Many fundraisers report donations using categories such as more than £ 1000, more than £ 10,000 etc. One naturally wonders how we should categorise donations and whether category reporting can raise more funds than simple uncategorised reporting. To shed light on these questions, we employ a...

Individuals often have legitimate but publicly unobservable reasons for not partaking in cooperative social endeavours. This means others who lack legitimate reasons may then have the opportunity to behave uncooperatively, i.e. free-ride, and be indistinguishable from those with legitimate...

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...