Publications
Charges: Experimental Evidence for Europe. Journal of Transport Economics and Policy, Volume 59, Part 3, 161–178. Helmers, V., van der Werf, E. (2025). Did the German Aviation Tax Have a Lasting Effect on [...] Statistics and Related Fields. IWFOS 2025. Contributions to Statistics. Springer, Cham. DOI: 10.1007/978-3-031-92383-8_4 . Bruns, M., Keweloh S. A. (2025). Testing for strong exogeneity in proxy-VARs. Journal …