The aggregated expectations hypothesis, described here in full for the
first time, offers a new way of examining likely future outcomes base
d upon the most important contributor-expectations-to the individual d
ecisions which aggregate to create these final macro-outcomes. It also
offers more powerful actors, especially governments, a new tool for i
nfluencing some of those future outcomes. The core concept is that the
future outcome of an issue, economic or political, will be largely de
termined by the expectations of those in the population affected whose
aggregated individual decisions will shape that outcome. (C) 1997 Els
evier Science Inc.