In such cases, governments should intervene to remove the disparity between the market value and the scarcity value of the resource, making sure that such actions do not undermine the food security of households depending on these resources. Finally, policies affecting the prices of agricultural factors such as land and water can be of special value. Land taxes, for example, can promote the clear definition and potential transferability of property rights as well as provide resources for local development. But land taxes, or any tax on natural resources held by the poor, can increase food insecurity. Contributors to the book are Akinwumi A. Adesina, Elizabeth Bailey, Edward B. Barbier, Rafael Celis, Kanchan Chopra, D. Layne Coppock, A rcio S. Cunha, Hartwig de Haen, Thomas E. Downing, Amare Getahun, Narpat S. Jodha, John M. Kerr, Michael Lipton, Peter J. Matlon, Peter Oram, Martin L. Parry, Prabhu L. Pingali, Rudolph A. Polson, C. H. H. Rao, Sergio Ruano, Vernon W. Ruttan, Donald R. Sawyer, P. V. Shenoi, Ammar Siamwalla, Dunstan S. C. Spencer, Richard N. Tutwiler, Mario A. Vedova, Joachim von Braun, Patrick Webb, and Meri L. Whitaker.
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