The formation of social ties is examined in an experimental study of voluntary public good provision. The experimental design consists of three parts. In the first part the value orientation (attitude to a generalized other) is measured. In the second part couples play a multi-period public good...

In the experiments, subjects were split in two groups of 6 individuals, named yellow and blue. Each subject had to decide whether or not to buy a token. The price of a token (i.e., the cost of participation) was common knowledge and equal for everyone. The number of tokens bought in each group...