The digital revolution of pricing enables retailers to change their prices more frequently than ever before. While the industry endorses this development, critics fear it could foster excessive price fluctuations. This paper studies price fluctuations in the context of brick-and-mortar retailing...

Competitors privately sharing price intentions is universally prohibited under antitrust/competition law. In contrast, there is no common well-accepted treatment of competitors privately sharing prices. This paper shows that firms sharing prices leads to higher prices. Based on this theory of...