Market Definition and the Measurement of Multimarket Contact. Issue 2 (4th May 2019) - Feinberg, Robert M.
Abstract: The focus of this note is the appropriate definition of markets in which two (or more) firms compete for the purpose of measuring multimarket contact (MMC). Through several examples, it is shown that one cannot assume a particular trade-off with MMC as a broader or narrower approach to market definition is taken, suggesting that research using MMC measures seek robustness with alternative market definitions.