Endogenous technologies and productivity in rice production: Roles of social instability in Myanmar since 2021

IF 4.5 3区 经济学 Q1 AGRICULTURAL ECONOMICS & POLICY Agricultural Economics Pub Date : 2024-09-27 DOI:10.1111/agec.12855
Hiroyuki Takeshima, Zin Wai Aung, Ian Masias, Bart Minten
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Abstract

Despite technologies' critical roles in agricultural productivity, evidence is scarce on how conflict affects technology adoption and consequent agricultural productivity, often due to a lack of data in fragile states. Our study contributes to filling this knowledge gap by using unique large-scale data on rice producers before and after a military coup in Myanmar in 2021 that led to a significant increase in conflicts in the country. We find that the increase in violent events including those in adjacent townships significantly changed the rice production function in both factor-neutral and non-neutral ways. Specifically, increased violent events have been generally associated with downward factor-neutral shift in production function, and more importantly, increased output elasticity to agricultural capital (equipment) owned (in other words, reduced output resilience against capital ownership shocks). Our evidence also suggests that this has been led partly through reduced access to agricultural extension services, which would otherwise help farmers maintain productivity even with limited capital ownership by substituting it with human capital and skills. Our results consistently hold for both panel and cross-sectional production functions across various specifications and particularly in Lower Myanmar. Results also indicate that lower mechanization service fees partly mitigate these effects.

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水稻生产的内生技术和生产力:2021 年以来缅甸社会不稳定所起的作用
尽管技术对农业生产率起着至关重要的作用,但由于缺乏脆弱国家的数据,有关冲突如何影响技术采用及由此产生的农业生产率的证据却很少。2021 年,缅甸发生军事政变,导致国内冲突大幅增加,我们的研究使用了缅甸水稻生产者在政变前后的大规模数据,为填补这一知识空白做出了贡献。我们发现,暴力事件(包括邻近乡镇的暴力事件)的增加以要素中性和非中性的方式显著改变了大米生产函数。具体来说,暴力事件的增加通常与生产函数的要素中性下移有关,更重要的是,与所拥有的农业资本(设备)有关的产出弹性增加(换句话说,产出对资本所有权冲击的弹性降低)。我们的证据还表明,导致这种情况的部分原因是获得农业推广服务的机会减少,而这些服务本来可以帮助农民在拥有有限资本的情况下,通过用人力资本和技能替代资本来保持生产力。我们的结果在不同规格的面板和横截面生产函数中都一致成立,尤其是在缅甸下游地区。结果还表明,较低的机械化服务费在一定程度上缓解了这些影响。
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来源期刊
Agricultural Economics
Agricultural Economics 管理科学-农业经济与政策
CiteScore
7.30
自引率
4.90%
发文量
62
审稿时长
3 months
期刊介绍: Agricultural Economics aims to disseminate the most important research results and policy analyses in our discipline, from all regions of the world. Topical coverage ranges from consumption and nutrition to land use and the environment, at every scale of analysis from households to markets and the macro-economy. Applicable methodologies include econometric estimation and statistical hypothesis testing, optimization and simulation models, descriptive reviews and policy analyses. We particularly encourage submission of empirical work that can be replicated and tested by others.
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