Economics is the social science that studies how individuals, governments, firms, and nations make choices on allocating limited resources to satisfy unlimited wants. It examines the production, distribution, and consumption of goods and services and aims to explain how economies work and how agents interact within them.


The history of economics can be traced back to ancient times, with Aristotle often credited as one of the earliest thinkers in the field. Modern economics began to take shape during the Age of Enlightenment, culminating in Adam Smith’s seminal work, "The Wealth of Nations," in 1776.

Branches of Economics

  • Microeconomics: This branch focuses on individual agents and markets, exploring issues like consumer behavior, firm production, and market equilibrium.
  • Macroeconomics: Macroeconomics looks at the economy as a whole, studying aggregated indicators like GDP, unemployment rates, and inflation.
  • Behavioral Economics: This subfield combines insights from psychology and economics to understand how individuals make economic decisions.
  • International Economics: This branch examines the effects of international trade, global markets, and the economic interactions between countries.
  • Development Economics: Focused on improving the economic well-being of people in developing countries, this branch explores issues like poverty, development policies, and international aid.

Key Concepts

  • Supply and Demand: The fundamental concept describes the relationship between the price of a good and the quantity available for sale.
  • Inflation: A general increase in the price level of goods and services in an economy over a period of time.
  • Gross Domestic Product (GDP): The monetary value of all finished goods and services produced within a country's borders in a specific time period.
  • Monetary Policy: The process by which a government or central bank manages the supply of money and interest rates.
  • Economic Systems: Different systems for organizing the production, distribution, and consumption of goods and services include capitalism, socialism, and mixed economies.
  • Economic Indicators: Key indicators like the unemployment rate, inflation rate, and balance of trade are used to gauge the health of an economy.
  • Economic Policies: Governments implement policies like taxation, subsidies, and regulation to influence economic activity.

Notable Economists

Famous economists like Adam Smith, John Maynard Keynes, and Milton Friedman have significantly shaped economic thought.

Controversies and Criticisms

Economics has faced criticism for various reasons, such as its assumptions about rational behavior and the effectiveness of free markets, as well as its perceived focus on material wealth at the expense of broader human well-being.

See Also

  • Finance - The study of investments, closely related to economics.
  • Game Theory - A mathematical model used in economics to study strategic interactions.
  • Business Administration - The management of business operations, including aspects of economic decision-making.
  • Statistics - Mathematical discipline often used in economic research and analysis.