The COVID-19 pandemic and fertility decline in Costa Rica: A deep plunge in the first pandemic month, a decelerated decline, and a baby bust due to fleeing migrants
Using microdata from the administrative birth registry maintained by the electoral authority of Costa Rica, this paper aims to address the knowledge gap concerning childbearing during the COVID-19 pandemic in the context of rapid fertility decline since before the pandemic, as compared to the scenario in the highly developed countries. Monthly fertility rates for the period between 2018 and 2022 were estimated. The outcome of interest was a year-on-year change in these rates. The major findings of this study are as follows: (i) A short-lived baby bust in the first full month of the pandemic that is similar to falls observed in other countries (the year-on-year decrease of fertility in January 2021 was as high as 24% for some groups); (ii) a pandemic-associated deceleration in the fertility decline, which could be interpreted as a baby boom if the counterfactual were a continuation of the recent pre-pandemic declining trend; (iii) hints of a baby boom later in the pandemic in communities with low socioeconomic status, and especially, in families with several children, which could come from unwanted pregnancies; and (iv) an anomalous drop in births from foreign-born mothers delivered during the first 9 months of the pandemic, which probably stemmed from pandemic-motivated migration out of the country. The fertility plunge in January 2021 seems to be a response to the hardships caused by pandemic mitigation measures in April 2020, as well as by the uncertainties and fears concerning COVID-19, rather than the response to the physiological harm of the disease itself. The native-born Costa Ricans saw some of the lowest total birth rates in the world during the pandemic: 1.14 and 1.13 births per woman in 2021 and 2022, respectively. These rates would have been even lower if the sharp birth decline observed before the pandemic had continued during the two pandemic years under study.
Aassve, A., Cavalli N., Mencarini, L., Plach, S., & Livi Bacci, M. (2020). The COVID-19 pandemic and human fertility. Science, 369(6502):370-371. https://doi.org/10.1126/science.abc9520
Aassve, A., Cavalli, N., Mencarini, L., Plach, S., & Sanders, S. (2021). Early assessment of the relationship between the COVID-19 pandemic and births in high-income countries. Proceedings of the National Academy of Sciences, 118(36):e2105709118. https://doi.org/10.1073/pnas.2105709118
Bailey, M.J., Bart, L., & Lang, V.W. (2022). The missing baby bust: The consequences of the Covid-19 pandemic for contraceptive use, pregnancy, and childbirth among low-income women. Population Research and Policy Review, 41(4):1549-1569. https://doi.org/10.1007/s11113-022-09703-9
Bailey, M.J., Currie, J., & Schwandt, H. (2023). The COVID-19 baby bump in the United States. Proceedings of the National Academy of Sciences, 120(34):e2222075120. https://doi.org/10.1073/pnas.2222075120
Cozzani, M., Fallesen, P., Passaretta, G., Härkönen, J., & Bernardi, F. (2023). The consequences of the COVID-19 pandemic for fertility and birth outcomes: Evidence from Spanish birth registers. In: Population and Development Review (Special Issue: Pandemic Babies? The Covid-19 Pandemic and Its Impact on Fertility and Family Dynamics). Hoboken: Wiley. https://doi.org/10.1111/padr.12536
INEC. (2018, 2019, 2020, 2021, 2022). Nacimientos. Características de la Madre, del Padre y de la Persona Recién Nacida. Datos Definitivos. San Jose, Costa Rica, Instituto Nacional de Estadística y Censos (INEC).
INEC. (2020). Indicadores Demográficos, 2009 - 2019. San Jose, Costa Rica: Instituto Nacional de Estadística y Censos (INEC).
Kearney, M.S., & Levine, P.B. (2023). The US COVID-19 baby bust and rebound. Journal of Population Economics, 36(4):2145-2168. https://doi.org/10.1007/s00148-023-00965-x
Kohler, H.P., Billari, F., & Ortega, J. (2002). The emergence of lowest-low fertility in Europe during the 1990. Population and Development Review, 24(4):641-680. https://doi.org/10.1111/j.1728-4457.2002.00641.x
Lappegård, T., Kornstad, T., Dommermuth, L., & Kristensen, A.P. (2023). Understanding the positive effects of the COVID‐19 pandemic on women’s fertility in norway. In: Population and Development Review (Special Issue: Pandemic Babies? The Covid-19 Pandemic and Its Impact on Fertility and Family Dynamics). Hoboken: Wiley. https://doi.org/10.1111/padr.12539
McDowall, D., McCleary, R., Meidiger, E., & Hay, R. (1980). Interrupted Time Series Analysis. Thousand Oaks, California: Sage Publications, Inc.
Osiewalska, B., Matysiak, A., & Kurowska, A. (2022). When are Women who Work from Home More Likely to Have Children? Working Papers 2022-13. Warsaw: University of Warsaw, Faculty of Economic Sciences.
PEN. (2021). Informe Estado de la Nación en Desarrollo Humano Sostenible 2021: Resumen. Programa Estado de la Nación (PEN) and Consejo Nacional de Rectores (CONARE). San José, Costa Rica: PEN-CONARE. Available from: https://estadonacion.or.cr/wp-content/uploads/2021/11/ resumen-en-27-2021.pdf [Last accessed on 2023 Nov 08].
Pérez-Brignoli, H., & López-Ruiz, L.A. (2017). Evaluación de Cobertura: Estadísticas de Nacimiento y Defunción Costa Rica 2000-2012. Documento Electrónico. Instituto Nacional de Estadística y Censos (INEC).
Pesando, L.M., & Abufhele, A. (2023). Declining quantity and quality of births in chile amidst the COVID-19 pandemic. In: Population and Development Review(Special issue: Pandemic Babies? The Covid-19 Pandemic and Its Impact on Fertility and Family Dynamics). Hoboken: Wiley.
Ritchie, H. (2020). Our World in Data, Coronavirus Source Data. Oxford: University of Oxford, Oxford Martin Programme on Global Development.
Rojas, G., & Romero, R. (2022). Management and impact of interventions to reduce COVID-19 cases in Costa Rica. Pan American Journal of Public Health, 46:e23. https://doi.org/10.26633/RPSP.2022.23
Rosero-Bixby, L. (2023). La Tasa de 1,3 Hijos por Mujer de 2021 y 2022 de Cara al Futuro ¿Ultrabaja Fecundidad o Posposición de la Maternidad? Implicaciones Demográficas. San José, Costa Rica: Programa Estado de la Nación (PEN), Repositorio Institucional CONARE. Available from: https://hdl.handle. net/20.500.12337/8605 [Last accessed on 2023 Nov 08].
Rosero-Bixby, L., & Jiménez-Fontana, P. (2021). Crónica de la Pandemia de Covid-19 en Costa Rica. San José, Costa Rica: Programa Estado de la Nación (PEN), Repositorio Institucional CONARE. Available from: https://hdl.handle. net/20.500.12337/8250 [Last accessed on 2023 Nov 08]
Rosero-Bixby, L., Brenes, G., & Chen, M. (2002). Fecundidad Diferencial y Número de Inmigrantes Nicaragüenses en Costa Rica. Notas de Población, p.27-52. Available from: https://hdl. handle.net/11362/12724 [Last accessed on 2023 Nov 08].
Sobotka, T., Jasilioniene, A., Galarza, A.A., Zeman, K., Nemeth, L., & Jdanov, D. (2021). Baby bust in the wake of the COVID-19 pandemic? First results from the new STFF data series. SocArXiv mvy62. https://doi.org/10.31235/osf.io/mvy62
Sobotka, T., Zeman, K., Jasilioniene, A., Winkler‐Dworak, M., Brzozowska, Z., Alustiza‐Galarza, A., et al. (2023). Pandemic roller‐coaster? Birth trends in higher‐income countries during the COVID‐19 pandemic. In: Population and Development Review (Special Issue: Pandemic Babies? The Covid-19 Pandemic and Its Impact on Fertility and Family Dynamics). Hoboken: Wiley. https://doi.org/10.1111/padr.12544
StataCorp. (2020). Stata Statistical Software: Release 17. College Station, Texas: Stata Corporation.