Bargaining with a residual claimant: An experimental study

Many negotiations involve risks that are resolved ex-post. Often these risks are not incurred equally by the parties involved. We experimentally investigate bargaining situations where a residual claimant faces ex-post risk, whereas a fixed-payoff player does not. Consistent with a benchmark model, we find that residual claimants extract a risk premium, which increases in risk exposure. This premium can be high enough to make it beneficial to bargain over a risky rather than a risk-less pie. Contrary to the model's predictions, we find that the comparatively less risk averse residual claimants benefit the most from risk exposure. This is because fixed-payoff players' adopt weak bargaining strategies when the pie is risky. We find evidence for a behavioural mechanism where asymmetric exposure to risk between the two parties creates a wedge between their fairness ideas, which shifts agreements in favour of residual claimants but also increases bargaining friction.