The original version of Jérôme and Graefe (Reference Jérôme and Graefe2021) contained errors in the reference entry for another article in the symposium, “The Zweitstimme Model: A Dynamic Forecast of the 2021 German Federal Election.” The correct citation is as follows:
Gschwend, Thomas, Klara Müller, Simon Munzert, Marcel Neunhoeffer, and Lukas F. Stoetzer. 2021. “The Zweitstimme Model: A Dynamic Forecast of the 2021 German Federal Election.” PS: Political Science & Politics. DOI: 10.1017/S1049096521000913.
The authors apologize for the error. The original article has been updated.