Hugo M. Mialon

TL;DR: In this paper, the authors attempt to resolve the controversies concerning the concept of barriers to entry by contrasting the definitions of an entry barrier proposed in the economics literature and introduce a classification system to clear up the existing confusion.

TL;DR: In this paper, the authors expose the conflicts between eight definitions of a barrier to entry that have been proposed in the economics literature and introduce four new concepts, namely economic, antitrust, standalone, and ancillary barriers to entry.

TL;DR: The authors argue that it is rational for people to condition behavior on sunk costs, because of informational content, reputational concerns, or financial and time constraints, once all the elements of the decision-making environment are taken into account.

TL;DR: In this paper, the authors compare private and public enforcement of the antitrust laws in a simple strategic model of antitrust violation and lawsuit, and highlight the tradeoff that private firms are initially more likely than the government to be informed about antitrust violations, but are also more likely to use the laws strategically, to the disadvantage of consumers.

TL;DR: The authors argue that in a broad range of environments, reacting to sunk costs is actually rational, because agents may rationally react to these costs because of informational content, reputational concerns, or financial and time constraints.