Heterogeneous Technology and Panel Data : The Case of the Agricultural Production Function
The paper presents empirical analysis of a panel of countries to estimate an agricultural production function using a measure of capital in agriculture absent from most studies. The authors employ a heterogeneous technology framework where implemen...
| Main Authors: | , , |
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| Format: | Policy Research Working Paper |
| Language: | English |
| Published: |
World Bank, Washington, DC
2012
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| Subjects: | |
| Online Access: | http://documents.worldbank.org/curated/en/2008/02/9041917/heterogeneous-technology-panel-data-case-agricultural-production-function http://hdl.handle.net/10986/6595 |
| Summary: | The paper presents empirical analysis of
a panel of countries to estimate an agricultural production
function using a measure of capital in agriculture absent
from most studies. The authors employ a heterogeneous
technology framework where implemented technology is chosen
jointly with inputs to interpret information obtained in the
empirical analysis of panel data. The paper discusses the
scope for replacing country and time effects by observed
variables and the limitations of instrumental variables. The
empirical results differ from those reported in the
literature for cross-country studies, largely in augmenting
the role of capital, in combination with productivity gains,
as a driver of agricultural growth. The results indicate
that total factor productivity increased at an average rate
of 3.2 percent, accounting for 59 percent of overall growth.
Most of the remaining gains stem from large inflows of fixed
capital into agriculture. The results also suggest possible
constraints to fertilizer use. |
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