Price-matching guarantees (PMGs) are offers to match or beat a competitor's price on a specific item. Such guarantees are extremely common in U.S. retail practice, and appear on their face to be very beneficial to consumers because they make an implicit promise to the consumer that she "won't...

Price-matching guarantees (PMGs) are offers to match a competitor's price on a specific item. Such guarantees are extremely common in U.S. retail practice, and their impact has been studied in several published papers. The existing analytic literature models each retailer as a single-product...