2 IZA Discussion Papers
IZA Discussion Paper No. 13391
published in: M. R. Busemeyer, A. Kemmerling, K. Van Kersbergen, P. Marx (eds.), Digitalization and the Welfare State, Oxford University Press, 2022, 64–82
IZA Discussion Paper No. 13273
revised version published in: Empirical Economics, 2022, 63, 2785 - 2815