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Can we estimate crisis death tolls by subtracting total population estimates?: a critical review and appraisal

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  • Gaddy, Hampton
  • Gargiulo, Maria

Abstract

BACKGROUND In the absence of high-quality data, the death tolls of epidemics, conflicts, and disasters are often estimated using ad hoc methods. One understudied class of methods, which we term the growth rate discontinuity method (GRDM), estimates death tolls by projecting pre-crisis and post-crisis total population estimates using crude growth rates and then subtracting the results. Despite, or perhaps due to, its simplicity, this method is the source of prominent death toll estimates for the Black Death, the 1918 influenza pandemic, the Great Chinese Famine, and the Rwandan genocide, among others. OBJECTIVE In this article, we review the influence and validity of GRDM and its applications. METHODS Using statistical simulation and comparison with better-validated demographic methods, we assess the accuracy, precision, and biases of this method for estimating mortality in absolute and relative terms. RESULTS We find that existing GRDM estimates often misestimate death tolls by large, unpredictable margins. Simulations suggest this is because GRDM requires precision in its inputs to an extent rarely possible in the contexts of interest. CONCLUSIONS If there is sufficient data to specify GRDM well, it is probably possible to also use a more reliable method; if there is not sufficient data, GRDM estimates are so sensitive to their assumptions that they cannot be considered informative.

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  • Gaddy, Hampton & Gargiulo, Maria, 2025. "Can we estimate crisis death tolls by subtracting total population estimates?: a critical review and appraisal," LSE Research Online Documents on Economics 128030, London School of Economics and Political Science, LSE Library.
    • Handle: RePEc:ehl:lserod:128030
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    File URL: http://eprints.lse.ac.uk/128030/
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    as
    1. Jha, Saumitra & Wilkinson, Steven, 2012. "Does Combat Experience Foster Organizational Skill? Evidence from Ethnic Cleansing during the Partition of South Asia," American Political Science Review, Cambridge University Press, vol. 106(4), pages 883-907, November.
    2. repec:osf:osfxxx:9yqxw_v1 is not listed on IDEAS
    3. Remi Jedwab & Noel D. Johnson & Mark Koyama, 2022. "The Economic Impact of the Black Death," Journal of Economic Literature, American Economic Association, vol. 60(1), pages 132-178, March.
    4. Sophia Dawkins, 2021. "The problem of the missing dead," Journal of Peace Research, Peace Research Institute Oslo, vol. 58(5), pages 1098-1116, September.
    5. Gallardo-Albarrán, Daniel & de Zwart, Pim, 2021. "A bitter epidemic: The impact of the 1918 influenza on sugar production in Java," Economics & Human Biology, Elsevier, vol. 42(C).
    6. Pierre van der Eng, 2023. "Mortality from the influenza pandemic of 1918-19 in Indonesia," Departmental Working Papers 2023-06, The Australian National University, Arndt-Corden Department of Economics.
    7. Peter Ekamper & Govert E. Bijwaard & Frans W.A. van Poppel & L.H. Lumey, 2020. "War- and famine-related excess mortality among civilians in the Netherlands, 1944–1945," Journal of Maps, Taylor & Francis Journals, vol. 16(1), pages 124-131, January.
    8. Patrick Heuveline, 2015. "The boundaries of genocide: Quantifying the uncertainty of the death toll during the Pol Pot regime in Cambodia (1975-79)," Population Studies, Taylor & Francis Journals, vol. 69(2), pages 201-218, July.
    9. Helge Brunborg & Torkild Hovde Lyngstad & Henrik Urdal, 2003. "Accounting for Genocide: How Many Were Killed in Srebrenica?," European Journal of Population, Springer;European Association for Population Studies, vol. 19(3), pages 229-248, September.
    10. Steven Rosefielde, 1996. "Stalinism in post‐communist perspective: New evidence on killings, forced labour and economic growth in the 1930s," Europe-Asia Studies, Taylor & Francis Journals, vol. 48(6), pages 959-987.
    11. Bharadwaj, Prashant & Khwaja, Asim Ijaz & Mian, Atif, 2008. "The Big March: Migratory Flows after the Partition of India," Working Paper Series rwp08-029, Harvard University, John F. Kennedy School of Government.
    12. Steven Elías Alvarado & Douglas S. Massey, 2010. "Search of Peace: Structural Adjustment, Violence, and International Migration," The ANNALS of the American Academy of Political and Social Science, , vol. 630(1), pages 137-161, July.
    13. Kristian Lum & Megan Emily Price & David Banks, 2013. "Applications of Multiple Systems Estimation in Human Rights Research," The American Statistician, Taylor & Francis Journals, vol. 67(4), pages 191-200, November.
    14. Siddharth Chandra & Yan-Liang Yu, 2015. "The 1918 influenza pandemic and subsequent birth deficit in Japan," Demographic Research, Max Planck Institute for Demographic Research, Rostock, Germany, vol. 33(11), pages 313-326.
    15. Marília R. Nepomuceno & Ilya Klimkin & Dmitri A. Jdanov & Ainhoa Alustiza‐Galarza & Vladimir M. Shkolnikov, 2022. "Sensitivity Analysis of Excess Mortality due to the COVID‐19 Pandemic," Population and Development Review, The Population Council, Inc., vol. 48(2), pages 279-302, June.
    16. Amelia Hoover Green & Patrick Ball, 2019. "Civilian killings and disappearances during civil war in El Salvador (1980‒1992)," Demographic Research, Max Planck Institute for Demographic Research, Rostock, Germany, vol. 41(27), pages 781-814.
    17. Hampton Gaddy & Maria Gargiulo, 2025. "Can we estimate crisis death tolls by subtracting total population estimates? A critical review and appraisal," Demographic Research, Max Planck Institute for Demographic Research, Rostock, Germany, vol. 52(23), pages 741-796.
    18. Guo Xu, 2023. "Bureaucratic Representation and State Responsiveness during Times of Crisis: The 1918 Pandemic in India," The Review of Economics and Statistics, MIT Press, vol. 105(2), pages 482-491, March.
    19. Siddharth Chandra, 2013. "Mortality from the influenza pandemic of 1918-19 in Indonesia," Population Studies, Taylor & Francis Journals, vol. 67(2), pages 185-193, July.
    20. Siddharth Chandra & Goran Kuljanin & Jennifer Wray, 2012. "Mortality From the Influenza Pandemic of 1918–1919: The Case of India," Demography, Springer;Population Association of America (PAA), vol. 49(3), pages 857-865, August.
    21. Phelim Boyle & Cormac Grádo, 1986. "Fertility trends, excess mortality, and the Great Irish Famine," Demography, Springer;Population Association of America (PAA), vol. 23(4), pages 543-562, November.
    22. Wendy Sigle, 2023. "Like high cholesterol, population decline is a problem, but not in the way you might think..," Vienna Yearbook of Population Research, Vienna Institute of Demography (VID) of the Austrian Academy of Sciences in Vienna, vol. 21(1), pages 15-20.
    23. Ewout Frankema & Morten Jerven, 2014. "Writing history backwards or sideways: towards a consensus on African population, 1850–2010," Economic History Review, Economic History Society, vol. 67(4), pages 907-931, November.
    24. Michael Ellman & S. Maksudov, 1994. "Soviet deaths in the great patriotic war: A note," Europe-Asia Studies, Taylor & Francis Journals, vol. 46(4), pages 671-680.
    25. Malanima, Paolo, 2005. "Urbanisation and the Italian economy during the last millennium," European Review of Economic History, Cambridge University Press, vol. 9(1), pages 97-122, April.
    26. repec:cai:poeine:pope_504_0331 is not listed on IDEAS
    27. Hampton Gaddy, 2021. "A decade of TFR declines suggests no relationship between development and sub-replacement fertility rebounds," Demographic Research, Max Planck Institute for Demographic Research, Rostock, Germany, vol. 44(5), pages 125-142.
    28. Meyerowitz-Katz, Gideon & Kashnitsky, Ilya, 2020. "Comparing bad apples to orange soda: Flaws and Errors in an Estimation of Years of Life Lost Associated With School Closures and COVID-19 deaths by Christakis, Van Cleve, and Zimmerman," OSF Preprints 9yqxw, Center for Open Science.
    29. Christoph Eder, 2022. "Missing Men: Second World War Casualties and Structural Change," Economica, London School of Economics and Political Science, vol. 89(354), pages 437-460, April.
    30. Houser, Daniel & Sands, Barbara & Xiao, Erte, 2009. "Three parts natural, seven parts man-made: Bayesian analysis of China's Great Leap Forward demographic disaster," Journal of Economic Behavior & Organization, Elsevier, vol. 69(2), pages 148-159, February.
    31. Luc Reydams, 2021. "‘More than a million’: the politics of accounting for the dead of the Rwandan genocide," Review of African Political Economy, Taylor & Francis Journals, vol. 48(168), pages 235-256, April.
    32. repec:plo:pmed00:0050146 is not listed on IDEAS
    33. Shrestha, Maheshwor, 2019. "Death scares: How potential work-migrants infer mortality rates from migrant deaths," Journal of Development Economics, Elsevier, vol. 141(C).
    34. Ginevra Floridi & Maria Gargiulo & José Manuel Aburto, 2023. "Changes in fertility rates and desires in the wake of the homicide surge in Mexico," HiCN Working Papers 399, Households in Conflict Network.
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