Submit a Paper
This meta-analysis is a living repository: it grows as new evidence is published. If you have estimated the price effect of a U.S. horizontal merger, we would like to include it. Use the form below to send us the details.
What we include
To keep estimates comparable, the meta-analysis has a focused scope. We can include a result if all of the following hold:
- It is a U.S. merger.
- It is a horizontal merger (not vertical, and not an airline code-share).
- The paper reports a reduced-form, difference-in-differences estimate of the merger’s price effect.
Results estimated with other methods (e.g. structural simulation) fall outside the current scope. If you are unsure whether your paper qualifies, submit it anyway. We would rather review a borderline case than miss one.
What we will ask for
The form collects the information the meta-analysis needs:
| Section | Details |
|---|---|
| Paper | Authors and institutions, year, journal, link to the paper. |
| Merger | Merging companies, country, year, merger type, and (if known) the SDC Platinum deal identifier. |
| Result | Years studied pre- and post-merger, the main price-effect estimate and its standard error, and the page it appears on. If the outcome is not in log-price, please provide the pre-treatment mean price and standard deviation so we can put it on a comparable scale. |
| Notes | Anything else we should know, for example if the paper has multiple “main” specifications. |
Submission form
Submissions are reviewed before being added to the meta-analysis. Inclusion does not imply endorsement of a paper’s conclusions, only that its estimate meets the scope criteria above. We may reach out to you if we have questions or clarifications about your paper.