Keywords: matching theory, voting mechanism optimization, continuous workplace cooperation

“Matching, Voting and Cooperation”

In our daily life, we are often confronted with problems of matching, voting and cooperation: students have to be matched to schools, and organ transplants need to be matched to patients; presidents are elected, and laws are voted on; and at work, projects are undertaken in groups. This thesis answers the following questions: What impact does a more complex preference structure have on known results in matching theory? How should a voting mechanism look like such that voting is always beneficial? How should people behave if they have to cooperate repeatedly over time?