Details about Sydney Gourlay

Access statistics for papers by Sydney Gourlay.

Last updated 2026-09-14. Update your information in the RePEc Author Service.

Short-id: pgo777

Working Papers

2026

1. In Tablets We Trust ? Validation of the Use of Tablet-Based Tools for Land Area Measurement in Household Surveys
   Policy Research Working Paper Series, The World Bank
2. Six Years of High-Frequency Phone Surveys: Lessons from Sub-Saharan Africa
   Policy Research Working Paper Series, The World Bank
3. Treatment Geometry and Causal Identification with Earth Observation Data
   Papers, arXiv.org

2024

4. Addressing Soil Quality Data Gaps with Imputation: Evidence from Ethiopia and Uganda
   IZA Discussion Papers, IZA Network @ LISER
   Also in GLO Discussion Paper Series, Global Labor Organization (GLO) (2024)
   2023 Annual Meeting, July 23-25, Washington D.C., Agricultural and Applied Economics Association (2023)
5. Fertilizer Price Shocks in Smallholder Agriculture: Cross-Country Evidence from High-Frequency Phone Surveys in Sub-Saharan Africa
   Policy Research Working Paper Series, The World Bank View citations (1)

2022

6. From Necessity to Opportunity: Lessons for Integrating Phone and In-Person Data Collection for Agricultural Statistics in a Post-Pandemic World
   Policy Research Working Paper Series, The World Bank View citations (1)
7. Is Dirt Cheap ? The Economic Costs of Failing to Meet Soil Health Requirements on Smallholder Farms
   Policy Research Working Paper Series, The World Bank
   See also Journal Article Is dirt cheap? The economic costs of failing to meet soil health requirements on smallholder farms, Agricultural Economics, International Association of Agricultural Economists (2023) View citations (1) (2023)
8. Measuring Land Tenure at the Individual Level: Lessons from Methodological Research in Armenia
   Policy Research Working Paper Series, The World Bank
9. Non-Labor Input Quality and Small Farms in Sub-Saharan Africa: A Review
   Policy Research Working Paper Series, The World Bank

2021

10. Household Agriculture and Food Security in the Face of COVID-19: Evidence from Five Sub-Saharan African Countries
    2021 Conference, August 17-31, 2021, Virtual, International Association of Agricultural Economists
11. Locust Invasion in Ethiopia
    World Bank Publications - Reports, The World Bank Group

2018

12. Eyes in the sky, boots on the ground: assessing satellite- and ground-based approaches to crop yield measurement and analysis in Uganda
    Policy Research Working Paper Series, The World Bank View citations (8)

2017

13. Collecting the dirt on soils: advancements in plot-level soil testing and implications for agricultural statistics
    Policy Research Working Paper Series, The World Bank View citations (4)
14. Could the debate be over ? errors in farmer-reported production and their implications for the inverse scale-productivity relationship in Uganda
    Policy Research Working Paper Series, The World Bank View citations (33)

2016

15. Cheaper, faster, and more than good enough: is GPS the new gold standard in land area measurement ?
    Policy Research Working Paper Series, The World Bank View citations (12)
16. Land measurement bias and its empirical implications: evidence from a validation exercise
    Policy Research Working Paper Series, The World Bank View citations (7)
    See also Journal Article Land Measurement Bias and Its Empirical Implications: Evidence from a Validation Exercise, Economic Development and Cultural Change, University of Chicago Press (2019) View citations (32) (2019)

2015

17. Welcome to Fantasyland: Comparing Approaches To Land Area Measurement In Household Surveys
    2015 Conference, August 9-14, 2015, Milan, Italy, International Association of Agricultural Economists View citations (1)

2013

18. From guesstimates to GPStimates: land area measurement and implications for agricultural analysis
    Policy Research Working Paper Series, The World Bank View citations (8)

2011

19. Political Economy of Antidumping Reviews: The Impact of Discretion at the International Trade Administration
    Working Papers, American University, Department of Economics View citations (9)

Journal Articles

2025

1. Are you s(ec)ure? assessing the sensitivity of land tenure security estimates to survey design choices
   Food Policy, 2025, 134, (C)
2. Smallholder farming, fertilizer use, and the polycrisis period: Cross-country evidence from longitudinal surveys in Sub-Saharan Africa
   Food Policy, 2025, 133, (C) View citations (1)

2023

3. From necessity to opportunity: lessons for integrating phone and in-person data collection
   European Review of Agricultural Economics, 2023, 50, (4), 1364-1400 View citations (6)
4. Is dirt cheap? The economic costs of failing to meet soil health requirements on smallholder farms
   Agricultural Economics, 2023, 54, (6), 793-818 View citations (1)
   See also Working Paper Is Dirt Cheap ? The Economic Costs of Failing to Meet Soil Health Requirements on Smallholder Farms, Policy Research Working Paper Series (2022) (2022)
5. Review: Purchased agricultural input quality and small farms
   Food Policy, 2023, 116, (C) View citations (15)

2021

6. Viewpoint: High-frequency phone surveys on COVID-19: Good practices, open questions
   Food Policy, 2021, 105, (C) View citations (15)

2020

7. Eyes in the Sky, Boots on the Ground: Assessing Satellite‐ and Ground‐Based Approaches to Crop Yield Measurement and Analysis
   American Journal of Agricultural Economics, 2020, 102, (1), 202-219 View citations (55)

2019

8. A new spin on an old debate: Errors in farmer-reported production and their implications for inverse scale - Productivity relationship in Uganda
   Journal of Development Economics, 2019, 141, (C) View citations (76)
9. A thing of the past? Household surveys in a rapidly evolving (agricultural) data landscape: Insights from the LSMS‐ISA
   Agricultural Economics, 2019, 50, (S1), 51-62 View citations (10)
10. Land Measurement Bias and Its Empirical Implications: Evidence from a Validation Exercise
    Economic Development and Cultural Change, 2019, 67, (3), 595 - 624 View citations (32)
    See also Working Paper Land measurement bias and its empirical implications: evidence from a validation exercise, Policy Research Working Paper Series (2016) View citations (7) (2016)

2015

11. Editor's choice From Guesstimates to GPStimates: Land Area Measurement and Implications for Agricultural Analysis
    Journal of African Economies, 2015, 24, (5), 593-628 View citations (91)