Rosamond Naylor, Walter Falcon, Erika Zavaleta, Variability and Growth in Grain Yields, 1950-94: Does the Record Point to Greater Instability?, Population and Development Review, Vol. 23, No. 1 (Mar., 1997), pp. 41-58
No takes yet. Share an insight, caveat, or question.
Naylor et al. (1997) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: