voluntary cooperation in team production. Our experimental data suggest an indirect and gender-specific link: Overconfident men … hold more optimistic beliefs about coworkers' cooperativeness than men who lack confidence, and are accordingly … significantly more cooperative, whereas overconfidence, beliefs, and cooperativeness are not correlated in women. …

attitude critical to the formation of cooperation within groups and organizations (Smith, Carroll & Ashford, 1995). Although …Cooperation is essential to long-term group effectiveness. It is difficult to achieve, however, when the group's and an … individual's goals conflict. Under these circumstances, how does cooperation emerge? One means is through trust, which is an …