@article {7724,
	title = {Measuring and explaining efficiency of pre-vaccine country responses to COVID-19 pandemic: a conditional robust nonparametric approach},
	journal = {Empirical Economics},
	volume = {68},
	year = {2025},
	pages = {107-137},
	author = {Kuchenbecker, A. S. and Torrent, H. S. and F. A. Ziegelmann}
}
