Plug, E. J. S., van Praag, B. M. S., & Hartog, J. (1998). Household equivalence scales and household taxation. Universiteit van Amsterdam.
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Plug, E. J. S., Krause, P., van Praag, B. M. S., & Wagner, G. G. (1997). Measurement of poverty: examplified by the German case. In G. Wagner, & N. Ott (Eds.), Income inequality and poverty in Eastern and Western Europe (pp. 69-89). Physica-Verlag.
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Plug, E. J. S., & van Praag, B. M. S. (1996). Similarity in response behaviour between households members. (TI discussion paper; No. 96-77/1). Tinbergen Institute.
Plug, E. J. S., & van Praag, B. M. S. (1995). Welfare and intelligence. (TI discussion paper; No. TI1-95-196). SEO.
Plug, E. J. S., & van Praag, B. M. S. (1995). Family equivalence scales with a narrow and broad welfare context. Journal of Income Distribution, 4(2), 171-186.
van Praag, B. M. S., & Plug, E. J. S. (1995). New developments in the measurement of welfare and well-being. In Conference Papers Ragnar Frisch Centennial Conference University of Oslo.
