Free entry into markets with decreasing average costs and differentiated products can result in an inefficient number of firms and suboptimal product variety. Because new firms and products draw their customers in part from existing products, concentration can affect incentives to enter as well...

In der bayerischen Verfassung steht seit 1973, dass Rundfunk allein in öffentlich-rechtlicher Trägerschaft betrieben wird. Seit Mitte der 1980er Jahre hat sich aber gerade im Freistaat die vielfältigste privatwirtschaftliche Radio- und Fernsehlandschaft entwickelt. In jeder größeren Stadt,...

New technologies make it easier for charismatic individuals to influence others. This paper studies the political impact of the first populist radio personality in American history. Father Charles Coughlin blended populist demagoguery, anti-Semitism, and fascist sympathies to create a hugely...

What is the role of the media in coordinating and mobilizing insurgency against a foreign military occupation? We analyze this question in the context of the Nazi-fascist occupation of Italy during WWII. We study the effect of BBC radio counter-propaganda (Radio Londra) on the intensity of...

We analyze the role of the media in coordinating and mobilizing insurgency against an authoritarian regime in the context of the Nazi-fascist occupation of Italy during WWII. We study the effect of BBC radio on the intensity of internal resistance. By exploiting variations in monthly sunspot...

Sports streaming services offer consumers the ability to watch live sports events on a variety of devices such as a TV, laptop, tablet or smartphone. Compared to movie streaming services (e.g. Netflix), streaming sports events is very different as the time aspect plays a very important role. As...