Lesson 2/55 min

Economists and their theories

Five key economists

NameWho and what
Adam SmithBritish; known as the father of modern economics; The Wealth of Nations (1776); champion of classical and laissez-faire (free market) thought; the phrase ‘invisible hand’ is his. Followers: Ricardo, John Stuart Mill, J. B. Say, Walker and others
Alfred MarshallBritish; champion of ‘neo-classical thought’; Principles of Economics (1890); called economics a social science
Vilfredo ParetoItalian economist and philosopher; famous for the ‘Pareto equilibrium’ idea; saying: History is a graveyard of aristocracies
Lionel RobbinsBritish; called the father of the ‘modern school’; his 1932 book defines economics as balancing wants and scarce means
Sir John HicksBritish economist; Nobel Prize in Economics, 1972

Paul Samuelson

  • American economist; the first American to win the Nobel Prize in Economics, in 1970
  • The historian Randall E. Parker called him the Father of Modern Economics

Watch out: The book gives two answers for “father of modern economics”: Adam Smith in bank and Chittagong University questions, but Paul Samuelson in one job-exam question. If both are options, read the wording: “father of economics” means Adam Smith.

Theory and who proposed it

TheoryProposed by
Theory of rentDavid Ricardo
Theory of comparative costDavid Ricardo
Theory of division of labourAdam Smith
Consumer surplusAlfred Marshall
Normal profit; quasi-rentAlfred Marshall
Theory of surplus valueKarl Marx
Malthusian theory of populationThomas Malthus
Theory of optimum populationDalton
Wages fund theoryJ. S. Mill
Iron law of wagesLassalle
Gresham's lawSir Thomas Gresham
Liquidity preference theory of interestJohn Maynard Keynes
Quantity theory of moneyIrving Fisher
Vicious circle of povertyNurkse
Social choice theoryAmartya Sen

Check yourself

Who was the first American to win the Nobel Prize in Economics?

At a glance

  1. 1

    Adam Smith: The Wealth of Nations (1776); called economics the science of wealth; champion of classical and laissez-faire thought.

  2. 2

    Alfred Marshall: Principles of Economics (1890); champion of neo-classical thought.

  3. 3

    First American Nobel laureate in economics: Paul Samuelson (1970); John Hicks won in 1972.

  4. 4

    Rent and comparative cost: Ricardo; surplus value: Marx; consumer surplus: Marshall; division of labour: Smith.

  5. 5

    Liquidity preference: Keynes; quantity theory of money: Fisher; vicious circle of poverty: Nurkse.

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