In February 1995 Continental Airlines introduced an incentive scheme that p
romised monthly bonuses to all 35,000 hourly employees if the company achie
ved a firm-wide performance goal. Conventional wisdom suggests that free ri
ding will render such schemes ineffective. We present evidence indicating t
hat the incentive scheme raised employee performance despite the apparent t
hreat of free riding. To explain why the scheme may have been effective we
argue that the organization of employees into autonomous work groups enable
d Continental to induce mutual monitoring among employees within each work
group.