In this session of the Fifth International Debarment Colloquium, panelists will discuss the growing relevance of competition law in the context of debarment. Price fixing, bid rigging, and other collusive behavior have long been common reasons to exclude a supplier from the procurement marketplace. At the same time, the decision to debar a supplier can itself impact the competitive nature of the marketplace and the availability of contractors. Do the potentially anti-competitive effects of debarment impact the broader goals of procurement? What are the main challenges facing procurement systems, both at the national level and among multilateral development banks (MDBs), to protect against anti-competitive behavior by suppliers? What other potential remedies besides debarment are available to these systems?