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Chapter 2
Course: Microeconomics
5 Documents
Students shared 5 documents in this course
University: Taylor's University Lakeside Campus
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Tutorial 2
Summary
Part 1: PPF
Recall: scarcity forces us to choose between options. Choosing an option → tradeoff and
opportunity cost.
oProblem: how to show tradeoff and opportunity cost using a diagram?
Answer: PPF
PPF: a curve that shows all possible combinations of the production of 2 goods when all
resources / FOP are fully used / perfectly allocated
oTo increase the production of 1 good → need to reduce the production of another
good → opportunity cost arises
3 usual shapes of PPF curve:
oConstant opportunity cost = linear PPF (straight line)
oIncreasing opportunity cost = concave PPF (bowed outward)
oDecreasing opportunity cost = convex PPF (bowed inward)
Example: Learning a new skill
What is economic growth and how to show economic growth using PPF?
oEconomic growth: increase in total productions / outputs
oEconomic growth can be shown by shifting the PPF curve outward equally on
both axes or just on 1 axis.
Part 2: Market system (Circular Flow of Income)
Market system: a simple diagram showing the flow of money / income for all
transactions.
Involve economic sectors / agents / participants like Household (representing people with
factors of production) and Firm (representing businesses that produce and sell goods and
services / outputs to household).
oHousehold sector buys goods and services in goods market and sells FOP in
factor market
oFirm sector buys FOP in factor market and sells goods and services in goods
market
Can be illustrated with the circular flow of income diagram
Recall: free market: transactions between household and firm sectors with minimal govt
restrictions.
oFor free market to work, property rights must be enforced by govt.
Property rights: the rights to own, use and transact their properties / assets.
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