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Ex-ante is used most commonly in the commercial world, where results of a particular action, or series of actions, are forecast (or intended). The opposite of ex-ante is ex-post (actual) (or ex post). Buying a lottery ticket loses you money ex ante (in expectation), but if you win, it was the right decision ex post. [2]
Post hoc (sometimes written as post-hoc) is a Latin phrase, meaning "after this" or "after the event". Post hoc may refer to: Post hoc analysis or post hoc test, statistical analyses that were not specified before the data were seen; Post hoc theorizing, generating hypotheses based on data already observed
Post hoc ergo propter hoc (Latin: 'after this, therefore because of this') is an informal fallacy that states "Since event Y followed event X, event Y must have been caused by event X." It is a fallacy in which an event is presumed to have been caused by a closely preceding event merely on the grounds of temporal succession.
post festum: after the feast: Too late, or after the fact post hoc ergo propter hoc: after this, therefore because of this: A logical fallacy where one assumes that one thing happening after another thing means that the first thing caused the second. post meridiem (p.m.) after midday: The period from noon to midnight (cf. ante meridiem) post ...
ex post: from after "Afterward", "after the event". Based on knowledge of the past. Measure of past performance ex post facto: from a thing done afterward: Said of a law with retroactive effect ex professo: from one declaring [an art or science] Or 'with due competence'. Said of the person who perfectly knows his art or science. Also used to ...
ex post: from after Based on knowledge of the past. ex post facto: from a thing done afterward Commonly said as "after the fact." ex post facto law: A retroactive law. E.g. a law that makes illegal an act that was not illegal when it was done. ex proprio motu: by [one's] own motion Commonly spoken as "by one's own accord." ex rel
In a scientific study, post hoc analysis (from Latin post hoc, "after this") consists of statistical analyses that were specified after the data were seen. [ 1 ] [ 2 ] They are usually used to uncover specific differences between three or more group means when an analysis of variance (ANOVA) test is significant. [ 3 ]
An ex ante moral hazard is a change in behavior prior to the outcome of the random event, whereas ex post involves behavior after the outcome. [45] For instance, in the case of a health insurance company insuring an individual during a specific time period, the final health of the individual can be thought of as the outcome.