An overlapping generations model of an exchange economy is considered, with individials having a fininte expected life-span. As the model is designed to be a fully playable game, conditions concerning birth, death, inheritance and bequests are fully specified.

We construct stationary Markov equilibria for an economy with fiat money, one nondurable commodity, countably-many time periods, and a continuum of agents. The total production of commodity remains constant, but individual agents' endowments fluctuate in a random fashion from period to period....

Modeling problems for a monetary economy are discussed and some examples are presented in the context of an infinite-horizon economy with one or two types of traders, who use fiat money to buy a single perishable consumption good. Three instances are considered, all with transactions in fiat...