“Econometrics may be defined as the quantitative analysis of actual economic phenomena based on the concurrent development of theory and observation, related by appropriate methods of inference.” MayEconomicTheoryDevelopmentMethodObservationDefinedAnalysisRelatedAppropriateInferenceEconometrics Author:Paul Samuelson
“Being Americans, we prosecute wars to win them, not to have reasonable response, not to have appropriate levels of retaliation. Our theory is you start bombing our cities; we're going to defeat you and make it impossible.” WarWinningLevelsCitiesImpossibleTheoryResponseDefeatReasonableAppropriateBombingRetaliation Author:Newt Gingrich
“However we select from nature a complex [of phenomena] using the criterion of simplicity, in no case will its theoretical treatment turn out to be forever appropriate (sufficient).... I do not doubt that the day will come when [general relativity], too, will have to yield to another one, for reasons which at present we do not yet surmise. I believe that this process of deepening theory has no limits.” BelieveReasonTurnsI BelieveProcessCasesForeverDoubtAtheismTheoryLimitsComplexesSimplicityPositive AtheismSufficientAppropriateTreatmentYieldTheoreticalCriteriaSelectRelativityGeneral Relativity Author:Albert Einstein
“I end up improvising in almost everything to some degree, 'cause it's often necessary on movies. The script is one thing, and it's this kind of theory of what you're going to do, and then you get there on the day and you realize, "Oh, the script is not appropriate to this room, the door's over here."” KindEndsCausesRealizingRoomsDoorsOne ThingTheoryDegreesScriptsAppropriateImprovising Author:John C. Reilly
“Classic economic theories recognize public goods aspects of one kind or another - the need for economic intervention in, obviously, the supply of infrastructure and of education. We're not supplying that infrastructure at an appropriate rate today. I don't doubt it isn't just money; it's organization and goals and so forth.” NeedsKindTodayGoalDoubtEconomicTheoryAspectOrganizationRateClassicAppropriateGoodsInfrastructureInterventionEconomic Theory Author:Kenneth Arrow