We examine the impact to date of the Reserve Bank of Australia's decision to reduce interchange fees on credit cards in Australia by almost half. We find that, in the short run, issuers have recovered between 30 and 40 percent of the loss of interchange fees. Merchants have benefited from lower...

Software platforms are the invisible engines that have created, touched, or transformed nearly every major industry for the past quarter century. They power everything from mobile phones and automobile navigation systems to search engines and web portals. They have been the source of enormous...

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...