Entry by rival app stores on the two currently available mobile operating systems is an exciting potential benefit of the European Union's Digital Markets Act (DMA). Apple and Google will need to share the technical specifications of their interfaces with developers and offer them the same...

The determinants of incentive regulation are a key issue in industrial policy. I study an asymmetric information model of incentive rules selection by a political principal endowed with an information-gathering technology whose efficiency increases with the effort exerted by two accountable...