heteroskedasticity

Italian translation: eteroschedasticità

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00:55 Sep 25, 2020
English to Italian translations [PRO]
Bus/Financial - Economics
Additional field(s): Business/Commerce (general), Economics, Finance (general), Investment / Securities, Mathematics & Statistics
English term or phrase: heteroskedasticity
Definition from Investopedia:
In statistics, heteroskedasticity (or heteroscedasticity) happens when the standard errors of a variable, monitored over a specific amount of time, are non-constant. With heteroskedasticity, the tell-tale sign upon visual inspection of the residual errors is that they will tend to fan out over time

Example sentence(s):
  • Most real world data will probably be heteroskedastic. However, one can still use ordinary least squares without correcting for heteroskedasticity because if the sample size is large enough, the variance of the least squares estimator may still be sufficiently small to obtain precise estimates. Methods for Detecting and Resolving...
  • Heteroskedasticity can also occur if there are subpopulation differences or other interaction effects (e.g. the effect of income on expenditures differs for whites and blacks). (Again, the problem arises from violation of the assumption that no such differences exist or have already been incorporated into the model.) Richard Williams, Univ. of Notre Dame
  • If heteroskedasticity does not cause bias or inconsistency in he OLS estimators, why did we introduce it as one of the Gauss-Markov assumptions? Hedibert
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Italian translation:eteroschedasticità
Definition:
Una famiglia di variabili aleatorie; si dice eteroschedastica se le sue componenti non hanno tutte la stessa varianza. Il concetto di eteroschedasticita si contrappone a quello di omoschedasticità
Selected response from:

Giuseppe Emanuele Bertagna
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4 KudoZ points were awarded for this answer



Summary of translations provided
5 +4eteroschedasticità
Giuseppe Emanuele Bertagna


  

Translations offered


3 hrs   confidence: Answerer confidence 5/5 peer agreement (net): +4
eteroschedasticità


Definition from Vocabolario Treccani:
Una famiglia di variabili aleatorie; si dice eteroschedastica se le sue componenti non hanno tutte la stessa varianza. Il concetto di eteroschedasticita si contrappone a quello di omoschedasticità

Example sentence(s):
Explanation:
--
Giuseppe Emanuele Bertagna
Local time: 22:51
Native speaker of: Native in ItalianItalian
PRO pts in category: 4

Votes in favor of/against selecting this as the best translation of the term asked
Yes  Angie Garbarino
2 hrs

Yes  Emanuele Vacca
3 hrs

Yes  Inter-Tra: https://it.qwe.wiki/wiki/Heteroscedasticity + https://www.performancetrading.it/Documents/PmEconometria/Pm...
7 hrs

Yes  Rossella Zugan: yes
4 days
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