Size corrected significance tests in seemingly unrelated regressions with autocorrelated errors

Research output: Contribution to journalArticlepeer-review


Colleges, School and Institutes

External organisations

  • University of Ioannina
  • Department of Economics; Athens University of Economics and Business; Athens Greece


Refined asymptotic methods are used to produce degrees-of-freedom- adjusted Edgeworth and Cornish-Fisher size corrections of the t and F testing procedures for the parameters of a S.U.R. model with serially correlated errors. The corrected tests follow the Student-t and F distributions, respectively, with an approximation error of order O(τ3), where τ=1/T√ and T is the number of time observations. Monte Carlo simulations provide evidence that the size corrections suggested hereby have better finite sample properties, compared to the asymptotic testing procedures (either standard or Edgeworth corrected), which do not adjust for the degrees of freedom.


Original languageEnglish
JournalJournal of Time Series Econometrics
Issue number1
Early online date14 Apr 2016
Publication statusPublished - 1 Jan 2017


  • AR(1) errors, Asymptotic approximations, Linear regression, S.U.R. models, Stochastic expansions

ASJC Scopus subject areas