All the glossaryGlossary

Actuarial science

What gets measured and what gets reserved: pricing, development triangles, loss distributions, capital models, and the biases each of those tools carries with it.

116 terms
A priori loss ratioAcquisition costsActuarial fairnessActuarial non-stationarityAdverse selectionAggregation of capital requirementsAllocated loss adjustment expenses (ALAE)As-if restatingAverage claim costBenktander methodBerliner criteriaBiometric assumptionsBornhuetter-Ferguson methodBuhlmann credibilityCape Cod methodCapital allocationCapping (large loss capping)Catastrophe model (cat model)CDF: Cumulative development factorChain ladderClaim frequencyClaims inflationClaims reservesClayton copulaClimate stress testClimate-conditioned PMLCoherent risk measureCompound Poisson distributionCopulaCramer-Lundberg modelCredibility theoryCyber risk quantification (CRQ)Damage ratioDevianceEarned premiumsEconomic capitalEndogeneityExceedance probabilityExpense ratioExposureExposure curveExposure ratingExtreme value theoryFairness through unawarenessFat-tailed distributionFirst loss scaleFrequency and severityGeneralized additive modelGeneralized linear model (GLM)Generalized Pareto distributionGross premiumGumbel copulaHill estimatorIncreased limit factorsIncurred lossesIndexationIndirect discriminationInvestment incomeIPCC SSP scenariosKendall tau and Spearman rhoKnightian uncertaintyLaw of large numbers in insuranceLDF: Loss development factorLink functionLognormal distributionLoss adjustment expenses (LAE)Loss development triangle (chain ladder)Mack methodMBBEFD curveMean excess plotModel riskMonte Carlo simulationMoral hazardMortality improvement trendMunich chain ladderNatural hedgeNegative binomial distributionNGFS scenariosNo-claims discountOperating ratioORSA (Own Risk and Solvency Assessment)Over-dispersed Poisson bootstrapPaid and incurred trianglesPanjer recursionPeaks over thresholdPrior-year reserve developmentProbable Maximum Loss (PML) / Estimated Maximum Loss (EML)Pure premiumRating relativityRating segmentationRegulatory correlation matrixReturn periodRisk horizonRisk loadingRuin theorySecondary perilsSeveritySolvency Capital Requirement (SCR)Solvency II internal modelSolvency II standard formulaStudent t copulaTail correlationTail development factorTerritorial ratingTragedy of the commonsTrendTrend riskTweedie familyUltimate lossUnallocated loss adjustment expenses (ULAE)Under-reservingUndertaking specific parameterUnearned premium reserveValue at Risk and Tail Value at Risk (VaR, TVaR)Veil of ignoranceWritten premiums
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