Drinking water is becoming increasingly scarce around the globe due to climate change and increased use. Studies on the determinants of drinking water conservation behaviour have typically concluded that behavioural change is often short-lived. To safeguard water supplies in the future,...

The explosion in online social networks motivates an enquiry into their structure and their welfare effects. A central feature of these networks is information sharing: online social networks lower the cost of getting information from others. These lower costs affect the attractiveness of...

Although both betweenness and closeness centrality are claimed to be important for the effectiveness of someone's network position, it has not been explicitly studied which networks emerge if actors follow incentives for these two positional advantages. We propose such a model and observe that...

Pairs of trustors play finitely repeated Trust Games with the same trustee in a laboratory experiment. We study trustfulness of the trustor and trustworthiness of the trustee. We distinguish between learning and control effects on behavior. Learning effects are related to the trustor's...

Many sociologists and economists have maintained that costly sanctions indeed are able to create and sustain cooperation, but under which conditions carrots or sticks are more successful in this respect still an unsettled issue. Dari-Mattiacci and De Geest (2009) recently clarify that the...