Hailemariam Ayalew
@Haileaya1
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Departmental Lecturer in Development Economics | Oxford Department of International Development | University of Oxford.
Joined July 2020
🚨 New in JDE! How accurate are livestock stats in Africa? Our new paper shows that self-reported livestock data in Ethiopia underestimates ownership by up to 39%. Nudges help a bit—direct counting helps a lot. Read: https://t.co/h6YyapB4mz
#Livestock #EconTwitter #DevEcon #JDE
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Today is the day! We're discussing work that aims to inform policy & investments to rebuild conflict-affected communities in Ethiopia. đź’¬ @NamakuloC @Haileaya1 @kallehi @kkosec @KibromAbay @KibromTafere & more! #NPSInitiative #FCMInitiative
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Join @IFPRI @CGIAR @GROOTSKenya @CGIARGender @USAID @IFDC #NEXUSGainsInitiative on May 8 to discuss #Gender & #SoilHealth at the Africa Fertilizer & Soil Health Summit. Register now: https://t.co/zhvjHuUyv0.
#AFSH24 #Agenda2063 #SoilHealth @_AfricanUnion
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📣 A big thank you to our incredible Event Director, @barbramuzata , our esteemed speakers, and our dedicated moderators for an outstanding conference today! @CGIAR
@IITA_CGIAR
@IFPRI_Africa
#SoilHealth #FertilizerUsage
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Together, we shared cutting-edge research findings, explored policy pathways, and pinpointed crucial areas for future investments. @CGIAR
@IITA_CGIAR
@IFPRI_Africa
#SoilHealth #FertilizerUsage
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6. Could this be the final nail in the IR hypothesis coffin? @luckywinner1 @Carol_Newman @KibromAbay @Frederic_Kosmowski @Tesfaye_Sida @AJAE_AAEA @marcfbellemare
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5. Fortunately, even modest improvements in protocol accuracy can have big impacts on accuracy
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4. We also show that some of the “gold standard” protocols (like GPS-based areas) suffer from non-classical measurement errors and can generate spurious IR.
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3. We find that error in both sets of measures contributes to an apparent IR – in our data, addressing both sources of error results in no significant size-productivity relationship.
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2. To begin with, we consider a much fuller range of protocols for measuring plot area and production, reflecting the range of current data collection practices (six alternative measures for estimating land area and six different protocols for measuring production).
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1. Our new AJAE paper revisits that old chestnut: the inverse size-productivity relationship in agriculture: https://t.co/35w8jUrQbN. What’s new, you ask?
onlinelibrary.wiley.com
Monitoring smallholder agricultural productivity growth, one of the targets of the Sustainable Development Goals, rests on accurate measures of crop production and land area. Existing methods and...
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Forthcoming in the AJAE: "Revisiting the size-productivity relationship with imperfect measures of production and plot size," by Hailemariam Ayalew, @luckywinner1 , Carol Newman, @KibromAbay Frederic Kosmowskie, and Tesfaye Shiferaw
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Our collaborative paper on predicting yield at scale using different ground and remote sensing techniques is just out. We conclude using remote sensing to predict yield at scale is not useful when the training data quality is low. @luckywinner1 @Haileaya1
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My paper with @Carol_Newman and @luckywinner1 is just published in the JDE. We show that targeted fertilizer recommendations increase productivity & profits for smallholders in Ethiopia. @ODID_QEH @tcddublin @CIMMYT
https://t.co/WQP1APmtMx
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How sensitive are empirical assessments of the size-productivity relationship to alternative protocols of production & land area measurement? @Haileaya1 (@ODID_QEH) discusses this in relation to a study of 3 maize growing districts in Ethiopia at today's CSAE Research Workshop.
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How accurate are yield estimates from crop cuts? Evidence from smallholder maize farms in Ethiopia- our recent paper published at Food Policy. https://t.co/skWX0kjZGI
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Our recent paper - "Is land certification pro-poor? Evidence from Ethiopia"- published at Land Use Policy. We find that land certification significantly improves the welfare of poor rural households in Ethiopia. @yeshwas @luckywinner1 AddThis | Home
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Our recent paper - “Implications of intra-plot heterogeneity for yield estimation accuracy: Evidence from smallholder maize systems in Ethiopia”- published at Field Crops Research. #agriculture #research #CIMMYT
https://t.co/YKp1rollzE
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