Sugarscape is not the only agent-based model that has started to explore the pattern of trade.

ECONOMIST: Social science

Silicon Valley pretty much invented the "free agent" model of hiring for new skills rather than training and letting workers go once those skills aren't needed.

WSJ: 'Why Companies Aren't Getting the Employees They Need': The Author Follows Up

Two more authors, disgruntled with the standard approach to getting fiction published, have found success without a literary agent, thanks to the Kindle model.

FORBES: Kindle Approach Leads British Pair To Major Book Deal

The charred vehicle was the same make and model as the one spotted by the Border Patrol agent hours earlier.

CNN: 5 bodies found in burned-out SUV in Arizona desert

Bond says this model had a shortcoming though, in that once the healing agent was used, it couldn't be replenished.

CNN: The emerging world of self-healing materials

In Ms Duong's model, each agent quickly learns to tell which other agents sell the produce needed to complement its own diet.

ECONOMIST: Social science