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From Longman Dictionary of Contemporary English
Related topics: Economics, Business basics
economicsec‧o‧nom‧ics /ˌekəˈnɒmɪks, ˌiː- $ -ˈnɑː-/ ●●○ W3 AWL noun  1 [uncountable]PE the study of the way in which money and goods are produced and usedeconomic a Harvard professor of economics2 [plural]BB the way in which money influences whether a plan, business etc will work effectively the economics of the scheme home economicsGRAMMAR: Singular or plural verb?In meaning 1, economics is followed by a singular verb: Economics is often studied with politics.In meaning 2, economics is followed by a plural verb: The economics do not add up.
Examples from the Corpus
economicsHe knows very little about economics or international finance.He received a master's degree in agricultural economics and a doctorate in economics and marketing from Cornell University.Whereas the endangered species listing is determined solely upon scientific data, economics play a role in deciding critical habitat.A knowledge of development economics and the challenges faced by a small, developing country would be an advantage.Mr Coase asked if this analysis was good economics, and showed that it was not.Once a week the boys went to shop and the girls to home economics.In economics, its use is a blend of two ideas, abstraction and pure problem-solving.Keynes's theories have had an important influence on modern economics.The reader will soon discover that I think very little of certain of the central ideas of economics.He studied economics at Harvard University.However, at present, the economics of using solar-produced electricity to produce hydrogen from water by electrolysis are poor.The economics of building new subway lines are being studied.
From Longman Business Dictionaryeconomicsec‧o‧nom‧ics /ˌekəˈnɒmɪks, ˌiː--ˈnɑː-/ nounECONOMICS1[uncountable] the study of the way in which wealth is produced and usedOur consultants include a professor of economics at Harvard University. applied economics classical economics development economics industrial economics mathematical economics supply-side economics welfare economics2[plural] calculations of whether an activity or business will be profitable or notThe economics of producing oil from coal do not look attractive. see also macroeconomics, microeconomics