In the framework of symmetric Cournot oligopoly, this paper provides two minimal sets of assumptions on the demand and cost functions that imply respectively that, as the number of firms increases, the minimal and maximal equilibria lead to (i) decreasing industry price and increasing or decreasing per-firm output; and (ii) increasing industry price (and decreasing per firm output.) In both cases, per-firm profits are decreasing.The analysis relies crucially on lattice-theoretic methods and yields general, unambiguous and easily interpretable conclusions of a global nature. As a byproduct of independent interest, new insight into the existence of Cournot equilibrium is developed.
We explore the questions of whether and why out-of-state buyers pay more for real estate than their in-state counterparts. Theoretically, we develop a model capable of explaining a premium if out-of-state buyers have high search costs, upwardly biased beliefs about prices or an unusually short time horizon to purchase. Empirically, we find that out-of-state buyers pay a statistically significant and economically meaningful premium for apartment complexes in the Phoenix area. We also find some evidence consistent with the premium being driven by high search costs, biased beliefs (anchoring) and haste associated with out-of-state buyers. Copyright 2004 by the American Real Estate and Urban Economics Association
Lockups are agreements made by insiders of stock-issuing firms to abstain from selling shares for a specified period of time after the issue. Brav and Gompers (2003) suggest that lockups are a bonding solution to a moral hazard problem and not a signaling solution to an adverse selection problem. We challenge this conclusion theoretically and empirically. In our model, insiders of good firms signal by putting and keeping (locking up) their money where their mouths are. Our model yields two comparative statics: lockups should be shorter when a firm is i) more transparent and/or ii) more risky. Using a sample of 4,013 initial public offerings and 3,279 seasoned equity offerings between 1988 and 1999, we find empirical support for our theoretical predictions.
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