AP Economics - Basic Economic Concepts

AP® Economics Overview

This appears to be an introductory unit for AP® Economics.

The Cow Analogy

  • The cow analogy is used as a teaching tool, unfolding over five rounds:
    • Round 1: Few participants understand the concept initially.
    • Round 2: Direct instruction is effective for some.
    • Round 3: Questioning helps to advance understanding.
    • Round 4: A direct explanation clarifies the concept for most.
    • Round 5: Everyone understands the concept by assisting a partner.
  • The analogy emphasizes that:
    • Understanding the concept quicker doesn't equate to being "smarter."
    • Those who understand have a responsibility to help others.
  • Key actions to understand the concept include:
    • Staying engaged.
    • Asking Questions.
    • Seeking help.
    • Being present and attentive.

Key Economic Indicators

  • SRAS: Short-Run Aggregate Supply
  • LRAS: Long-Run Aggregate Supply
  • LRPC: Long-Run Phillips Curve
  • Price Level: A measure of the average prices of goods and services in an economy.
  • Inflation: A general increase in prices and fall in the purchasing value of money.
  • SRPC: Short-Run Phillips Curve
  • Q_y: Aggregate Output
  • GDP: Gross Domestic Product
  • Y: National Income
  • U_y: Unemployment Rate
  • R: Interest Rates

Unit 1: Basic Economic Concepts

  • The unit covers fundamental economic principles.

Changes in AP Micro Course and Exam

  • The Circular Flow Model is no longer explicitly tested but is recommended for teaching.
  • Topic 1.5 is dedicated to Cost-Benefit Analysis, including explicit and implicit costs (previously in Unit 3).
  • Marginal utility calculation and utility maximization are now in Unit 1 (previously in Unit 2).
  • Online Personal Progress Check includes multiple-choice questions and Free Response Questions (FRQs).

Topic 1.1: Scarcity

  • Scarcity is a core concept in both macroeconomics and microeconomics.

Economics: More Than Just Money

  • Economics is about decision-making and improving one's way of thinking.
  • Economics is relevant as it enhances decision-making skills.

Defining Economics

  • Economics is the study of choices related to scarcity.
  • Scarcity: Unlimited wants exceed limited resources.
  • Choices are necessary due to the inability to have everything desired.
  • Economics studies choices made by individuals, firms, and governments.

Textbook Definition of Economics

  • Economics: A social science focused on the efficient use of scarce resources to maximize satisfaction.
  • It examines how individuals and societies handle scarcity.
  • Examples of economic choices:
    • Consumers choosing between goods (e.g., jeans or shoes).
    • Businesses deciding on hiring levels.
    • Governments allocating funds (e.g., welfare spending).

Scarcity Quote

  • George Washington quote: "We must consult our means rather than our wishes."
  • Relates to scarcity by highlighting the need to make decisions based on available resources, not desires.

Economic Terminology

  • Many economic terms have different meanings outside of economics (e.g., utility, marginal, capital, demand, investment).
  • Students should be encouraged to use economic terms correctly to avoid confusion.

All Resources are Scarce

  • Resources like oil are scarce.

Microeconomics vs. Macroeconomics

  • MICROeconomics: Study of individual units like individuals, firms, and specific markets.
    • Examples: supply and demand, production costs, labor markets.
  • MACROeconomics: Study of the economy as a whole.
    • Examples: economic growth, government spending, inflation, unemployment, international trade.

Positive vs. Normative Statements

  • Positive Statements: Based on facts and avoids value judgments (what is).
  • Normative Statements: Includes value judgments (what ought to be).

How Economics is Used

  • Theoretical Economics: Economists use the scientific method to develop theories.
  • Policy Economics: Applying theories to solve problems or meet economic goals.

Positive or Normative Examples

  • Examples:
    1. Positive: The rising price of crude oil on world markets will lead to an increase in gas prices.
    2. Positive: A rise in average temperatures will likely increase the demand for sunscreen products.
    3. Normative: Pollution is the most serious economic problem.
    4. Normative: The government should ban smoking in public places.
    5. Normative: Unemployment is more harmful than inflation.

Understanding Normative and Positive Statements

  • The goal is to differentiate between normative and positive statements.

5 Key Economic Assumptions

  • Key Assumptions:
    1. Unlimited wants and limited resources (scarcity).
    2. Choices must be made due to scarcity, resulting in trade-offs.
    3. Everyone aims to maximize their satisfaction (self-interest).
    4. Decisions are made by comparing marginal costs and benefits.
    5. Real-life situations can be explained using simplified models and graphs.

Economic Terminology

  • Utility = Satisfaction
  • Marginal = Additional
  • Allocate = Distribute

Price vs. Cost

  • Price: Amount buyer pays.
  • Cost: Amount seller pays to produce a good.
  • Investment: Spending by businesses to improve production (e.g., a new factory).
  • Consumer Goods: For direct consumption (e.g., pizza).
  • Capital Goods: Used to make consumer goods (e.g., oven, blenders).

The 4 Factors of Production

  • Land: Natural resources (e.g., water, sun, plants, animals).
  • Labor: Effort a person devotes to a task for payment (e.g., manual laborers, lawyers).
  • Capital:
    • Physical Capital: Human-made resources (e.g., tools, machinery).
    • Human Capital: Skills/knowledge gained through education and experience.
  • Entrepreneurship: Leaders combining factors to create goods/services (e.g., Henry Ford, Bill Gates).
    1. Take Initiative
    2. Innovate
    3. Act as the Risk Bearers
      • Profit = Revenue - Costs

Productivity

  • Productivity = Outputs per unit of input.
  • Example: Bob makes 10 pizzas/hour, Stan makes 5 pizzas/hour. Bob is more productive.
  • Businesses/countries want to improve productivity because greater output can be achieved with fewer resources.

Extended Learning

  • Exploration of economics through various media and articles.

Review

  1. Define scarcity.
  2. Define Economics.
  3. Identify the relationship between scarcity and choices.
  4. Explain how Macroeconomics is different than Micro.
  5. Explain the difference between positive and normative economics.
  6. Identify the 5 main assumptions of Economics.
  7. Give an example of marginal analysis.