| Year | Author | Title | Description | Type | URL |
|---|---|---|---|---|---|
| 1971 | Kurz, Mordecai and Robert G. Spiegelman | “The Seattle Experiment: The Combined Effect of Income Maintenance and Manpower Investments.” | American Economic Review 61 2: 22-29 (May). |
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| 1971 | Lampman, Robert J. | "Ends and Means of Reducing Income Poverty. " | Chicago, Markham. |
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| 1971 | Watts, Harold | “The Graduated Work Incentive Experiments: Current Progress.” | American Economic Review 61 (May): 15-21. |
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| 1971 | Orr, Larry L, Robinson Hollister, and Myron Lefcowitz | "Income Maintenance: Interdisciplinary Approaches to Research." | University of Wisconsin Institute for Research on Poverty Monograph Series. Chicago: 1971. |
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| 1971 | Werkgroep Alternatieve Economie | "Armoede in België: een op tien." | De Nieuwe Maand 8 (okt.), 446-460. |
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| 1971 | Kelly, Terrance F. and Leslie Singer | “The Gary Income Maintenance Experiment: Plans and Progress.” | American Economic Review 61 (May): 30-42. |
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| 1971 | Vranken, Jan (Werkgroep Alternatieve Economie). | "Armoede in België. Waarom één op tien en wat er aan gedaan?" | De Nieuwe Maand 8(nov.), 510-522. |
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| 1970 | Maslow, A.H. | "Motivation and Personality" | A statement on self-actualisation and data. Applications are made to the theories and science of personality, psychotherapy, personal growth and general psychology.Harper & Row, New York, NY. |
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| 1970 | Grapperhuis, F.H.M. | "Is de negatieve inkomstenbelasting een schrede vooruit op de weg naar de sociale rechtvaardigheid?" | Deventer: Kluwer. |
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| 1970 | Tobin, James | "On Limiting the Domain of Inequality" | In: Journal of Law and Economics 13(2):263-278. |
