References

Emergent Economies for Role Playing Games
2010 research paper by Jonathon Doran and Ian Parberry

2012 version of the research paper

Procedural Content Generation (on the website of Ian Parberry)

BazaarBot: An Open-Source Economics Engine

Other implementations

BazaarBot
A simple free market simulator engine written in Haxe based on the work of Jonathon Doran and Ian Parberry.
EconomicSim
A simulation of a simple economic market written in Ruby.
Economia.js
Economia.js is a JavaScript port of BazaarBot.
Denarius
A JavaScript agent-based economic simulation, inspired by BazaarBot.