4 IZA Discussion Papers
IZA Discussion Paper No. 9573
published in: International Journal of Economic Theory, 2016, 12(3), 257-277
IZA Discussion Paper No. 8571
published in: J.D. Wright (ed) the International Encyclopedia of Social and Behavioral Sciences, 2nd Edition, 2015, 106-112
IZA Discussion Paper No. 7336
published in: Developing Economies, 2015, 53 (2), 75 - 99
IZA Discussion Paper No. 3422
published in: Sergio Destefanis and Marco Musella (eds.), Paid and Unpaid Labour in Social Utility Services, Heidelberg: Physica Verlag, 2009