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A robust approach to dealing with zero expenditures on mobile communications

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  • Seung-Hoon Yoo

Abstract

Conventional parametric approach to dealing with zero expenditures is not robust to heteroscedastic and/or non-normal error structure. This paper applies symmetrically censored least squares estimation as a robust approach to dealing with zero expenditures on mobile communications in Seoul, Korea. The result of specification test indicates the robust approach outperforms the parametric approach significantly.

Suggested Citation

  • Seung-Hoon Yoo, 2003. "A robust approach to dealing with zero expenditures on mobile communications," Applied Economics Letters, Taylor & Francis Journals, vol. 10(12), pages 757-760.
  • Handle: RePEc:taf:apeclt:v:10:y:2003:i:12:p:757-760
    DOI: 10.1080/1350485032000138962
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    References listed on IDEAS

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    1. Powell, James L, 1986. "Symmetrically Trimmed Least Squares Estimation for Tobit Models," Econometrica, Econometric Society, vol. 54(6), pages 1435-1460, November.
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    5. Newey, Whitney K., 1987. "Specification tests for distributional assumptions in the Tobit model," Journal of Econometrics, Elsevier, vol. 34(1-2), pages 125-145.
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