Under most federal environmental laws and some health and safety laws, states may apply for "primacy," that is, authority to implement and enforce federal law, through a process known as "authorization." Some observers fear that states use authorization to adopt more lax policies in a regulatory...

This Chapter provides a survey of the economics literature on multi-sided platforms with particular focus on competition policy issues, including market definition, mergers, monopolization, and coordinated behavior. It provides a survey of the general industrial organization theory of...

Competition in many important industries centers on investment in intellectual property. Firms engage in dynamic, Schumpeterian competition for the market, through sequential winner-take-all races to produce drastic innovations, rather than through static price/output competition in the market....