(with price and quantity competition) and optimal regulation that involves an informational externality to the competitors …We study the regulation of a firm which supplies a regulated service while also operating in a competitive, unregulated …. Although joint conduct of the activities generates scope economies, it also entails private information, so that regulation is …

We perform a controlled experiment to study the welfare effects of competition in a strategic communication environment … misreporting costs. As a result, competition between senders reduces the total welfare. … competition between senders does not increase the amount of information decision-makers obtain. We find evidence of under …