Evolving theory of network effects
Should antitrust enforcers be concerned about entry barriers in the search ad market? Some believe the market exhibits “network effects,” according to the New York Times. Although traditionally applied to Industrial Age industries with high fixed costs like railroads and telephone exchanges, anything now exhibits a network effect if its value increases because more people use it. Network effects are “everywhere,” according to a top former antitrust official. Coke and Pepsi drinkers, for example, “benefit from the network of their fellow consumers because Coke and Pepsi are widely available in restaurants and in vending machines,” claims Timothy J. Muris. A preexisting network of vending machines is admittedly tough for soft drink imitators to replicate. But a barrier to imitation can Read More ›