For nearly 50 years, interchange fees have been paid to the card-issuing bank by merchants to cover handling costs, fraud, bad debt and the risk involved in approving a payment. Interchange is the business model that funds a modern payments miracle--that a card issued by almost any bank can transact in milliseconds at almost any merchant. It also the source of much controversy, and our panel of experts will explore the key issues. Regulators in several countries have questioned the collective determination of interchange rates as potential price-fixing. Merchant groups in the U.S. claim that interchange fees are much higher than necessary and have taken legal action against the card networks. In the digital age, is there a better model? If so, how do we get there?