Description
Return a supplied commitment-device expected-benefit comparison.
Behavioral-economics tasks compare supplied payoffs, reference points, budgets and observed choices. A gap, dominance flag or response fraction illustrates a declared convention without identifying a psychological bias, predicting real choices or selecting a suitable financial action.
Return a supplied commitment-device expected-benefit comparison.
When to use this tool
Use Commitment Device Fee Break Even Term when checking the stated experimental payoff, budget, reference or choice convention.
How to use the tool and how it works
- Enter successBenefit, baselineSuccess, deviceSuccess, fee. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read benefitIncrease, netExpectedGain, breakEvenFee. Use the output convention below.
Return a supplied commitment-device expected-benefit comparison. Require nonnegative successBenefit/fee and both success probabilities in [0,1]; benefitIncrease = benefit*(device-baseline), netExpectedGain subtracts fee, breakEvenFee equals benefitIncrease.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| successBenefit | Success Benefit | Required. Finite number; minimum 0. |
| baselineSuccess | Baseline Success | Required. Finite number; minimum 0; maximum 1. |
| deviceSuccess | Device Success | Required. Finite number; minimum 0; maximum 1. |
| fee | Fee | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| benefitIncrease | Benefit Increase | Required. Finite number. |
| netExpectedGain | Net Expected Gain | Required. Finite number. |
| breakEvenFee | Supplied success-benefit increase, which can be negative when deviceSuccess is lower than baseline. | Required. Finite number. |
{
"input": {
"successBenefit": 100,
"baselineSuccess": 0.4,
"deviceSuccess": 0.7,
"fee": 20
},
"output": {
"benefitIncrease": 29.999999999999993,
"netExpectedGain": 9.999999999999993,
"breakEvenFee": 29.999999999999993
}
}Limitations and assumptions
- A negative break-even fee is retained; probabilities and causal benefit are supplied rather than established experimentally.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use a well-defined study design and complete data to estimate behavior; assess real financial rights, consequences and uncertainty independently.
References
Similar or alternative tools
- Default Opt Out Relative Frequency Term
Return observed opt-out fractions and a relative frequency.
- Mental Account Transfer Fee Term Tool
Calculate mental account transfer fee term from explicit caller-supplied inputs.