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BACKGROUND TO DEMAND/CONSUMPTION (CONTINUED…………….)

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Introduction to Economics ­ECO401
VU
Lesson 4.2
BACKGROUND TO DEMAND/CONSUMPTION (CONTINUED................)
The Problem of Uncertainty:
The problem of uncertainty is integral to consumption decisions especially in the matter of
purchasing durable goods. Uncertainty means assigning probabilities to the outcomes.
A consumer's response to uncertainty depends upon her attitude to risk: whether she is:
a. Risk averse.
b. Risk-loving.
c. Risk neutral.
Risk means to take a chance after the probabilities have been assigned.
The odds ratio (OR) is the ratio of the probability of success to the probability of failure. It can
be equal to 1, less than 1 or greater than 1. If it is equal to 1 we call it fair odds, if less then 1
unfavorable odds, and if greater 1 then favorable odds.
A risk neutral person is one who buys a good when OR > 1. He is indifferent when OR = 1
and will not buy when OR < 1.
A risk averse person will not buy if OR < 1. He will also not buy if OR = 1. He might also not
decide to buy if OR > 1.
A risk loving person will buy if OR > 1 or = 1, but he might also buy when OR is < 1.
The degree of risk aversion increases as your income level falls, due to diminishing marginal
utility of income.
Risk aversion is a common feature of rational utility maximizing behavior by the average
consumer.
The total utility curve for a risk neutral person will be a straight line while that of a risk averse
person will be convex. The greater the convexity (curvature) the more risk averse the person
will be.
Risk hedging can be used to reduce the extent to which concerns about uncertainty affect our
daily lives.
Insurance companies operate under the principle of law of large numbers.
In the presence of asymmetric information, an insurance company has to contend with the
problems of adverse selection (people who want to buy insurance are also the most risky
customers; an ex-ante problem) and moral hazard (once a person is insured his behavior
might become more rash; an ex-post problem).
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Table of Contents:
  1. INTRODUCTION TO ECONOMICS:Economic Systems
  2. INTRODUCTION TO ECONOMICS (CONTINUED………):Opportunity Cost
  3. DEMAND, SUPPLY AND EQUILIBRIUM:Goods Market and Factors Market
  4. DEMAND, SUPPLY AND EQUILIBRIUM (CONTINUED……..)
  5. DEMAND, SUPPLY AND EQUILIBRIUM (CONTINUED……..):Equilibrium
  6. ELASTICITIES:Price Elasticity of Demand, Point Elasticity, Arc Elasticity
  7. ELASTICITIES (CONTINUED………….):Total revenue and Elasticity
  8. ELASTICITIES (CONTINUED………….):Short Run and Long Run, Incidence of Taxation
  9. BACKGROUND TO DEMAND/CONSUMPTION:CONSUMER BEHAVIOR
  10. BACKGROUND TO DEMAND/CONSUMPTION (CONTINUED…………….)
  11. BACKGROUND TO DEMAND/CONSUMPTION (CONTINUED…………….)The Indifference Curve Approach
  12. BACKGROUND TO DEMAND/CONSUMPTION (CONTINUED…………….):Normal Goods and Giffen Good
  13. BACKGROUND TO SUPPLY/COSTS:PRODUCTIVE THEORY
  14. BACKGROUND TO SUPPLY/COSTS (CONTINUED…………..):The Scale of Production
  15. BACKGROUND TO SUPPLY/COSTS (CONTINUED…………..):Isoquant
  16. BACKGROUND TO SUPPLY/COSTS (CONTINUED…………..):COSTS
  17. BACKGROUND TO SUPPLY/COSTS (CONTINUED…………..):REVENUES
  18. BACKGROUND TO SUPPLY/COSTS (CONTINUED…………..):PROFIT MAXIMISATION
  19. MARKET STRUCTURES:PERFECT COMPETITION, Allocative efficiency
  20. MARKET STRUCTURES (CONTINUED………..):MONOPOLY
  21. MARKET STRUCTURES (CONTINUED………..):PRICE DISCRIMINATION
  22. MARKET STRUCTURES (CONTINUED………..):OLIGOPOLY
  23. SELECTED ISSUES IN MICROECONOMICS:WELFARE ECONOMICS
  24. SELECTED ISSUES IN MICROECONOMICS (CONTINUED……………)
  25. INTRODUCTION TO MACROECONOMICS:Price Level and its Effects:
  26. INTRODUCTION TO MACROECONOMICS (CONTINUED………..)
  27. INTRODUCTION TO MACROECONOMICS (CONTINUED………..):The Monetarist School
  28. THE USE OF MACROECONOMIC DATA, AND THE DEFINITION AND ACCOUNTING OF NATIONAL INCOME
  29. THE USE OF MACROECONOMIC DATA, AND THE DEFINITION AND ACCOUNTING OF NATIONAL INCOME (CONTINUED……………..)
  30. MACROECONOMIC EQUILIBRIUM & VARIABLES; THE DETERMINATION OF EQUILIBRIUM INCOME
  31. MACROECONOMIC EQUILIBRIUM & VARIABLES; THE DETERMINATION OF EQUILIBRIUM INCOME (CONTINUED………..)
  32. MACROECONOMIC EQUILIBRIUM & VARIABLES; THE DETERMINATION OF EQUILIBRIUM INCOME (CONTINUED………..):The Accelerator
  33. THE FOUR BIG MACROECONOMIC ISSUES AND THEIR INTER-RELATIONSHIPS
  34. THE FOUR BIG MACROECONOMIC ISSUES AND THEIR INTER-RELATIONSHIPS (CONTINUED…….)
  35. THE FOUR BIG MACROECONOMIC ISSUES AND THEIR INTER-RELATIONSHIPS (CONTINUED…….):Causes of Inflation
  36. THE FOUR BIG MACROECONOMIC ISSUES AND THEIR INTER-RELATIONSHIPS (CONTINUED…….):BALANCE OF PAYMENTS
  37. THE FOUR BIG MACROECONOMIC ISSUES AND THEIR INTER-RELATIONSHIPS (CONTINUED…….):GROWTH
  38. THE FOUR BIG MACROECONOMIC ISSUES AND THEIR INTER-RELATIONSHIPS (CONTINUED…….):Land
  39. THE FOUR BIG MACROECONOMIC ISSUES AND THEIR INTER-RELATIONSHIPS (CONTINUED…….):Growth-inflation
  40. FISCAL POLICY AND TAXATION:Budget Deficit, Budget Surplus and Balanced Budget
  41. MONEY, CENTRAL BANKING AND MONETARY POLICY
  42. MONEY, CENTRAL BANKING AND MONETARY POLICY (CONTINUED…….)
  43. JOINT EQUILIBRIUM IN THE MONEY AND GOODS MARKETS: THE IS-LM FRAMEWORK
  44. AN INTRODUCTION TO INTERNATIONAL TRADE AND FINANCE
  45. PROBLEMS OF LOWER INCOME COUNTRIES:Poverty trap theories: