EntityQ1136895· pop 23· linked from 19 articlesEngel's lawSign in to saveempirical observation in economics that as income rises, less is spent on foodConnectionsincome elasticity of demandEntityUnited NationsEntitypovertyEntityInternational Standard Book NumberEntityeconomyEntitypopulation densityEntitydigital object identifierEntityInternational Standard Serial NumberEntityhuman migrationEntityincomeEntityworld populationEntityeugenicsEntitysustainabilityEntityJSTOREntityGreen RevolutionEntitystandard of livingEntityone-child policyEntityfamily planningEntityantinatalismEntitypopulation growthEntityCategories1857 in economic historyConsumer theoryEconomic inequalityEponymous laws of economics