Measuring Risk by Looking at Changes in Inequality: vulnerability in Ecuador
We describe a measure of welfare, "vulnerability", which measures the difference between the highest feasible average level of utility in a population given aggregate resources, and the actual average level of utility. This measure can be decomposed into two components, related to inequality and to risk. We provide methods for computing vulnerability, inequality, and risk using only data on expenditures from repeated cross-sections of household data, and relate these to Atkinson's family of inequality measures. Using methods developed here and household-level Ecuadorean data from 1995 and 2006, we estimate the vulnerability and risk of ï¿½different population groups. Taking the population altogether, we find that the crisis of the late nineties was not only a large shock for the country as a whole, but also greatly increased the risk faced by individual households in the Sierra, risk which was subsequently translated into greater inequality. After 1999, overall risk borne by the average household fell dramatically, with the consequence that inequality remained nearly constant from 1999-2006. Levels of rural risk are considerably greater than are urban; further, rural risks tend to be the consequence of spatial shocks, while urban risks are much more idiosyncratic in nature.
|Date of creation:||25 Jan 2010|
|Date of revision:|
|Contact details of provider:|| Postal: 207 Giannini Hall #3310, Berkeley, CA 94720-3310|
Phone: (510) 642-3345
Fax: (510) 643-8911
Web page: http://www.escholarship.org/repec/are_ucb/
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.:
- Angus Deaton & Christina Paxson, 1993.
"Intertemporal Choice and Inequality,"
NBER Working Papers
4328, National Bureau of Economic Research, Inc.
- Martin Biewen, 2006.
"Variance estimation for generalized entropy and Atkinson inequality indices: The complex survey data case,"
German Stata Users' Group Meetings 2006
04, Stata Users Group.
- Martin Biewen & Stephen P. Jenkins, 2006. "Variance Estimation for Generalized Entropy and Atkinson Inequality Indices: the Complex Survey Data Case," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 68(3), pages 371-383, 06.
- Amin, S. & Rai, A.S. & Topa, G., 2000.
"Does Microcredit Reach the Poor and Vulnerable? Evidence from Nothern Bangladesh,"
28, Chicago - Graduate School of Business.
- Amin, Sajeda & Rai, Ashok S. & Topa, Giorgio, 2003. "Does microcredit reach the poor and vulnerable? Evidence from northern Bangladesh," Journal of Development Economics, Elsevier, vol. 70(1), pages 59-82, February.
- Amin, S. & Rai, A.S. & Topa, G., 1999. "Does Microcredit Reach the Poor and Vulnerable? Evidence from Northern Bangldesh," Working Papers 99-06, C.V. Starr Center for Applied Economics, New York University.
- Sajeda Amin & Ashok S. Rai & Giorgio Topa, 1999. "Does Microcredit Reach the Poor and Vulnerable? Evidence from Northern Bangladesh," CID Working Papers 28, Center for International Development at Harvard University.
- Kocherlakota, Narayana & Pistaferri, Luigi, 2005.
"Asset Pricing Implications of Pareto Optimality with Private Information,"
CEPR Discussion Papers
4930, C.E.P.R. Discussion Papers.
- Narayana Kocherlakota & Luigi Pistaferri, 2009. "Asset Pricing Implications of Pareto Optimality with Private Information," Journal of Political Economy, University of Chicago Press, vol. 117(3), pages 555-590, 06.
- Narayana R Kocherlakota & Luigi Pistaferri, 2005. "Asset Pricing Implications of Pareto Optimality with Private Information," Levine's Bibliography 784828000000000507, UCLA Department of Economics.
- Kocherlakota, Narayana R. & Pistaferri, Luigi, 2005. "Asset pricing implications of Pareto optimality with private information," Discussion Paper Series 1: Economic Studies 2005,29, Deutsche Bundesbank, Research Centre.
- Narayana R. Kocherlakota & Luigi Pistaferri, 2004. "Asset Pricing Implications of Pareto Optimality with Private Information," Levine's Bibliography 122247000000000508, UCLA Department of Economics.
- Narayana R. Kocherlakota & Luigi Pistaferri, 2007. "Asset Pricing Implications of Pareto Optimality with Private Information," Levine's Bibliography 321307000000000701, UCLA Department of Economics.
- Hoddinott, John & Quisumbing, Agnes, 2003. "Methods for microeconometric risk and vulnerability assessments," Social Protection and Labor Policy and Technical Notes 29138, The World Bank.
- Townsend, Robert M, 1994.
"Risk and Insurance in Village India,"
Econometric Society, vol. 62(3), pages 539-91, May.
- Townsend, R.M., 1991. "Risk and Insurance in Village India," University of Chicago - Economics Research Center 91-3, Chicago - Economics Research Center.
- Robert M. Townsend, . "Risk and Insurance in Village India," University of Chicago - Population Research Center 91-3a, Chicago - Population Research Center.
- Bewley, Truman, 1977. "The permanent income hypothesis: A theoretical formulation," Journal of Economic Theory, Elsevier, vol. 16(2), pages 252-292, December.
- Mace, Barbara J, 1991. "Full Insurance in the Presence of Aggregate Uncertainty," Journal of Political Economy, University of Chicago Press, vol. 99(5), pages 928-56, October.
- Jalan, Jyotsna & Ravallion, Martin, 1997.
"Are the poor less well-insured? Evidence on vulnerability to income risk in rural China,"
Policy Research Working Paper Series
1863, The World Bank.
- Jalan, Jyotsna & Ravallion, Martin, 1999. "Are the poor less well insured? Evidence on vulnerability to income risk in rural China," Journal of Development Economics, Elsevier, vol. 58(1), pages 61-81, February.
- Stefan Dercon & Pramila Krishnan, 2000. "Vulnerability, seasonality and poverty in Ethiopia," Journal of Development Studies, Taylor & Francis Journals, vol. 36(6), pages 25-53.
- Glewwe, Paul & Hall, Gillette, 1998. "Are some groups more vulnerable to macroeconomic shocks than others? Hypothesis tests based on panel data from Peru," Journal of Development Economics, Elsevier, vol. 56(1), pages 181-206, June.
- Pritchett, Lant & Suryahadi, Asep & Sumarto, Sudarno, 2000. "Quantifying vulnerability to poverty - a proposed measure, applied to Indonesia," Policy Research Working Paper Series 2437, The World Bank.
- Ligon, Ethan & Schechter, Laura, 2002.
2002 Annual meeting, July 28-31, Long Beach, CA
19899, American Agricultural Economics Association (New Name 2008: Agricultural and Applied Economics Association).
- Atkinson, Anthony B., 1970. "On the measurement of inequality," Journal of Economic Theory, Elsevier, vol. 2(3), pages 244-263, September.
- Christiaensen, Luc J.M. & Boisvert, Richard N., 2000. "On Measuring Household Food Vulnerability: Case Evidence from Northern Mali," Working Papers 127676, Cornell University, Department of Applied Economics and Management.
- Deaton, Angus, 1985. "Panel data from time series of cross-sections," Journal of Econometrics, Elsevier, vol. 30(1-2), pages 109-126.
When requesting a correction, please mention this item's handle: RePEc:cdl:agrebk:qt8vj75725. 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: (Lisa Schiff)
If references are entirely missing, you can add them using this form.