Tax havens weaken tax enforcement by obscuring firm ownership and facilitating offshore evasion. We study a reform in Ecuador that imposed a corporate tax surcharge on firms with owners in tax havens, using a newly available ownership registry. Comparing haven-owned firms to other foreign-owned firms, we find that the reform reduced haven ownership by 12 percentage points, largely through disclosure of non-haven individual owners. Exposed firms reduced transactions with tax havens and increased corporate tax payments, with no detectable effects on investment or firm size. The results suggest that ownership transparency can meaningfully improve tax compliance at limited efficiency cost.
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|---|---|
| Reproducible Research Repository (World Bank) | https://reproducibility.worldbank.org |
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| Author | Affiliation | |
|---|---|---|
| Pierre Bachas | World Bank | pbachas@worldbank.org |
| Jakob Brounstein | Institute for Fiscal Studies | jakob.brounstein@gmail.com |
| Alex Bajaña | Centro de Investigación Estadística ERGOSTATS | alexvbr@ergostats.org |
2026-09-24
| Location | Code |
|---|---|
| Ecuador | ECU |
The materials in the reproducibility packages are distributed as they were prepared by the staff of the International Bank for Reconstruction and Development/The World Bank. The findings, interpretations, and conclusions expressed in this event do not necessarily reflect the views of the World Bank, the Executive Directors of the World Bank, or the governments they represent. The World Bank does not guarantee the accuracy of the materials included in the reproducibility package.
| Name | URI |
|---|---|
| MIT License | https://opensource.org/license/mit |
| World Bank IGO Rider | https://github.com/worldbank/metadata-editor/blob/main/WB-IGO-RIDER.md |
| Name | Affiliation | |
|---|---|---|
| Pierre Bachas | World Bank | pbachas@worldbank.org |
| Reproducibility WBG | World Bank | reproducibility@worldbank.org |
| Name | Abbreviation | Affiliation | Role |
|---|---|---|---|
| Reproducibility WBG | DECDI | World Bank - Development Impact Department | Verification and preparation of metadata |
2026-09-24
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