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: Do Behavioral Explanations Account for the Inverse Productivity Relationship? [pdf] [ETRM blog] [Development Impact]
    With Christopher B Barrett: under Review
Intergenerational Transmission of Health, Cognition and Non-Cognitive Skills in Cebu, Philippines
     With Kira Villa
Variation in Crop Zinc Concentration Influences Estimates of Dietary Zinc Inadequacy
     With Rachel Hestrin: under Review
Modeling Cereal Zinc Concentration in a Smallholder Setting
     With Rachel Hestrin
Soil and South Asian Stunting: Low soil zinc availability drives child stunting in Nepal
     With David Guerena, Kichan Kim
Individual and Intra-Household Effects of Universalizing Access to Subsidized Food in Odisha (India)
     With Felix Naschold, Tanvi Rao
Revisiting the African Agricultural Intensification Hypothesis in the Presence of Measurement Error
     With Kibrom Abay, Christopher B Barrett
Risk, Returns, and Welfare
     With Linden McBride

Ongoing Projects / New Work

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

I have several new projects on trace metals in soil/groundwater, crop productivity / grain nutrient content, and human health. This involves research on… (i) the impact of zinc deficiency in the soils of India and Nepal on child stunting and human zinc status, (ii) the differential impact of soil nutrients vs. maize genotype, in shaping maize zinc status in Uganda, (iii) the impact of arsenic contamination in Indus Valley groundwater on human health in Pakistan.
Working with CIMMYT India/Nepal, Kichan Kim, David Guerena, Talip Kilic, Sydney Gourlay, Osama Sajid, Syed Hasan, Ali Shah 

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.
Working with Zoe Plakias, Arnab Nandi, Mike Vuolo, Mark Patridge

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, Joshua Wilde, Zoe McLaren, 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.