This paper reports on an experiment designed to test whether pairs of individuals are able to exploit ex ante efficiency gains in the sharing of a risky financial prospect. Observations from a previous experiment had suggested a general rejection of efficiency in favour of ex post equality. The...

There is now overwhelming experimental evidence that individuals systematically violate the axioms of Expected Utility theory. In reality, however, many economic decisions are taken by, or on behalf of, groups whose members have a joint stake in those decisions. This paper reports on an...

This article is connected with recent attempts to estimate EU and Generalised EU preference functionals using (complete ranking) experimental data and maximum likelihood estimation techniques. In particular, we explore, using Monte Carlo techniques, the power of such procedures in correctly...

Two recent papers, Harless and Camerer (1994) and Hey and Orme (1994) are both addressed to the same question: which is the "best" theory of decision making under risk? As an essential part of their separate approaches to an answer to this question, both sets of authors had to make an assumption...