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I analyze a sequential bargaining model in which players are optimistic about their bargaining power (measured as the probability of making offers), but learn as they play the game. I show that there exists a uniquely predetermined settlement date, such that in equilibrium the players always reach an agreement at that date, but never reach one before it.(More)
Rational agents with differing priors tend to be overoptimistic about their chances of success. In particular, an agent who tries to choose the action that is most likely to succeed, is more likely to choose an action of which he overestimated, rather than underestimated, the likelihood of success. After studying the comparative statics of this mechanism, I(More)
In some games, the impact of higher-order uncertainty is very large, implying that present economic theories may rely critically on the strong common knowledge assumptions they make. Focusing on normal-form games in which the players' action spaces are compact metric spaces, we show that our key condition, called " global stability under uncertainty, "(More)
Present economic theories make a common-knowledge assumption that implies that the first or the second-order beliefs determine all higher-order beliefs. We analyze the role of such closing assumptions at finite orders by instead allowing higher orders to vary arbitrarily. Assuming that the space of underlying uncertainty is sufficiently rich, we show that(More)
We provide a characterization of when an action is rationalizable in a binary action coordination game in terms of beliefs and higher order beliefs. The characterization sheds light on when a global game yields a unique outcome. In particular, we can separate those features of the noisy information approach to global games that are important for uniqueness(More)
We show that in any game that is continuous at infinity, if a plan of action   is rationalizable for a type   , then there are perturbations of   for which following   for an arbitrarily long future is the only rationalizable plan. One can pick the perturbation from a finite type space with common prior. As an application we prove an unusual folk(More)
For a finite set of actions and a rich set of fundamentals, consider the interim rationalizable actions on the universal type space, endowed with the usual product topology. (1) Generically, there exists a unique rationalizable action profile. (2) Every model can be approximately embedded in a dominance-solvable model. (3) For any given rationalizable(More)
Effect of heat stress on the synthesis of soluble heat shock proteins (HSPs) and the regrowth in seminal roots of three cultivated and three wild wheat genotypes was examined. In regrowth experiments, 2-d-old etiolated seedlings were exposed to 23 (control), 32, 35, 37 and 38 degrees C for 24 h, and 35 and 37 degrees C (24 h) followed by 50 degrees C (1 h).(More)
Christian Zehnder, and workshop participants at MIT and Harvard are gratefully acknowledged. Of course, the usual disclaimer applies. 2 A mechanism with low direct cost of use may be preferred to alternatives implementing more efficient allocations. We show this experimentally by giving pairs of subjects the option to agree on a single average price for a(More)