Determinants of farmers' indigenous soil and water conservation investments in semi‐arid India
研究了印度半干旱地区农民本土水土保持投资的决定因素，发现土地租赁和销售限制会降低投资，而劳动力、信贷市场不完善及家庭特征（如教育、种姓）也有显著影响。
Abstract This paper investigates the determinants of farmers' indigenous soil and water conservation investments in the semi‐arid tropics of India. A simple theoretical model is used to develop hypotheses about the determinants of investment under alternative factor market conditions, and these are tested using data on conservation investment from three villages. We find that conservation investment is significantly lower on leased land in two of the study villages and lower on plots that are subject to sales restrictions in one village, suggesting the potential for land market reforms to increase conservation investment. In one village, households with more adult males, more farm servants, and less land invest more in conservation, as predicted by Ihe model of imperfect labor markets; and households with more debt and off ‐ farm income invest more, consistent with the model of imperfect credit markets. Evidence that conservation investment is affected by factor market imperfections is weaker in the other villages, where investments are much larger, suggesting transaction costs as the source of the differences between villages. Other factors that have a significant effect on investment include the farmer's education and caste, characteristics of the plot (size, slope, irrigation status, and quality ranking) and the presence of existing land investments. The results suggest the importance of accounting for differences across communities and households in factor market and agroelimatic conditions in designing programs to promote investments in soil and water conservation.