Market Impacts of Technological Change for Sorghum in Indian Near‐Subsistence Agriculture
用多商品市场模型模拟印度半干旱热带地区高粱技术变革的影响，发现增产会溢出到其他市场、提高消费者福利并可能压低价格，且产出增益可能超过纯生产率效应。
Abstract Evaluating market impacts of technological change for near‐subsistence crops like sorghum in semiarid tropical India is complicated because of diversified agricuiture, geographically isolated markets, and therefore feedbacks through prices, and producer‐demander income links for such products. Dynamic simulations with a multicommodity market model suggest that increased sorghum productivity would have spillover effects on other markets, increase the welfare of sorghum consumers, and probably lower the sorghum price. Contrary to speculations of some experts, the output gain probably would be greater than the pure productivity effect despite the price decline because of induced input allocations favoring sorghum production.