Impact of R&D expenditures, rainfall and temperature variations in agricultural productivity: empirical evidence from Bangladesh
Impact of R&D expenditures, rainfall and temperature variations in agricultural productivity: empirical evidence from Bangladesh
复制标题
R 的影响
DOI：
10.1080/00036846.2019.1697422
复制
发表时间：
2020
影响因子：
2.2
通讯作者：
S. Rahman
中科院分区：
文献类型：
--
作者：
Ruhul Salim;Kamrul Hassan;S. Rahman
摘要本研究旨在探讨孟加拉农业研发支出、气候变化(以年降雨量和气温变化衡量)、人力资本(以识字率为代表)与全要素生产率(TFP)增长之间的动态关系。Pesaran‘s Pooled Mean Group(PMG)估计器用于孟加拉国17个地区61年(1948-2008年)的独特面板数据。此外，还应用面板向量自回归(PVAR)模型跟踪了TFP从冲击到R&D、推广服务和识字率的反应。结果表明，R&D在短期内对全要素生产率的影响不显著，而在长期内对全要素生产率有显著的正向影响。气候变量(即降雨量和温度变化)的贡献是非常显著的，从长远来看是负面的。不出所料，识字率对全要素生产率产生了显著的积极影响。这些结果表明，农业研发投资和人力资本可以在缓解气候变化对孟加拉国农业部门的不利影响方面发挥重要作用。
ABSTRACT This study aims to investigate dynamic relationships between research and development (R&D) expenditure, climate change (measured by annual rainfall and temperature variations), human capital (proxied by literacy) and total factor productivity (TFP) growth in Bangladesh agriculture. Pesaran’s Pooled Mean Group (PMG) estimator is used to a unique panel data of 17 regions of Bangladesh covering a 61-year period (1948–2008). In addition, the panel vector autoregression (PVAR) model is also applied to trace the responsiveness of TFP from a shock to R&D, extension services, and literacy rate. Results reveal that R&D has an insignificant impact on TFP in the short-run, while it has a significant positive impact in the long-run. The contributions of climate variables (i.e., rainfall and temperature variations) are highly significant and negative in the long run. The literacy rate is found to have a significant positive impact on TFP as expected. These results suggest that agricultural R&D investment and human capital could play an important role to ameliorate the adverse effects of climate change in the agricultural sector of Bangladesh.
影响因子：
3.2
作者：
NISHIMIZU, M;PAGE, JM
通讯作者：
PAGE, JM
的存在
DOI：
--
发表时间：
2004
期刊：
Journal of Clinical Pathology 57・9
影响因子：
--
作者：
Saito T;Oda Y;Tamiya S;et al.;Nakayama H
通讯作者：
Nakayama H