All papers and comparison plots · Results JSON · Quarto source
4 of 4 registered specifications have estimates. Every registered specification appears below.
Martinez-Bravo et al. (2022), AER. https://doi.org/10.1257/aer.20181249
Data and estimation
Outcomes are divided by their unweighted source-sample standard deviation (ddof=1), before exclusions; they are not centered. Treatment adoption is the first observed treated period. Models share an eligible sample, fixed effects, controls and weights. Initially treated units, missing −1 baselines and unsupported untreated-outcome predictions are removed. For switching treatments, untreated rows after first adoption are removed. Exact counts and settings are in the JSON.
Static TWFE uses the treatment indicator. Dynamic TWFE omits event time −1. BJS/did2s fits untreated outcomes, then averages imputation residuals. Sun–Abraham estimates cohort-by-event-time effects. The three dynamic estimates share post-period aggregation weights. Event-study tails are unbinned. These are common-sample reruns, not Peter’s original estimator-specific sample and tail-binning rules.
The homogeneity test restricts identified cohort deviations at positive event times to zero; leads and event time 0 remain unrestricted. It is a homoskedastic nested-model F-test. Estimate intervals are separately cluster-robust, with the did2s two-stage correction. Large panels use algebraically equivalent sparse regressions; backend and validation results are recorded in JSON.
Adoption timing
S12-P001: seeded sample of 13 of 13 eligible units. Purple untreated; yellow treated; white unobserved. Calendar periods follow the configured time grid. Each specification uses its own full eligible sample.
| Specification | Status | F_pvalue | Static TWFE | Dynamic TWFE | BJS / did2s | Sun–Abraham |
|---|---|---|---|---|---|---|
| S12-P001 | estimated | 0 | -0.01422 | -0.01467 | 0.0859 | 0.0859 |
| S12-P002 | estimated | 0.9991 | -0.1347 | 0.3012 | 0.3186 | 0.4546 |
| S12-P003 | estimated | 1.455e-13 | -0.0002212 | -0.003676 | 0.02281 | 0.02439 |
| S12-P004 | estimated | 1 | 0.1889 | 0.03766 | 0.04435 | -0.02743 |
Specifications
Open a specification for its estimates, event studies and homogeneity test. Plots display −10 through 10; JSON contains the full paths. Large-panel intervals are calculated over the displayed window.
S12-P001 · LOCAL-ELECTIONS-T5-C3-LAND-EXPROPRIATION · homogeneity rejected
Specification JSON · Configuration
Indicator for expropriation of village land
Source rows: 4,340; fitted rows: 195; units: 13; clusters: 13; treated cohorts: 8. Source outcome SD: 0.13858606.
| method | estimate | se | lower | upper |
|---|---|---|---|---|
| Static TWFE | -0.014223 | 0.055063 | -0.1342 | 0.10575 |
| Dynamic TWFE | -0.014667 | 0.08272 | -0.1949 | 0.16556 |
| BJS / did2s | 0.085902 | 0.079529 | -0.087378 | 0.25918 |
| Sun–Abraham | 0.085902 | 2.3384e-15 | 0.085902 | 0.085902 |
Post-period weighting: observations. Homogeneity F(48, 42) = 1.337e+29; p = 0.
S12-P002 · LOCAL-ELECTIONS-T5-C3-ONE-CHILD
Specification JSON · Configuration
Number of one-child-policy exemptions granted by the village government
Source rows: 4,340; fitted rows: 195; units: 13; clusters: 13; treated cohorts: 8. Source outcome SD: 0.49752783.
| method | estimate | se | lower | upper |
|---|---|---|---|---|
| Static TWFE | -0.1347 | 0.21611 | -0.60555 | 0.33615 |
| Dynamic TWFE | 0.3012 | 0.29645 | -0.34471 | 0.94712 |
| BJS / did2s | 0.31858 | 0.19656 | -0.10969 | 0.74684 |
| Sun–Abraham | 0.45463 | 0.10108 | 0.2344 | 0.67486 |
Post-period weighting: observations. Homogeneity F(48, 42) = 0.3899; p = 0.9991.
S12-P003 · LOCAL-ELECTIONS-T5-C3-PUBLIC-GOODS · homogeneity rejected
Specification JSON · Configuration
Public-goods expenditure funded by villagers (10,000 constant RMB)
Source rows: 4,340; fitted rows: 195; units: 13; clusters: 13; treated cohorts: 8. Source outcome SD: 117.72847.
| method | estimate | se | lower | upper |
|---|---|---|---|---|
| Static TWFE | -0.00022118 | 0.017308 | -0.037931 | 0.037489 |
| Dynamic TWFE | -0.0036764 | 0.029763 | -0.068525 | 0.061172 |
| BJS / did2s | 0.022812 | 0.021651 | -0.024361 | 0.069985 |
| Sun–Abraham | 0.024393 | 0.009445 | 0.0038138 | 0.044972 |
Post-period weighting: observations. Homogeneity F(48, 42) = 11.92; p = 1.455e-13.
S12-P004 · LOCAL-ELECTIONS-T5-C3-VC-UNILATERAL
Specification JSON · Configuration
Sum of policies unilaterally decided by the elected village committee chairman
Source rows: 4,340; fitted rows: 195; units: 13; clusters: 13; treated cohorts: 8. Source outcome SD: 1.30195.
| method | estimate | se | lower | upper |
|---|---|---|---|---|
| Static TWFE | 0.18887 | 0.15723 | -0.15372 | 0.53145 |
| Dynamic TWFE | 0.037662 | 0.11113 | -0.20446 | 0.27979 |
| BJS / did2s | 0.044351 | 0.07047 | -0.10919 | 0.19789 |
| Sun–Abraham | -0.027431 | 0.16605 | -0.38923 | 0.33437 |
Post-period weighting: observations. Homogeneity F(48, 42) = 0.2357; p = 1.
Reproduce
Code, configurations and environments · Generic Quarto template · Editable Jot template. Source datasets remain local. Run python templates/full_archive/run_archive.py, then python templates/full_archive/build_collection.py.