32
Stata Technical Bulletin
STB-48
The poverty line is set at 179.3333333333334 units
(2/3 of median value)
Headcount ratio % 5.102
Poverty gap ratio % 0.887
Sen index *100 1.326
Efweight= size]
In order to study poverty incidence in a particular sub-population, we can save the value of the poverty line computed over
the whole population (see Saved Results below) and re-do the analysis by specifying the saved poverty line and selecting the
appropriate observations:
. Ioc line2 = $S_4
. poverty eqinc if size<5 [fw=size] , h pgr s line('line2z)
—
Poverty measures of eqinc
Your selection is made of 180 observations.
The following poverty analysis has been using the 180 non-missing
observations for eqinc in your selection.
The poverty line is set at 179.3333 units
Headcount ratio % 6.812
Poverty gap ratio % 1.184
Sen index *100 1.771
Efweight= size]
Saved Results
poverty saves a number of results:
S_1 total number of observations in the data
S_2 number of observations used to compute the indices
S-3 weighted number of observations
S_4 value of the poverty line
S_5 weighted number of observations identified as poor
(the following results are only available if the measure has been requested)
|
S_6 |
headcount ratio [FGT(0)] |
S-17 |
FGT(4) |
|
S.7 |
aggregate poverty gap |
S-18 |
FGT(4.5) |
|
S-8 |
poverty gap ratio [FGT(1)] |
S-19 |
FGT(5) |
|
S-9 |
income gap ratio |
S-20 |
CHU(0.10) |
|
S-IO |
Watts index |
S-21 |
CHU(0.25) |
|
S-Il |
FGT(0.5) |
S-22 |
CHU(0.50) |
|
S-12 |
FGT(1.5) |
S-23 |
CHU(0.75) |
|
S.13 |
FGT(2) |
S _24 |
CHU(0.90) |
|
S-14 |
FGT(2.5) |
S-25 |
Sen index |
|
s.ιε |
FGT(3) |
S _26 |
Thon index |
|
S-16 |
FGT(3.5) |
S-27 |
Takayama index |
References
Atkinson, A. B. 1987. On the measurement of poverty. Econometrica 55(4): 749-764.
Clark, S., R. Hemming, and D. Ulph. 1981. On indices for the measurement of poverty. The Economic Journal 91: 515-526.
Foster, J., J. Greer, and E. Thorbecke. 1984. A class of decomposable poverty measures. Econometrica 52: 761-765.
Hagenaars, A. 1986. The Perception of Poverty, Contributions to Economic Analysis series vol. 156. North-Holland.
Jenkins, S. P. and P. Van Kerm. 1999. sg107: Generalized Lorenz curves and related graphs. Stata Technical Bulletin 48: 25-29.
Ravallion, M. 1994. Poverty Comparisons, Fundamentals in Pure and Applied Economics series vol. 56. Harwood Academic Publishing.
Sen, A. 1976. Poverty: an ordinal approach to measurement. Econometrica 44: 219-231.
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