Animated Overview¶
A narrated visual walkthrough of the paper's key ideas and findings.
Controls
- Click Play to start the narrated animation (English, via browser text-to-speech)
- Use Prev / Pause / Next buttons or arrow keys to navigate
- Best experienced in Chrome for highest-quality speech synthesis
Scenes covered:
| # | Topic | Key number |
|---|---|---|
| 1 | Title | |
| 2 | The problem: cartels in public procurement | |
| 3 | The detection gap: limited data | |
| 4 | The strange pattern: firms that always lose | |
| 5 | Cover bidders: faking competition | |
| 6 | The screening rule | 41K → 16.8K → 2,735 firms |
| 7 | Evidence: higher prices | +3.6--7.7% |
| 8 | Evidence: validated against CADE | AUC = 0.94 |
| 9 | Evidence: strategic pattern | Pregão +9.3% vs. Convite +3.8% |
| 10 | Three-stage enforcement pathway | Screen → Triage → Investigate |
| 11 | Closing statement |