The logic of backward induction (BI) in perfect information (PI) games has been intensely scrutinized for the past quarter century. A major development came in 2002, when P. Battigalli and M. Sinischalchi (BS) showed that an outcome of a PI game is consistent with common strong belief of utility...

With cheap talk, more can be achieved by long conversations than by a single message - even when one side is strictly better informed than the other.

Evidence is adduced that the sages of the ancient Babylonian Talmud, as well as some of the medieval commentators theorem, were well aware of sophisticated concepts of modern theories of risk-bearing.

A lecture explaining the causes of the 2008-9 world financial crisis in terms of ordinary economic processes. The lecture was delivered at the 39th St. Gallen Symposium, University of St. Gallen, Switzerland, 8 May 2009.

A response to criticism of the paper "On the Matter of the Man with Three Wives," Moriah 22 (1999), 98- 107 (see also Rationality Center DP 102, June 1996). The Moriah paper is a non- mathematical account, written in Hebrew for the Rabbinic public, of "Game- Theoretic Analysis of a Bankruptcy...

Define the riskiness of a gamble as the reciprocal of the absolute risk aversion (ARA) of an individual with constant ARA who is indifferent between taking and not taking that gamble. We characterize this index by axioms, chief among them a "duality" axiom which, roughly speaking, asserts that...

The Presidential Address at the First International Congress of the Game Theory Society, held in Bilbao, Spain, in July of 2000. The address contains a discussion of the Congress, of the functions and activities of the Society, of the Logo of the Society, of past accomplishments of the...

This paper undertakes a careful examination of the concept of conditional probability and its use. The ideas are then applied to resolve a conceptual puzzle related to Savage's "Sure-Thing Principle."