lonely and heroic war, an alliance with Sparta, surrender to Athens or compromise with Athens.
From the point of view of strategy, the Athenians failed because they only threatened with force, but did not try to convince the other side of the advantages of being allies. They sought a relationship of vassalage and wanted to impose it through force. The negotiation was about whether they would have to fight to achieve their goals. From today’s perspective, it would be better to have allies than forced vassals.
From the Melians’ point of view, the alternative to negotiating is to ally more strongly with Sparta. The problem with this negotiation is that the alternatives they propose are voluntary surrender or military defeat. These terms are unacceptable to the Melians. The way to improve BATNA is to consolidate and make credible the possible alternatives, particularly the alliance with Sparta. It should also try to deliberate and convince the other side on a principled basis.
Thucydides himself recounts that Athens finally carried out its threat. From this perspective, “the Athenians executed all the Melians of virile age who fell into their hands and reduced the children and women to slavery” (V.116). The Meliansdialogue does not have a happy ending. The powerful wins by making good on their threat to use force. The lesson, from strategy, is that negotiations should enable parties to improve their bargaining power and better results be obtained, in the long run, from principled and convincing arguments.
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