Seasonal bias in household vulnerability to poverty stimates: insights from a natural experiment
Using data from 260 households from the Hadejia-Nguru wetlands, the paper shows that vulnerability to poverty estimates are biased if the data used is seasonal. The seasonal bias in the consumption expenditure is less pronounced than in its variance. The paper further shows that the relative sizes of the seasonal bias in expected consumption expenditure and its variance determines the final magnitude of the bias. However, the bias in the expected consumption expenditure is sufficiently corrected by including seasonal dummy variables. We therefore encourage researchers to consider seasonality when they are modelling consumption expenditure with the aim of estimating vulnerability.
|Date of creation:||29 Apr 2011|
|Date of revision:|
|Contact details of provider:|| Postal: |
Web page: http://mpra.ub.uni-muenchen.de
More information through EDIRC
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Ethan Ligon & Laura Schechter, 2003.
Royal Economic Society, vol. 113(486), pages C95-C102, March.
- Ligon, Ethan & Laura Schechter, 2002. "Measuring Vulnerability," Royal Economic Society Annual Conference 2002 128, Royal Economic Society.
- Ligon, Ethan & Schechter, Laura, 2002. "Measuring Vulnerability," 2002 Annual meeting, July 28-31, Long Beach, CA 19899, American Agricultural Economics Association (New Name 2008: Agricultural and Applied Economics Association).
- Naohito Abe, 2008. "Volatility in Panel Data of Household Expenditure," Hi-Stat Discussion Paper Series d07-237, Institute of Economic Research, Hitotsubashi University.
When requesting a correction, please mention this item's handle: RePEc:pra:mprapa:30716. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Ekkehart Schlicht)
If references are entirely missing, you can add them using this form.