While some recent technological changes reduced revenue for digital products, other changes reduced the costs of bringing creative works to market. Therefore, we do not know whether copyright protection now provides weaker incentives to bring forth new products. This paper assesses the quality...

Optimal penalty theory predicts that, because imprisonment is costly and fines are costless, fines will be used to the maximum extent possible before they are supplemented with imprisonment. If criminal procedure functions as a market system, as some observers have suggested, then optimizing...

An important result in interest group theory and political economy is that small groups are more influential than their size would lead us to expect. In this study, we document that the opposite holds for political mobilization. Citizens are more likely to participate in elections if they belong...