The COVID pandemic caused the political competition between the prime ministers of the German states to reach its peak. Whoever is the best at announcing, launching, or implementing policies to combat the pandemic can hope to capitalize most politically. In this paper, we attempt to document...

This paper estimates the importance of network effects in the market for Yellow Pages. I estimate three simultaneous equations: consumer demand for usage of a directory, advertiser demand for advertising and a publisher's first-order condition (derived from profit-maximizing behavior)....