Research

Published Papers

  • Christopher B Barrett and Leah EM Bevis. (2016.) “The Reinforcing Feedback between Low Soil Fertility and Chronic Poverty,” Nature Geoscience, published online. [Paper,Blog]
  • Bevis, Leah EM, Christopher B Barrett. (2015.) “Decomposing Intergenerational Income Elasticity: The gender‐differentiated contribution of capital transmission in rural Philippines,” Word Development, 74:233-252. [Paper]
  • Leah EM Bevis. (2015.) “Soil-to-Human Mineral Transmission with an Emphasis on Zinc, Selenium and Iodine,” Springer Science Reviews, 3(1):77-96. [Paper]
  • Christopher B Barrett and Leah EM Bevis. (2015.) “The Micronutrient Deficiencies Challenge in African Food Systems.” In David E Sahn (Ed.), The Fight Against Hunger and Malnutrition: The Role of Food, Agriculture, and Targeted Policies. Oxford: Oxford University Press. [Paper]
  • Leah EM Bevis, Jon M Conrad, Christopher B Barrett. (2017). “State-Conditioned Soil Investment in Rural Uganda,” Research in Economics71(2):254-281. [Paper]

Working Papers
Close to the Edge: High Productivity at Plot Peripheries and the Inverse Size-Productivity Relationship [pdf] [ETRM blog] [Development Impact]
    With Christopher B Barrett: R&R
Variation in Crop Zinc Concentration Influences Estimates of Dietary Zinc Inadequacy [pdf]
     With Rachel Hestrin: under Review
An Unequal Burden: Seasonal patterns in the intra-household distribution of health in Tanzania [pdf]
     With Felix Naschold, Tanvi Rao: R&R
Measurement Error Mechanisms Matter: Agricultural intensification with farmer misperceptions and misreporting [pdf]
     With Kibrom Abay, Christopher B Barrett: under Review
     NBER Transforming Rural Africa [program]
Intergenerational Transmission of Maternal Health: Evidence from Cebu, Philippines [pdf]
     With Kira Villa: under Review
Heterogeneity in Staple Crop Nutrient Concentration in Rural Uganda
     With Rachel Hestrin
Soils and South Asian Stunting: Low soil zinc availability drives child stunting in Nepal [email for a copy]
     With David Guerena, Kichan Kim
Intra-Household Effects of Universalizing Access to Subsidized Food in Odisha (India)
     With Felix Naschold, Tanvi Rao
Risk, Returns, and Welfare in Tanzania
     With Linden McBride
Soils, Selenium and Separability: A new metric for market separability in Malawi
     With Kichan Kim

Ongoing Projects / New Work

left: soil pH in western Terai, Nepal. right: arsenic in Pakistan’s groundwater

I have several projects on trace minerals in soil, crop productivity / grain nutrient content, and human health. This involves research on… (i) the impact of zinc deficiency in the soils of Nepal on child stunting and human zinc status, (ii) the influence of soil mineral concentration on crop mineral concentration in Uganda, with implications for measurement of mineral intake, (iii) the link between soil selenium concentration and human selenium status in Malawi, and possibly (iv) the human health implications of arsenic contamination in Pakistan’s groundwater
Working with CIMMYT Nepal, Kichan Kim, David Guerena, Rachel Hestrin, Osama Sajid

Screen Shot 2018-07-03 at 1.11.47 PM

Opioid deaths 2007-2017

I’m beginning new work modeling opioid addiction, opioid overdose and opioid-related mortality in the Midwest. We will model the effect of local economic/ demographic factors (e.g. poverty), infrastructure (e.g. proximity to highways), health and drug environment (e.g. pill mills, rehabs), and opioid-relevant policies (e.g., police forces with naloxone) on opioid abuse and overdoses. We also plan to leverage high-frequency addiction correlates to model and predict addiction rates at high geographic and temporal resolution, enabling rapid identification of opioid abuse hotspots. More maps here.

Monthly Avg Windspeed in Cebu, Philippines

I have a few other projects measuring variation in child health in poor countries, due to seasonality (Uganda), weather shocks (Tanzania), or policy shocks (India), temperature variation (global), or typhoon exposure (Philippines).
Working with Felix Naschold, Tanvi Rao, Kira Villa

Other Links
Additionally, you can find some of my blogs at Chris Barrett’s research group blog, Economics That Really Matters. I also moderate a geospatial data repository for agricultural economists, stored here. More can be found on the importance of soils within this Nature collection.