Branches of economics



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BRANCHES OF ECONOMICS


BRANCHES OF ECONOMICS
Economics is a broad subject concerned with the optimal distribution of resources in society. Within the subject, there are several different branches which focus on different aspects. Also, there are different schools of thought which generally have different views on aspects of economics.
The first way to split economics is microeconomics and macroeconomics.

  • Microeconomics – concerned with individual markets and small aspects of the economy.

  • Macroeconomics – concerned with the whole aggregate economy. Issues such as inflation, economic growth and trade.

To some extent, the split is artificial. Aspects of microeconomics filter into macro-economics. For example, if you take the study of developing economies, this involves both looking at micro-aspects of development (agricultural markets) and macro-aspects like growth. See the difference between macro and microeconomics.

Branches of economics


1. Classical economics
Classical economics is often considered the foundation of modern economics. It was developed by Adam Smith, David Ricardo, Jean-Baptiste Say. Classical economics is based on

  • Operation of free markets. How the invisible hand and market mechanism can enable an efficient allocation of resources.

  • Classical economics suggests that generally, economies work most efficiently when government intervention is minimal and concerned with the protection of private property, promotion of free trade and limited government spending.

  • Classical economics does recognise that a government is needed for providing public goods, such as defence, law and order and education.

2. Neo-classical economics
Key people: Leon Walrus, William Jevons, John Hicks, George Stigler and Alfred Marshall.
Neo-classical economics built on the foundations of free-market based classical economics. It included new ideas such as

  • Utility maximisation.

  • Rational choice theory

  • Marginal analysis. How individuals will make decisions at the margin – choosing the best option given marginal cost and benefit.

Neo-classical economics is often considered to be orthodox economics. It is the economics taught in most text-books as the starting point for economics teaching. The tools of neo-classical economics (supply and demand, rational choice, utility maximisation) can be used in new fields and also for critiques.

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