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| Format: | Recurso digital |
| Language: | English |
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Zenodo
2026
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| Online Access: | https://doi.org/10.5281/zenodo.20149167 |
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| _version_ | 1866901792157073408 |
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| author | zhu, hao |
| author_facet | zhu, hao |
| contents | <p class="MsoNormal"><span>This archive is the complete replication package for the manuscript "Central Signal Premium and Purity-Amplified Reactions to Emerging Industry Initiatives: Evidence from China's Low-Altitude Economy" by Hao Zhu (Shanghai Sanda University), prepared for submission to an SSCI-indexed finance journal.</span></p> <p class="MsoNormal"><span>Contents:</span></p> <p class="MsoNormal"><span>- the hand-collected Low-Altitude-Economy Policy Event Database (LAE-PED v1.0, <span> </span>47 policy events spanning January 2022 to September 2025, aggregated into 39 same-trading-day event clusters, 33 of which survive a confounding-plus-crash filter as the main clean subsample);</span></p> <p class="MsoNormal"><span>- Python 3.11 code (with optional R 4.3 cross-checks) for: market-model event-study estimation, cross-sectional regression, wild-cluster bootstrap with Webb (2014) six-point sub-cluster weights, Benjamini-Hochberg false-discovery-rate correction, cross-industry placebo (1,391 non-LAE firm-events), 200-iteration random-date placebo, Oster (2019) / Altonji-Elder-Taber coefficient-stability bounds, Cinelli-Hazlett (2020) partial-R² sensitivity, firm-fixed-effects panel identification, and TF-IDF announcement-novelty scoring;</span></p> <p class="MsoNormal"><span>- all eleven main-text tables and five main-text figures as CSV and PDF/PNG, together with a fifteen-page online appendix replicable from the same inputs;</span></p> <p class="MsoNormal"><span>- intermediate CAR firm-event panels and diagnostic outputs;</span></p> <p class="MsoNormal"><span>- a pre-registration document dated 15 March 2025 that fixed the three hypotheses, the regression specification, and the two-day event window prior to the collection of stock-price data;</span></p> <p class="MsoNormal"><span>- a Dockerfile and `reproduce.sh` script for one-command containerised reproduction of the entire pipeline;</span></p> <p class="MsoNormal"><span>- a SHA-256 manifest enabling verification of every intermediate and output file referenced in the paper.</span></p> <p class="MsoNormal"><span>Running `bash reproduce.sh` in the package root rebuilds the full output/ directory from raw inputs in approximately 40 minutes on a standard laptop (tested on macOS 14 and Ubuntu 22.04, Python 3.11, R 4.3.2), reproducing all numerical results reported in the paper to the precision displayed.</span></p> <p class="MsoNormal"><span>Data sources. Raw daily share-price and turnover panels are obtained from (i) the open-source akshare Python interface (Ji, 2023), which aggregates publicly reported daily prices from the Shanghai and Shenzhen Stock Exchanges, and (ii) the CSMAR academic-subscription database for the non-LAE placebo panel. Derived firm-event CAR panels are bundled directly in this archive under the CSMAR academic-use terms, so that all reported numerical results can be reproduced both with and without an independent CSMAR subscription.</span></p> <p class="MsoNormal"><span>Licence. Access is restricted during peer review via a private access token issued to the editorial office. Upon formal acceptance of the associated manuscript, this archive will be made publicly available under the Creative Commons Attribution 4.0 International (CC-BY-4.0) licence within ten working days.</span></p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_20149167 |
| institution | Zenodo |
| language | eng |
| publishDate | 2026 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Replication Package for "Central Signal Premium and Purity-Amplified Reactions to Emerging Industry Initiatives: Evidence from China's Low-Altitude Economy" zhu, hao Policy uncertainty Industrial policy Event study China Low-altitude economy Policy hierarchy <p class="MsoNormal"><span>This archive is the complete replication package for the manuscript "Central Signal Premium and Purity-Amplified Reactions to Emerging Industry Initiatives: Evidence from China's Low-Altitude Economy" by Hao Zhu (Shanghai Sanda University), prepared for submission to an SSCI-indexed finance journal.</span></p> <p class="MsoNormal"><span>Contents:</span></p> <p class="MsoNormal"><span>- the hand-collected Low-Altitude-Economy Policy Event Database (LAE-PED v1.0, <span> </span>47 policy events spanning January 2022 to September 2025, aggregated into 39 same-trading-day event clusters, 33 of which survive a confounding-plus-crash filter as the main clean subsample);</span></p> <p class="MsoNormal"><span>- Python 3.11 code (with optional R 4.3 cross-checks) for: market-model event-study estimation, cross-sectional regression, wild-cluster bootstrap with Webb (2014) six-point sub-cluster weights, Benjamini-Hochberg false-discovery-rate correction, cross-industry placebo (1,391 non-LAE firm-events), 200-iteration random-date placebo, Oster (2019) / Altonji-Elder-Taber coefficient-stability bounds, Cinelli-Hazlett (2020) partial-R² sensitivity, firm-fixed-effects panel identification, and TF-IDF announcement-novelty scoring;</span></p> <p class="MsoNormal"><span>- all eleven main-text tables and five main-text figures as CSV and PDF/PNG, together with a fifteen-page online appendix replicable from the same inputs;</span></p> <p class="MsoNormal"><span>- intermediate CAR firm-event panels and diagnostic outputs;</span></p> <p class="MsoNormal"><span>- a pre-registration document dated 15 March 2025 that fixed the three hypotheses, the regression specification, and the two-day event window prior to the collection of stock-price data;</span></p> <p class="MsoNormal"><span>- a Dockerfile and `reproduce.sh` script for one-command containerised reproduction of the entire pipeline;</span></p> <p class="MsoNormal"><span>- a SHA-256 manifest enabling verification of every intermediate and output file referenced in the paper.</span></p> <p class="MsoNormal"><span>Running `bash reproduce.sh` in the package root rebuilds the full output/ directory from raw inputs in approximately 40 minutes on a standard laptop (tested on macOS 14 and Ubuntu 22.04, Python 3.11, R 4.3.2), reproducing all numerical results reported in the paper to the precision displayed.</span></p> <p class="MsoNormal"><span>Data sources. Raw daily share-price and turnover panels are obtained from (i) the open-source akshare Python interface (Ji, 2023), which aggregates publicly reported daily prices from the Shanghai and Shenzhen Stock Exchanges, and (ii) the CSMAR academic-subscription database for the non-LAE placebo panel. Derived firm-event CAR panels are bundled directly in this archive under the CSMAR academic-use terms, so that all reported numerical results can be reproduced both with and without an independent CSMAR subscription.</span></p> <p class="MsoNormal"><span>Licence. Access is restricted during peer review via a private access token issued to the editorial office. Upon formal acceptance of the associated manuscript, this archive will be made publicly available under the Creative Commons Attribution 4.0 International (CC-BY-4.0) licence within ten working days.</span></p> |
| title | Replication Package for "Central Signal Premium and Purity-Amplified Reactions to Emerging Industry Initiatives: Evidence from China's Low-Altitude Economy" |
| topic | Policy uncertainty Industrial policy Event study China Low-altitude economy Policy hierarchy |
| url | https://doi.org/10.5281/zenodo.20149167 |