Regret Minimization Without Guessing Your Future
Use regret as the avoidable gap between a chosen outcome and the best outcome that was realistically available in the same future scenario.
Example: fixed rate or variable rate
Under stable rates the variable option is cheaper by 2,000. Under a sharp increase the fixed option is cheaper by 8,000. A household unable to absorb the larger gap may reasonably minimize maximum regret even without predicting rates.
Regret needs scenarios, not feelings
Imagining disappointment can favor whichever option is described most vividly. A regret table holds the future constant, calculates how each option performs, and measures the gap from the better result in that scenario. It is most useful when probabilities are weak but downside comparison still matters.
Build a small regret table
- Choose three coherent future conditions.
- Estimate each option in the same unit.
- Find the better result within each scenario.
- Compare the largest avoidable gap for each option.
Regret is not every bad outcome
An outcome can be painful without being avoidable by the alternative. Compare only the difference caused by the choice, and keep affordability constraints separate.
The decision rule
What to record before acting
Use regret when scenario consequences are clearer than their probabilities and the worst avoidable gap matters.
Apply the rule in context with calculate maximum regret across the same scenarios. Keep the evidence and assumptions with the decision so an outcome review can distinguish reasoning from luck.
Continue within decision skills
A Decision Confidence Scale That Stays Honest
Rate confidence from the quality and agreement of evidence, not from enthusiasm, consensus, or the number of decimal places in a score.
A Decision Confidence Scale That Stays HonestWhen Not to Make a Decision Yet
Delay a decision when options are not yet eligible, authority is unclear, a material fact will arrive soon, or the cost of acting now exceeds waiting.
When Not to Make a Decision Yet