Our Products
Professional tools for event study analysis — from a spreadsheet template to an open-source R package.
Google Sheets Template
Run event studies directly in Google Sheets or Excel. Automatic data fetching, 3 return models, and instant results. Perfect for quick analyses.
- Market Model
- Mean Adjusted
- Market Adjusted
- Auto data fetch
- Downloadable results
R Package
Full-featured R package with 15 return models, 12 test statistics, panel DiD estimators, synthetic control, and Monte Carlo power analysis.
- 15 return models
- 12 test statistics
- 6 DiD estimators
- Synthetic control
- Power analysis
- Export to CSV/LaTeX
Event Study App
Run event studies directly in your browser using WebAssembly. Upload CSV or Excel data and get results instantly -- no installation, no server, fully private.
- Runs entirely in browser
- CSV & Excel upload
- Multiple return models
- Interactive charts
- No data sent to server
The EventStudy R package includes 15 expected return models and 12 test statistics, covering the full range of approaches recommended in the academic literature. The Google Sheets template provides 3 return models for quick analyses, while the browser-based Event Study App offers 10 return models and 11 test statistics with zero installation. According to Kothari and Warner (2007), the choice of test statistic can substantially affect the power and size properties of event study inference, making this breadth of options essential for rigorous research.
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Feature Comparison
See how our tools stack up across key capabilities.
| Feature | GSheet Template | R Package | Event Study App |
|---|---|---|---|
| Return Models | 3 | 15 | 10 |
| Test Statistics | 3 | 12 | 11 |
| Panel DiD | No | Yes, 6 estimators | No |
| Synthetic Control | No | Yes | No |
| Intraday | No | Yes | No |
| Power Analysis | No | Yes | No |
| Data Fetching | Auto | Manual/API | CSV/Excel upload |
| Export Formats | CSV | CSV/LaTeX/Excel/Plots | CSV/Excel |
| Price | Paid | Free/Open Source | Free |
Not Sure Which Tool to Use?
Start with the Google Sheets template for quick, no-code analyses. Move to the R package when you need advanced features like panel DiD estimators, synthetic control, or publication-quality exports.