Likewise fragility is defined as a concave sensitivity to stressors, leading to a negative sensitivity to increase in volatility. The relation between fragility, convexity, and sensitivity to disorder is mathematical, obtained by theorem, not derived from empirical data mining or some historical narrative. It is a priori.
unearned interest. Amount deducted as advance interest from a loaned sum. This amount is recorded as a liability in the books of the lending institution, and is gradually decreased as it is recognized as earned income over the life of the loan. Also called unearned discount.
Unearned premium. Unearned premium is the portion for an insurance written premium which is considered unearned by the insurer. It is the written premium less the earned premium. The unearned premium would be returned to the insured if the policy is canceled using pro rata cancellation method, when the policy is cancelled with no penalty.