5 IZA Discussion Papers
IZA Discussion Paper No. 13745
IZA Discussion Paper No. 13649
IZA Discussion Paper No. 12448
published in: the Oxford Research Encyclopedia of Economics and Finance, Oxford University Press, 2019
IZA Discussion Paper No. 12376
forthcoming in: American Journal of Agricultural Economics
IZA Discussion Paper No. 10164
published in: Jean-Pierre Michel (ed.), Oxford Textbook of Geriatric Medicine, Oxford University Press, 2017, 3 - 10