Role of agriculture in economic development revisited
回顾马尔萨斯、李嘉图、穆勒和马歇尔等经济学家对农业与经济发展关系的不同观点，指出发展中国家若采纳科林·克拉克的见解而非二元模型和普雷维什的悲观论调，农业对经济发展的贡献会更大，并强调农业需要公平对待才能发挥其作用。
While both Malthus and Ricardo viewed agriculture as impediments to economic progress, Mill and Marshall argued that the effects of diminishing returns to land could be offset. Mill emphasized that the progress of civilization, such as roads that reduced the cost of bringing products to market, and policy improvements, such as abolition of the corn laws, provided substitutes for farm inputs. Marshall argued that population growth could for a long time, through growth of organization and knowledge, offset the effects of diminishing returns. Had the insights of Colin Clark dominated the policies of developing countries rather than the implications drawn from the dual sector models and the pessimistic views of Prebisch, agriculture's contribution to economic development would have been enhanced. The efforts to tax agriculture to support import substitution policies reduced rather than increased economic growth. Agriculture has important contributions to make to economic development, but must receive even handed treatment if the possible contributions are to be realized. A major failure of all governments has been the unwillingness to recognize that agriculture is a declining industry and to adopt policies that would assist farm people to adjust to the decline in demand for farm labor.