Accounting for psychological factors in scenario-based stress testing

“It’s not the shock, but the response to the shock, that most often changes the outcome.” This familiar phrase rings especially true in scenario stress testing. Planners are not just mapping external events—they are also accounting for the human tendency to overreact or overlook the less obvious implications of a crisis.

Cognitive biases, such as confirmation bias or anchoring, can distort how scenarios are designed and interpreted. When groupthink takes hold, teams may disregard dissenting views, leading to overconfidence in a single narrative. Recognizing these psychological dynamics is as crucial as tracking policy changes or market data.

Practical frameworks for scenario planning now often include checkpoints for surfacing assumptions, seeking out contrarian opinions, and reviewing past decisions for evidence of bias. The goal is not to eliminate human error—an impossible task—but to design processes that make such errors more visible and less likely to undermine the plan.

With warm regards,