4 IZA Discussion Papers
IZA Discussion Paper No. 16379
IZA Discussion Paper No. 15480
IZA Discussion Paper No. 13999
revised version publishedd as 'Improving children’s food choices: Experimental evidence from the field: in: European Economic Review, 2023, 159, 104562
IZA Discussion Paper No. 5040
published in: American Economic Journal: Microeconomics, 2011, 3 (3), 86-99