136387 20251113150204.0 doi 10.1007/s10834-024-09971-x sideral 139227 ART-2025-139227 eng Casado, José M. Family size and food consumption: exploring economies of scale with panel data 2025 Access copy available to the general public Unrestricted We analyze the effects of family size on food consumption. Specifically, we explore the economies of scale that emerge in families, taking advantage of a very rich panel data for Spanish consumers. We hypothesize that family public goods induce economies of scale in consumption and, consequently, larger families should have higher per capita consumption of private goods, such as food. To that end, we estimate the Quadratic Almost Ideal Demand System to derive own-price and income elasticities, which allows us to test the economies of scale conditions on food consumption. Our results show that the positive relationship between per capita food expenditure and family size holds in only 585 observations, with these families being characterized as having per capita income in the two highest centiles of the distribution. Our results should be interpreted in the context of the particular economic crises of the 1970s and 1980s, as a consequence of the economic shocks due to very high oil prices that affected Spain. info:eu-repo/grantAgreement/ES/DGA/S32-23R info:eu-repo/semantics/openAccess by https://creativecommons.org/licenses/by/4.0/deed.es 2.9 2024 FAMILY STUDIES 9 / 66 = 0.136 2024 Q1 T1 ECONOMICS 129 / 617 = 0.209 2024 Q1 T1 0.921 2024 Social Psychology 2024 Q2 Economics and Econometrics 2024 Q2 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Giménez-Nadal, José Ignacio Universidad de Zaragoza (orcid)0000-0002-1610-5451 Labeaga, José M. Molina, José Alberto Universidad de Zaragoza (orcid)0000-0002-9437-4606 4000 415 Universidad de Zaragoza Dpto. Análisis Económico Área Fund. Análisis Económico 46 (2025), 373–382 J. fam. econ. issues Journal of Family and Economic Issues 1058-0476 867273 http://zaguan.unizar.es/record/136387/files/texto_completo.pdf Versión publicada 2253426 http://zaguan.unizar.es/record/136387/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:136387 articulos driver 2025-11-13-15:00:47 ARTICLE