🌐EnglishEnglishEspañolFrançaisPortuguêsSvenskaTürkçeРусский한국어中文日本語EntityQ2917574· pop 18· linked from 39 articlesCampbell's lawadage about perverse incentivesAvailable in 18 languagesEspañolFrançais中文日本語PortuguêsBulgarianCatalanCzechFinnishGalicianHebrewConnectionsperverse incentiveEntityBarack ObamaPersonGeorge W. BushCategories1976 in economic historyAdagesEponymous laws of economics