期刊名称：International Journal of Food and Agricultural Economics
印刷版ISSN：2147-8988
出版年度：2019
卷号：7
期号：3
页码：1-13
出版社：International Journal of Food and Agricultural Economics
摘要：This study investigates the convergence hypothesis in productivity of foodgrains in terms
of output per unit of cropped area during the period 2000-01 to 2012-13 across the major 18
foodgrains producing states of India using the two standard measures of convergence viz.,
sigma convergence and beta convergence. This has been done by applying the advanced panel
data methodology, namely, panel unit root tests on demeaned series, static panel regression
and dynamic panel regression apart from conventional measures based on standard deviation
and coefficient of variation. A cross section regression shows irrigated cropped area to be the
only significant explanatory variable for explaining productivity variation across the states.
All the tests show evidence in favour of sigma and both conditional and unconditional beta
convergences. This study with foodgrains productivity shows convergence or divergence in
outcome(s) only. But convergence in means ( i.e., sources) is also an important issue in this
context. In this paper, we have also examined this in terms of input cost for two principal
crops viz., paddy and wheat in the major foodgrains producing states. This has been studied
by sigma convergence technique only. Results show convergence in average cost of production
of wheat only, and not of paddy. This finding is important in explaining the role of
technological spillover on input cost reduction across the states, and its effect in achieving
convergence in foodgrains productivity.
关键词：Productivity; Sigma Convergence; Beta Convergence; Panel Unit Root; Technical
Spill Over
