Multiple laboratory studies show that cooperative people tend to receive social advantages from others. One way to demonstrate this is to give people the opportunity to act positively or negatively toward contributors. For example, Pat Barclay, a professor at the University of Guelph, had participants play a cooperative game where people could contribute money toward a group fund which helped all group members, and then allowed participants to give money to other participants based on their reputations. People who contributed more to the group fund were given responsibility for more money than people who contributed less. Similar results have been found by other researchers. People who contribute toward their groups are also chosen more often as interaction partners, preferred as leaders, rated as more desirable partners for long-term relationships, and are perceived to be trustworthy and have high social status. Uncooperative people tend to receive verbal criticism or even more severe punishment. Studies suggest that individuals who act with generosity toward their communities are more likely to be viewed as deserving of benefit by members of that community than those who don‘t.