Incentive to be tough

From Ian Ayres, Freakeconomics blog:

"And here’s a final “why not” idea for better time-management at meetings. Let the last speaker on the panel (instead of the moderator) enforce the time allocation of the previous speakers. Too many moderators are wimps and let the initial speakers speak too long so that the last speaker is cheated. The last speaker has a lot better incentive to keep the train running on time."