Human subjects decide when to sink a fixed cost C to seize an irreversible investment opportunity whose value V is governed by Brownian motion. The optimal policy is to invest when V first crosses a threshold V* = (1 + w*)C, where the wait option premium w* depends on drift, volatility, and...

Human subjects decide when to sink a fixed cost "C" to seize an irreversible investment opportunity whose value "V" is governed by Brownian motion. The optimal policy is to invest when "V" first crosses a threshold "V"* = (1 + "w"*)"C", where the wait option premium "w"* depends on drift,...

We report laboratory experiments that use new, visually oriented software to explore the dynamics of 3x3 games with intransitive best responses. Each moment, each player is matched against the entire population, here 8 human subjects. A "heat map" offers instantaneous feedback on current profit...