How Far Can Screens Go in Distinguishing Explicit from Tacit Collusion? New Evidence on the Libor Setting

Rosa Abrantes-Metz, Albert Metz, Mar 13, 2012

A class of empirical analysis known as “screening” uses commonly available data such as prices, costs, market shares, bids, transaction quotes, spreads, and volumes to identify patterns that are anomalous or highly improbable under ordinary competitive conditions. Screens can signal the possibility of cheating in a market or industry, as well as identify who may be engaging in that behavior. Surveys of screening methodologies and their mu