By the same authors

From the same journal

From the same journal

Testing the predictive accuracy of COVID-19 forecasts

Research output: Contribution to journalArticlepeer-review



Publication details

JournalInternational journal of forecasting
DateAccepted/In press - 15 Jan 2022
Number of pages58
Pages (from-to)1-58
Original languageEnglish


We test the predictive accuracy of forecasts of the number of COVID-19 fatalities produced by several forecasting teams and collected by the United States Centers for Disease Control and Prevention for the epidemic in the United States. We find three main results. First, at the short horizon (1-week ahead) no forecasting team out performs a simple time-series benchmark. Second, at longer horizons (3- and 4-week ahead)forecasters are more successful and sometimes outperform the benchmark. Third, one of the best performing forecasts is the Ensemble forecast, that combines all available predictions using uniform weights. In view of these results, collecting a wide range of forecasts and combining them in an ensemble forecast may be a superior approach for health authorities, rather than relying on a small number of forecasts.

    Research areas

  • Forecast evaluation, Forecasting tests, Epidemic

Research outputs

Discover related content

Find related publications, people, projects, datasets and more using interactive charts.

View graph of relations