In a signalling model of conformity, we demonstrate that naïve observers, those that take actions at face value, constrain the set of actions that can possibly be social norms. With rational observers many actions can be norms, but with naïve observers only actions close to that preferred by...

Studies have shown that there are differences in cooperative behavior across countries. Furthermore, differences in the use and the reaction on the introduction of a norm enforcement mechansism have been documented in cross-cultural studies, recently. We present data which prove that stark...

Many resource users are not directly involved in the formulation and enforcement of resource management rules and regulations in developing countries. As a result, resource users do not generally accept such rules. Enforcement officers who have social ties to the resource users may encounter...

In a representative Swedish sample people were asked to judge the relative extent that different groups of people are considered trustworthy in several dimensions, including their political views and reading habits. A statistically significant effect of similarity on perceived trustworthiness...

We show that peer sanctioning increases cooperation in public goods experiments more in unequally endowed groups than in equally endowed groups. Punishment results in a redistribution of wealth from high to low endowment players within groups. <p>

Using survey data from Norway and Sweden, we assess people’s attitudes towards gender equality. Previous studies argue that these attitudes are more egalitarian in Sweden than in Norway. Similar to previous research, we find that Swedes are more positive towards gender equality in general....

Between 1997 and 2005, 5.2 billion USD were invested to reduce cocaine production in Colombia, the world’s main cocaine producer. However, little is known about the effectiveness of policies targeting coca cultivation, this paper evaluates the effects of the two main policies: eradication and...

In his seminal 1970 book, The Gift Relationship, Richard Titmuss argued that monetary compensation for donating blood might crowd out the supply of blood donors. To test this claim we carry out a field experiment with three different treatments. In the first treatment subjects are given the...

Unless people pay the taxes they are obliged to pay, a general welfare state will eventually collapse. Thus, for the welfare state to survive in the long run, tax compliance is of utmost importance. Using Swedish individual survey data we analyze which factors affect the perception of tax...

In many developing and transitional countries, inter-household transfers in general and gifts in particular are sizable and very important. We use unique Romanian data that enables us, contrary to most previous studies, to isolate pure gifts from other kinds of private transfers and to study...