Digital platforms are increasingly the subject of regulatory scrutiny. In comparison to multiple competitors, a single platform may increase consumer welfare if network effects are large or may decrease welfare due to higher prices or reduction in platform variety. We study the net effect of...

Archaeologists, anthropologists, and evolutionary biologists study the origins of our relationship with dogs and how it has evolved over time. Sociologists and legal scholars study the roles of dogs in the modern family. Veterinarian researchers address the relationship in the context of...

Digital platforms are increasingly the subject of regulatory scrutiny. In comparison to multiple competitors, a single platform may increase consumer welfare if network effects are large or may decrease welfare due to higher prices or reduction in platform variety. We study the net effect of...