What happened
When people face higher financial stakes in decision-making games, they think more carefully and make smarter choices — but they also become harder to predict because their reasoning gets more complex. This happens through two routes: higher stakes reduce careless mistakes, and they push people to spend more mental effort thinking through what others will do.
Why it matters
This is a lab-verified explanation of how incentives actually change human behavior — not through willpower or motivation alone, but by forcing deeper reasoning. Understanding this matters for designing systems where stakes matter: markets, negotiations, contests, and any setting where people's choices depend on guessing what others will do.