We build cities "from the bottom up" by clustering areas obtained from high-resolution data, and find that a beautiful Zipf's law for population and for areas, for cities about 12,000 inhabitants in the USA and 5,000 inhabitants in Great Britain.
Take a production economy which has good business cycle properties: to fix its asset pricing properties (e.g. to have a high and volatile returns to equities), add disaster risk in the right places, i.e. "disasterize" this economy.
Brief, non-technical summary of the framework for achieving tractable incentive contracts developed in "Tractability in Incentive Contracting" and used in "The Effect of Risk on the CEO Market and Dynamic CEO Compensation."
A neoclassical model of both total salary and incentives quantitatively explains various apparently paradoxical features of the data, such as the negative empirical scaling of the Jensen-Murphy incentives with firm size and their seemingly low level.
A tractable model of CEO pay. An upshot: the six-fold rise in CEO pay between 1980 and 2003 can be fully attributed to the six-fold increase in market capitalization of large companies during that period.
An experimental investigation of the following "directed cognition" boundedly rational algorithm: "At each decision point, agents act as if their next set of search operations were their last opportunity for search."