Pre-commitment in negotiations can hinder public good provision, with communication as a game-changer.
The study tested a model on how making commitments before negotiations affects the likelihood of reaching an agreement when people have different information. They found that when considering factors other than just money, the model's prediction was not significant. However, when communication was introduced, the model's prediction became significant again. This shows that making commitments can impact negotiations, even when people act in ways not predicted by the model.