" L'allocation universelle: le chat est-il sorti du sac ?"

“The Graduated Work Incentive Experiments: Current Progress.”

“A Longitudinal Analysis of the Labor Supply Response to a Negative Income Tax Program: Evidence from the Seattle and Denver Income Maintenance Experiments.”

"Développement, coopération, activité"

"Du revenu social; au-delà de l'aide, la citoyenneté ?"

"Hoe het basisinkomen er toch kwam."

“On justifying a minimum welfare state”,

“Discussion.”

“An Interim Report on the Work Effort Effects and Costs of a Negative Income Tax Using Results of the the Seattle and Denver Income Maintenance Experiments: National Predictions: A Summary.”