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Begin New Search Topic Agriculture Publishing Institution Empirical Studies of Conflict Project (ESOC)

1. Do Commodity Price Shocks Cause Armed Conflicts? A Meta-Analysis of Natural Experiments

Author:
Graeme Blair, Darin Christensen, and Aaron Rudkin
Publication Date:
09-2020
Content Type:
Working Paper
Institution:
Empirical Studies of Conflict Project (ESOC)
Abstract:
Scholars of the resource curse argue that reliance on primary commodities destabilizes governments: price fluctuations generate windfalls or periods of austerity that provoke or intensify civil conflict. Over 350 quantitative studies test this claim, but prominent results point in different directions, making it difficult to discern which results reliably hold across contexts. We conduct a meta-analysis of 46 natural experiments that use difference-in-difference designs to estimate the causal effect of commodity price changes on armed civil conflict. We show that commodity price changes, on average, do not change the likelihood of conflict. However, there are cross-cutting effects by commodity type. In line with theory, we find price increases for labor-intensive agricultural commodities reduce conflict, while increases in the price of oil, a capital-intensive commodity, provoke conflict. We also find that price increases for lootable artisanal minerals provoke conflict. Our meta-analysis consolidates existing evidence, but also highlights opportunities for future research.
Topic:
Agriculture, Oil, Natural Resources, Commodities, and Armed Conflict
Political Geography:
Global Focus

2. Heat and Hate: Climate Security and Farmer-Herder Conflicts in Africa

Author:
Ulrich J. Eberle, Dominic Rohner, and Mathias Thoenig
Publication Date:
12-2020
Content Type:
Working Paper
Institution:
Empirical Studies of Conflict Project (ESOC)
Abstract:
This paper investigates the impact of climate shocks on violence between herders and farmers by using geolocalized data on conflict events for all African countries over the 1997-2014 period. We find that a +1℃ increase in temperature leads to a +54% increase in conflict probability in mixed areas populated by both farmers and herders, compared to +17% increase in non-mixed areas. This result is robust to controlling for the interaction between temperature and ethnic polarization, alternative estimation techniques, disaggregation levels, and coding options of the climatic/conflict/ethnic variables. When quantifying at the continental level the impact on conflict of projected climate change in 2040, we find that, in absence of mixed population areas, global warming is predicted to increase total annual conflicts by about a quarter in whole Africa; when factoring in the magnifying effect of mixed settlements, total annual conflicts are predicted to rise by as much as a third. We also provide two pieces of evidence that resource competition is a major driver of farmer-herder violence. Firstly, conflicts are much more prevalent at the fringe between rangeland and farmland - a geographic buffer of mixed usage that is suitable for both cattle herding and farming but is particularly vulnerable to climate shocks. Secondly, information on groups' mobility reveals that temperature spikes in the ethnic homeland of a nomadic group tend to diffuse its fighting operations outside its homeland, with a magnified spatial spread in the case of conflicts over resources. Finally, we show that violence is substantially reduced in the presence of policies that empower local communities, foster participatory democracy, enforce property rights and regulate land dispute resolution.
Topic:
Agriculture, Climate Change, Conflict, Violence, and Farming
Political Geography:
Africa

3. Export Crops and Civil Conflict

Author:
Joseph Felter and Benjamin Crost
Publication Date:
08-2016
Content Type:
Working Paper
Institution:
Empirical Studies of Conflict Project (ESOC)
Abstract:
Many governments and international experts consider a move towards high-value export crops, such as fruits and vegetables, as an important opportunity for economic growth and poverty reduction. Little is known, however, about the effects of export crops in fragile and conflict- affected countries. We exploit movements in world market prices combined with geographic variation in crop intensity to provide evidence that increases in the value of a major export crop exacerbate conflict violence in the Philippines. We further show that this effect is concentrated in areas with low baseline insurgent control. In areas with high insurgent control, a rise in crop value leads to a decrease in violence but a further expansion of rebel-controlled territory. These results are consistent with the hypothesis that insurgents gain strength from extorting agricultural exporters and that insurgent strength has a non-monotonic effect on conflict violence because strong insurgent groups can establish local monopolies of violence.
Topic:
Agriculture, Development, Economics, International Trade and Finance, Violence, and Exports
Political Geography:
Asia and Philippines