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Introduction To Economics

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Introduction To Economics

  1. 1. -A small discussion
  2. 2. <ul><li>Definition of Economics </li></ul><ul><li>Nature and scope of economic theory </li></ul><ul><li>Positive and normative economics </li></ul>
  3. 3. <ul><li>Economics is derived from two Greek words </li></ul><ul><li>Oikos- a house </li></ul><ul><li>Nemein- to manage </li></ul><ul><li>Means “managing an household” </li></ul>Emphasis Significant contribution Wealth Adam Smith Welfare Alfred Marshall Scarcity Lionel Robbins growth Paul Samuelson
  4. 4. <ul><li>Adam smith (1723 - 1790), </li></ul><ul><li>Father of Economics </li></ul><ul><li>Book “An Inquiry into Nature and Causes of Wealth of Nations” (1776) </li></ul><ul><li>defined economics as the practical science of production and distribution of wealth. </li></ul>
  5. 5. <ul><li>Alfred Marshall (1842 - 1924) wrote a book “Principles of Economics” (1890) </li></ul><ul><li>Welfare definition </li></ul><ul><li>defined “Political Economy” or Economics is a study of mankind in the ordinary business of life; </li></ul><ul><li>it examines that part of individual and social action which is most closely connected with the attainment and with the use of the material requisites of well being”. </li></ul>
  6. 6. <ul><li>Lionel Robbins (Scarcity definition) </li></ul><ul><li>book “An Essay on the Nature and Significance of Economic Science” in 1932. </li></ul><ul><li>According to him, “economics is a science which studies human behaviour as a relationship between ends and scarce means which have alternative uses” </li></ul><ul><li>Ends – human wants </li></ul><ul><li>Means – resources with which wants are fulfilled </li></ul>
  7. 7. <ul><li>Prof. Paul Samuelson (Growth definition) </li></ul><ul><li>defined economics as “the study of how men and society choose, with or without the use of money, to employ scarce productive resources which could have alternative uses, to produce various commodities over time, and distribute them for consumption, now and in the future among various people and groups of society” </li></ul>
  8. 8. <ul><li>Economics - A Science and an Art </li></ul><ul><li>Economics - A Social Science </li></ul><ul><li>Economics is both positive and normative science. </li></ul>
  9. 9. <ul><li>?????????? </li></ul><ul><li>It only describes what it is </li></ul><ul><li>Positive science does not indicate what is good or what is bad to the society. </li></ul><ul><li>It will simply provide results of economic analysis of a problem. </li></ul><ul><li>A positive statement is based on facts. </li></ul>
  10. 10. <ul><li>It makes distinction between good and bad. </li></ul><ul><li>It prescribes what should be done to promote human welfare. </li></ul><ul><li>A normative statement involves ethical values. </li></ul><ul><li>Policy making </li></ul>
  11. 11. <ul><ul><li>How much will a new petrol tax raise the price of petrol? </li></ul></ul><ul><ul><li>Will an increase in the minimum wage increase unemployment? </li></ul></ul><ul><ul><li>Why is the price of Pop corn is Rs 4.20 ? </li></ul></ul><ul><ul><li>Should there be a new tax on petrol? </li></ul></ul><ul><ul><li>Should there be an increase in the minimum wage? </li></ul></ul><ul><ul><li>What should the price of Pop corn be? </li></ul></ul>Therefore, economics is a positive as well as normative science.
  12. 12. <ul><li>MICROS- Greek- Small (millionth part) </li></ul><ul><li>Analyses the economic behaviour of any particular decision making unit such as a household or a firm. </li></ul><ul><li>Studies the flow of economic resources or factors of production from the households or resource owners to business firms and flow of goods and services from business firms to households </li></ul><ul><li>Studies the behaviour of individual decision making unit with regard to fixation of price and output and its reactions to the changes in demand and supply conditions. </li></ul><ul><li>Consumer behavior, product and factor pricing </li></ul><ul><li>Hence, microeconomics is also called price theory </li></ul>
  13. 13. <ul><li>THANK YOU </li></ul>

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