I am trying to estimate the effect of an economic shock on coordination among spouses in a household. However, I am confused if I am following the right approach as at the end of the output, I find "Note: 15 observations completely determined. Standard errors questionable." I have used the following command (both code and output are shown below):
Here, household_coordination takes value
1 if both spouses are working,
2 if only husband is working,
3 if only wife is working
4 if neither is working
time_dummy takes value 1 for post-shock time period and 0 for pre-shock time period
treat_dummy takes value 1 if spouses are located in treated district and 0 otherwise
dependency_ratio is the ratio of dependent population (aged <15 years and >70 years) to working age population in a household
sex_ratio is the ratio of number of females to number of males in household
social_group is the category of different caste hierarchy
household_type is primary source of income for the household (regular, casual or self-employed)
household_cons_expenditure_month is the monthly household expenditure (which reflects household wealth)
The output that I got is:
Code:
mlogit household_coordination i.time_dummy##i.treat_dummy dependency_ratio sex_ratio age i.education_level i.religion i.social_group i.household_type household_cons_expenditure_month i.district [pweight=weight], r
1 if both spouses are working,
2 if only husband is working,
3 if only wife is working
4 if neither is working
time_dummy takes value 1 for post-shock time period and 0 for pre-shock time period
treat_dummy takes value 1 if spouses are located in treated district and 0 otherwise
dependency_ratio is the ratio of dependent population (aged <15 years and >70 years) to working age population in a household
sex_ratio is the ratio of number of females to number of males in household
social_group is the category of different caste hierarchy
household_type is primary source of income for the household (regular, casual or self-employed)
household_cons_expenditure_month is the monthly household expenditure (which reflects household wealth)
The output that I got is:
Code:
note: 12.district omitted because of collinearity.
Iteration 0: Log pseudolikelihood = -1.339e+08
Iteration 1: Log pseudolikelihood = -98055617
Iteration 2: Log pseudolikelihood = -96952029
Iteration 3: Log pseudolikelihood = -96482460
Iteration 4: Log pseudolikelihood = -96475124
Iteration 5: Log pseudolikelihood = -96474536
Iteration 6: Log pseudolikelihood = -96474428
Iteration 7: Log pseudolikelihood = -96474404
Iteration 8: Log pseudolikelihood = -96474398
Iteration 9: Log pseudolikelihood = -96474397
Iteration 10: Log pseudolikelihood = -96474397
Iteration 11: Log pseudolikelihood = -96474397
Iteration 12: Log pseudolikelihood = -96474397
Iteration 13: Log pseudolikelihood = -96474397
Iteration 14: Log pseudolikelihood = -96474397
Iteration 15: Log pseudolikelihood = -96474397
Iteration 16: Log pseudolikelihood = -96474397
Multinomial logistic regression Number of obs = 16,678
Wald chi2(135) = 20652.55
Prob > chi2 = 0.0000
Log pseudolikelihood = -96474397 Pseudo R2 = 0.2795
------------------------------------------------------------------------------------------------------------------
| Robust
household_coordination | Coefficient std. err. z P>|z| [95% conf. interval]
-------------------------------------------------+----------------------------------------------------------------
Both_working |
1.time_dummy | -.0158726 .073909 -0.21 0.830 -.1607316 .1289865
1.treat_dummy | -.7027549 .2072395 -3.39 0.001 -1.108937 -.2965729
|
time_dummy#treat_dummy |
1 1 | .1281244 .1071509 1.20 0.232 -.0818875 .3381362
|
dependency_ratio | -.1219124 .057091 -2.14 0.033 -.2338088 -.010016
sex_ratio | -.1188435 .0304601 -3.90 0.000 -.1785442 -.0591428
age | -.0007664 .001335 -0.57 0.566 -.003383 .0018502
|
education_level |
Literate without formal schooling: EGS/NFEC/AEC | 1.666589 .7360029 2.26 0.024 .2240496 3.109128
Literate without formal schooling: TLC | 2.69473 1.204716 2.24 0.025 .3335311 5.05593
Literate without formal schooling: Others | -.0561974 .4548984 -0.12 0.902 -.9477818 .835387
Below primary | .2598866 .11367 2.29 0.022 .0370974 .4826758
Primary | .4768204 .1092037 4.37 0.000 .2627852 .6908557
Middle | .3036858 .096105 3.16 0.002 .1153235 .492048
Secondary | .1451055 .1070652 1.36 0.175 -.0647385 .3549495
Higher Secondary | .2828705 .1199765 2.36 0.018 .0477209 .5180201
Diploma/Certificate Course | .568807 .1405261 4.05 0.000 .2933808 .8442331
Graduate | .2132686 .125385 1.70 0.089 -.0324815 .4590186
Post graduate and above | .5067951 .1943475 2.61 0.009 .125881 .8877092
|
religion |
Islam | -1.355998 .0803341 -16.88 0.000 -1.51345 -1.198546
Christianity | -.1689143 .0833294 -2.03 0.043 -.3322369 -.0055918
Sikhism | 25.05115 .5189643 48.27 0.000 24.034 26.06831
Jainism | -23.75782 .3469834 -68.47 0.000 -24.4379 -23.07775
Buddhism | 25.7901 .6009491 42.92 0.000 24.61226 26.96794
Zoroastiansism | 24.92038 .369491 67.45 0.000 24.19619 25.64457
Others | .2870845 .4157228 0.69 0.490 -.5277172 1.101886
|
social_group |
Scheduled Caste | .4039961 .2408501 1.68 0.093 -.0680614 .8760535
Other Backward Class | .0765286 .2317459 0.33 0.741 -.3776849 .5307422
Others | .1848982 .2383234 0.78 0.438 -.2822071 .6520035
|
household_type |
2 | .2072669 .0674396 3.07 0.002 .0750877 .3394461
3 | .3574103 .0728295 4.91 0.000 .2146671 .5001535
4 | .4110147 .1255971 3.27 0.001 .164849 .6571804
5 | -.0199414 .1033561 -0.19 0.847 -.2225156 .1826328
9 | .1955746 .4441266 0.44 0.660 -.6748977 1.066047
|
household_cons_expenditure_month | .0000501 4.75e-06 10.56 0.000 .0000408 .0000594
|
district |
2 | -.7354827 .1684331 -4.37 0.000 -1.065606 -.4053599
3 | 1.052953 .2027065 5.19 0.000 .6556558 1.450251
4 | .3196974 .1401048 2.28 0.022 .045097 .5942978
5 | .4145917 .1900838 2.18 0.029 .0420343 .7871492
6 | .5879066 .1797885 3.27 0.001 .2355276 .9402856
7 | .5823383 .1715462 3.39 0.001 .2461139 .9185627
8 | .3241014 .170929 1.90 0.058 -.0109133 .6591162
9 | 1.273401 .1976022 6.44 0.000 .8861074 1.660694
10 | .3069194 .1601108 1.92 0.055 -.006892 .6207308
11 | .7176304 .1892114 3.79 0.000 .3467828 1.088478
12 | 0 (omitted)
13 | .6179388 .1513468 4.08 0.000 .3213045 .914573
14 | .0453671 .1563654 0.29 0.772 -.2611034 .3518377
|
_cons | -1.526854 .2685512 -5.69 0.000 -2.053205 -1.000504
-------------------------------------------------+----------------------------------------------------------------
Husband_working__wife_not | (base outcome)
-------------------------------------------------+----------------------------------------------------------------
Wife_working__husband_not |
1.time_dummy | -.0255124 .1347011 -0.19 0.850 -.2895218 .238497
1.treat_dummy | -.0831364 .4087201 -0.20 0.839 -.884213 .7179402
|
time_dummy#treat_dummy |
1 1 | .5605286 .1939844 2.89 0.004 .1803263 .940731
|
dependency_ratio | .2090512 .1068879 1.96 0.050 -.0004452 .4185477
sex_ratio | -.4870676 .0827172 -5.89 0.000 -.6491904 -.3249449
age | .0059034 .002428 2.43 0.015 .0011447 .0106622
|
education_level |
Literate without formal schooling: EGS/NFEC/AEC | 3.34502 .9145126 3.66 0.000 1.552608 5.137431
Literate without formal schooling: TLC | -21.55821 .942903 -22.86 0.000 -23.40627 -19.71016
Literate without formal schooling: Others | 1.061484 .5300408 2.00 0.045 .0226235 2.100345
Below primary | .4720465 .1977124 2.39 0.017 .0845372 .8595557
Primary | .4989601 .2066312 2.41 0.016 .0939704 .9039499
Middle | .0873603 .1765532 0.49 0.621 -.2586776 .4333981
Secondary | .2858166 .1979855 1.44 0.149 -.102228 .6738611
Higher Secondary | .6099309 .2080757 2.93 0.003 .20211 1.017752
Diploma/Certificate Course | .6041262 .2346056 2.58 0.010 .1443076 1.063945
Graduate | .5778673 .2207822 2.62 0.009 .1451421 1.010592
Post graduate and above | 1.331876 .2988721 4.46 0.000 .746098 1.917655
|
religion |
Islam | -1.281868 .1553884 -8.25 0.000 -1.586424 -.9773124
Christianity | -.2206113 .1529705 -1.44 0.149 -.520428 .0792055
Sikhism | .538258 .2780025 1.94 0.053 -.006617 1.083133
Jainism | -23.89828 .4425888 -54.00 0.000 -24.76573 -23.03082
Buddhism | .9659883 .3684061 2.62 0.009 .2439256 1.688051
Zoroastiansism | -.3787971 .2117749 -1.79 0.074 -.7938682 .036274
Others | -1.902428 .6523045 -2.92 0.004 -3.180922 -.6239351
|
social_group |
Scheduled Caste | -1.91416 .3753603 -5.10 0.000 -2.649853 -1.178468
Other Backward Class | -1.65958 .3502335 -4.74 0.000 -2.346025 -.9731351
Others | -1.374201 .3665997 -3.75 0.000 -2.092724 -.6556792
|
household_type |
2 | .3395539 .132186 2.57 0.010 .0804741 .5986337
3 | .8102268 .1306138 6.20 0.000 .5542284 1.066225
4 | .6770923 .2627861 2.58 0.010 .162041 1.192144
5 | .0752352 .2303062 0.33 0.744 -.3761567 .5266271
9 | 3.079924 .3316687 9.29 0.000 2.429865 3.729983
|
household_cons_expenditure_month | -.0000161 9.90e-06 -1.62 0.104 -.0000355 3.32e-06
|
district |
2 | 1.133535 .3079185 3.68 0.000 .5300264 1.737045
3 | -.743917 .4239013 -1.75 0.079 -1.574748 .0869144
4 | 1.056271 .3247245 3.25 0.001 .4198231 1.69272
5 | .5961219 .348318 1.71 0.087 -.0865688 1.278813
6 | .3265286 .3248551 1.01 0.315 -.3101756 .9632329
7 | 1.053702 .3016057 3.49 0.000 .4625657 1.644839
8 | .5097657 .3119027 1.63 0.102 -.1015525 1.121084
9 | -.095839 .3883903 -0.25 0.805 -.85707 .6653919
10 | .1914888 .3744237 0.51 0.609 -.5423681 .9253457
11 | .7565155 .3427428 2.21 0.027 .0847519 1.428279
12 | 0 (omitted)
13 | .9412425 .3290607 2.86 0.004 .2962954 1.58619
14 | 1.665447 .3414197 4.88 0.000 .9962771 2.334618
|
_cons | -1.847752 .4199927 -4.40 0.000 -2.670923 -1.024582
-------------------------------------------------+----------------------------------------------------------------
Neither_working |
1.time_dummy | -.1362492 .0984825 -1.38 0.167 -.3292713 .0567729
1.treat_dummy | -.1920688 .2965109 -0.65 0.517 -.7732195 .3890818
|
time_dummy#treat_dummy |
1 1 | -.1559826 .1500374 -1.04 0.299 -.4500504 .1380852
|
dependency_ratio | -.3220349 .094127 -3.42 0.001 -.5065204 -.1375493
sex_ratio | -.0424478 .0488557 -0.87 0.385 -.1382032 .0533075
age | .010072 .0018666 5.40 0.000 .0064135 .0137304
|
education_level |
Literate without formal schooling: EGS/NFEC/AEC | .1984374 .6868283 0.29 0.773 -1.147721 1.544596
Literate without formal schooling: TLC | -.9435335 1.019233 -0.93 0.355 -2.941194 1.054127
Literate without formal schooling: Others | -2.167563 .5273915 -4.11 0.000 -3.201232 -1.133895
Below primary | -.0195611 .1526759 -0.13 0.898 -.3188004 .2796781
Primary | .1055706 .147593 0.72 0.474 -.1837065 .3948476
Middle | -.1819045 .1298198 -1.40 0.161 -.4363468 .0725377
Secondary | .095965 .144967 0.66 0.508 -.1881651 .3800952
Higher Secondary | .361107 .1566339 2.31 0.021 .0541103 .6681037
Diploma/Certificate Course | .2877779 .1987094 1.45 0.148 -.1016854 .6772412
Graduate | .6038103 .1684906 3.58 0.000 .2735748 .9340457
Post graduate and above | .6291799 .264365 2.38 0.017 .1110341 1.147326
|
religion |
Islam | -.3530826 .0970115 -3.64 0.000 -.5432217 -.1629435
Christianity | -.2944134 .1168478 -2.52 0.012 -.5234309 -.0653959
Sikhism | .3027214 .1992737 1.52 0.129 -.087848 .6932907
Jainism | -3.538234 .4815603 -7.35 0.000 -4.482075 -2.594393
Buddhism | .6449177 .2246501 2.87 0.004 .2046116 1.085224
Zoroastiansism | 1.491325 .2088949 7.14 0.000 1.081899 1.900752
Others | .7508039 .6099618 1.23 0.218 -.4446992 1.946307
|
social_group |
Scheduled Caste | -.4276803 .3435522 -1.24 0.213 -1.10103 .2456695
Other Backward Class | -.2750426 .3272464 -0.84 0.401 -.9164338 .3663486
Others | -.205541 .3298752 -0.62 0.533 -.8520845 .4410024
|
household_type |
2 | .5886372 .106114 5.55 0.000 .3806576 .7966167
3 | .7196112 .106732 6.74 0.000 .5104204 .928802
4 | .5472622 .1945804 2.81 0.005 .1658917 .9286327
5 | .423022 .1340405 3.16 0.002 .1603075 .6857365
9 | 7.268856 .278214 26.13 0.000 6.723567 7.814146
|
household_cons_expenditure_month | -.0000852 .0000104 -8.18 0.000 -.0001056 -.0000648
|
district |
2 | -.1673228 .1861948 -0.90 0.369 -.5322579 .1976124
3 | -.1971598 .2986654 -0.66 0.509 -.7825331 .3882136
4 | .0995576 .1784901 0.56 0.577 -.2502766 .4493917
5 | .0626522 .2698674 0.23 0.816 -.4662781 .5915825
6 | .2385216 .2703431 0.88 0.378 -.2913412 .7683843
7 | .7957359 .2705633 2.94 0.003 .2654415 1.32603
8 | .4868733 .2600771 1.87 0.061 -.0228684 .9966151
9 | 1.315812 .3054403 4.31 0.000 .7171601 1.914464
10 | .3381227 .2086875 1.62 0.105 -.0708973 .7471427
11 | .2636806 .2795222 0.94 0.346 -.2841728 .811534
12 | 0 (omitted)
13 | .7078924 .202697 3.49 0.000 .3106136 1.105171
14 | 1.569477 .1991525 7.88 0.000 1.179145 1.959809
|
_cons | -1.485128 .3969955 -3.74 0.000 -2.263225 -.707031
------------------------------------------------------------------------------------------------------------------
Note: 15 observations completely determined. Standard errors questionable.
Comment