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.
| Original language | English |
|---|---|
| Pages (from-to) | 757-760 |
| Number of pages | 4 |
| Journal | Applied Economics Letters |
| Volume | 10 |
| Issue number | 12 |
| DOIs | |
| State | Published - 10 Oct 2003 |
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