{"type":"standard","title":"Granger causality","displaytitle":"Granger causality","namespace":{"id":0,"text":""},"wikibase_item":"Q2630107","titles":{"canonical":"Granger_causality","normalized":"Granger causality","display":"Granger causality"},"pageid":1648224,"thumbnail":{"source":"https://upload.wikimedia.org/wikipedia/commons/thumb/7/7d/GrangerCausalityIllustration.svg/330px-GrangerCausalityIllustration.svg.png","width":320,"height":161},"originalimage":{"source":"https://upload.wikimedia.org/wikipedia/commons/thumb/7/7d/GrangerCausalityIllustration.svg/512px-GrangerCausalityIllustration.svg.png","width":512,"height":257},"lang":"en","dir":"ltr","revision":"1289116120","tid":"374e032b-2a90-11f0-8ace-5892ecd07019","timestamp":"2025-05-06T15:38:54Z","description":"Statistical hypothesis test for forecasting","description_source":"local","content_urls":{"desktop":{"page":"https://en.wikipedia.org/wiki/Granger_causality","revisions":"https://en.wikipedia.org/wiki/Granger_causality?action=history","edit":"https://en.wikipedia.org/wiki/Granger_causality?action=edit","talk":"https://en.wikipedia.org/wiki/Talk:Granger_causality"},"mobile":{"page":"https://en.m.wikipedia.org/wiki/Granger_causality","revisions":"https://en.m.wikipedia.org/wiki/Special:History/Granger_causality","edit":"https://en.m.wikipedia.org/wiki/Granger_causality?action=edit","talk":"https://en.m.wikipedia.org/wiki/Talk:Granger_causality"}},"extract":"The Granger causality test is a statistical hypothesis test for determining whether one time series is useful in forecasting another, first proposed in 1969. Ordinarily, regressions reflect \"mere\" correlations, but Clive Granger argued that causality in economics could be tested for by measuring the ability to predict the future values of a time series using prior values of another time series. Since the question of \"true causality\" is deeply philosophical, and because of the post hoc ergo propter hoc fallacy of assuming that one thing preceding another can be used as a proof of causation, econometricians assert that the Granger test finds only \"predictive causality\". Using the term \"causality\" alone is a misnomer, as Granger-causality is better described as \"precedence\", or, as Granger himself later claimed in 1977, \"temporally related\". Rather than testing whether X causes Y, the Granger causality tests whether X forecasts Y.","extract_html":"
The Granger causality test is a statistical hypothesis test for determining whether one time series is useful in forecasting another, first proposed in 1969. Ordinarily, regressions reflect \"mere\" correlations, but Clive Granger argued that causality in economics could be tested for by measuring the ability to predict the future values of a time series using prior values of another time series. Since the question of \"true causality\" is deeply philosophical, and because of the post hoc ergo propter hoc fallacy of assuming that one thing preceding another can be used as a proof of causation, econometricians assert that the Granger test finds only \"predictive causality\". Using the term \"causality\" alone is a misnomer, as Granger-causality is better described as \"precedence\", or, as Granger himself later claimed in 1977, \"temporally related\". Rather than testing whether X causes Y, the Granger causality tests whether X forecasts Y.
"}{"slip": { "id": 153, "advice": "Try using an old idea."}}
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{"fact":"The cat's footpads absorb the shocks of the landing when the cat jumps.","length":71}
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