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.
Entrenched means firmly established and difficult or unlikely to change. Interests in this context could be defined as expectations of profit or benefits. Entrenched interests would then be expectations of profit or benefits that are firmly established and unlikely to change: It is time to stand up to the narrow, entrenched interests that are blocking progress for all.