Answers are grounded in this paper and cite their sources.
(1967). A New Measure of Agricultural Efficiency in Uttar Pradesh, India. Economic Geography: Vol. 43, No. 3, pp. 244-260.
No takes yet. Share an insight, caveat, or question.
Shyam Bhatia (1967) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: