Scarcity & Choice

NODE 01

Foundations

• Allocation of scarce resources.
• Resources have alternative uses.
• Goal: satisfy human wants.
• Scarcity causes the problem of choice.

NODE 02

Wants & Needs

• Needs: Necessary for basic living.
• Wants: Desires beyond necessities.
• Wants are numerous & change over time.
• Wants can only be satisfied temporarily.

NODE 03

Economic Resources

LND

LAB

CAP

ENT

• Land: Natural resources.
• Labour: Human physical/mental effort.
• Capital: Produced means of production.
• Entrepreneurship: Coordination & risk.

NODE 04

Scarcity

• Insufficient to satisfy all wants simultaneously.
• Relative to competing alternative uses.
• Applies to Time, Income, Land, Budgets.
• Scarcity ≠ temporary shortage.

NODE 05

Choice

• Selecting one alternative among competitors.
• Individuals choose Consume vs Save.
• Firms choose Product A vs B.
• Governments choose Healthcare vs Defence.

NODE 06

Alternative Uses

FRM

IND

REC

HSG

• Land: Farming vs Housing vs Industry.
• Time: Work vs Study vs Leisure.
• Money: Consume vs Save vs Invest.
• Choosing one sacrifices another.

NODE 07

Trade-off

• Obtaining more of A requires giving up B.
• Consumption today ↔ Less saving.
• Defence spending ↔ Public programmes.
• Scarcity → Choice → Trade-off.

NODE 08

Opportunity Cost

↔

• Value of the next best alternative forgone.
• The sacrifice made when a choice is made.
• E.g., Buying a book = ₹1000 of saving forgone.
• E.g., Studying = income from working forgone.

NODE 09

Next Best Alternative

OPT D

OPT C

OPT B (FORGONE)

OPT A (CHOSEN)

• Opp. Cost is NOT the sum of all alternatives.
• It is only the *single* next best alternative.
• If choosing A, the cost is B (not B+C+D).
• Provided B was the highest-valued sacrifice.

NODE 10

Explicit & Implicit Costs

• Explicit: Direct monetary payment (e.g., transport fare).
• Implicit: Opportunity cost of using an owned resource.
• E.g., Foregone rent from using own building.
• Crucial for Producer Behaviour.

NODE 11

Cost at All Levels

• Individual: Education vs Current earnings.
• Household: Car vs Savings.
• Firm: Factory capacity for A vs B.
• Govt: Programme A vs Programme B.

NODE 12

Resource Allocation

• Deciding where scarce resources are used.
• How much resource to different activities.
• Produce specific combination of goods.
• Distribution among society.

NODE 13

Efficiency

vs

• Productive: Output without unnecessary waste.
• Allocative: Directed to goods most valued by society.
• Making the best possible use of constraints.
• Avoiding inefficient/unutilised resources.

NODE 14

Production Possibility

• PPC: Max combinations of two goods.
• Given resources & technology (used efficiently).
• On curve = efficient; Inside = unutilised.
• Outside curve = unattainable currently.

NODE 15

Shift vs Movement

↗

• Movement: Reallocation between existing goods.
• Outward Shift: Capacity increases (tech, more resources).
• Inward Shift: Capacity decreases (disaster, war).
• Demonstrates absolute economic growth.

NODE 16

Economic Systems

• Traditional: Customs & traditions.
• Market: Prices & markets drive allocation.
• Centrally Planned: State/planning authority.
• Mixed: Markets + Government involvement.

NODE 17

Incentives

• Influences behaviour & decision-making.
• Monetary: Wages, profits, taxes, subsidies.
• Non-monetary: Status, recognition.
• Changes choices → affects resource allocation.

NODE 18

The Economist's Role

• Not merely about money.
• Analysing production → consumption → distribution.
• Studying behaviour, institutions, policy outcomes.
• Solving real-world allocation issues.

NODE 19

The Master Logic

• Unlimited Wants + Scarce Resources.
• Alternative Uses → Scarcity → Choice.
• Trade-Off → Opportunity Cost.
• Resource Allocation → Economic Outcome.