Adam Smith
Contribution: Classical Economics and Theory of Absolute Advantage
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Adam Smith is widely regarded as the father of modern economics. He introduced the idea of absolute advantage in his seminal work The Wealth of Nations (1776).
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Absolute Advantage refers to a country’s ability to produce a good more efficiently than another country, making it beneficial for nations to specialize in the production of goods where they have this advantage and trade with others.
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His ideas laid the foundation for free trade and the concept of the “invisible hand” guiding markets.
Alfred Marshall
Contribution: Microeconomics, Price Theory, and Elasticity
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Alfred Marshall is one of the founders of microeconomic theory. His major work, Principles of Economics (1890), introduced key concepts such as price elasticity of demand, consumer surplus, producer surplus, and marginal utility.
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He emphasized the role of supply and demand in determining prices and also focused on the importance of market equilibrium.
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Marshall’s ideas formed the basis for much of modern microeconomics and influenced economic policy and welfare economics.