Theoretical work has suggested that contact between firms in different markets can facilitate tacit collusion. Empirical work on this link has been limited. We address the paucity of empirical evidence with a novel plant-level dataset for the cement industry during the Great Depression. We find...

This is a survey of the economic principles that underlie antitrust law and how those principles relate to competition policy. We address four core subject areas: market power, collusion, mergers between competitors, and monopolization. In each area, we select the most relevant portions of...

The arm's length principle states that the transfer price between two associated enterprises should be the price that would be paid for similar goods in similar circumstances by unrelated parties dealing at arm's length with each other. This paper examines the effect of the arm's length...

This paper is about conscious parallelism in a duopoly with differentiated products. Conscious parallelism is modelled by a "policy of fixed relative prices" (frp) i. e. starting from a competitive equilibrium both duopolists vary prices by the same percentage. This price increasing continues...

Customer-side price transparency affects sustainability of collusion in a duopoly model of spatial product differentiation with elastic demand. When product differentiation is significant, more transparency facilitates collusion as measured by the critical discount factor. For the case where...

In many capacity-intensive industries (e.g. electricity, bandwidth), exchanges allow firms, including competitors, to buy and sell wholesale capacity before selling on the retail market. Capacity exchanges allow firms to smooth demand shocks, but do they also facilitate tacit collusion to limit...

By analysing an infinitely repeated game where unit costs alternate stochastically between low and high states and where firms follow a price-matching punishment strategy, we demonstrate that the best collusive prices are rigid over time when the two cost levels are sufficiently close. This...