AREC 323 Lecture 1: Economic Concepts Review

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Questions and Answers

According to the law of supply, how does an increase in price typically affect the quantity supplied?

  • Quantity supplied increases. (correct)
  • Quantity supplied remains unchanged.
  • Quantity supplied decreases.
  • Quantity supplied initially increases then decreases.

What does the concept of demand refer to?

  • The quantity of product consumers are willing and able to purchase at a given time and price (correct)
  • The quantity of goods or services producers are willing to supply
  • The total amount of product available in the market
  • The price at which goods and services are sold.

According to the law of demand, what is the relationship between price and quantity demanded?

  • An inverse relationship, where the two move in opposite directions. (correct)
  • A relationship dependent on the income of the consumer.
  • No relationship, there is no clear pattern between price and quantity demanded.
  • A direct relationship, where both move in the same direction.

What does 'own-price elasticity of demand' measure?

<p>How much the quantity demanded of a good responds to a change in its price. (A)</p> Signup and view all the answers

When demand is considered 'elastic', how does the quantity demanded typically respond to price changes?

<p>Quantity demanded changes significantly more than the percentage change in price. (D)</p> Signup and view all the answers

Which factor is NOT listed as a key influence on the price elasticity of demand?

<p>The size of the producing company. (B)</p> Signup and view all the answers

What does price elasticity of supply measure?

<p>How much the quantity supplied of a good responds to a change in its price. (B)</p> Signup and view all the answers

Which term does $\frac{\Delta Q}{\Delta P} \times \frac{P}{Q}$ represent?

<p>Original Point Elasticity (D)</p> Signup and view all the answers

Which of the following best describes the relationship between price and quantity supplied, according to the law of supply?

<p>A positive relationship; as price increases, quantity supplied increases. (A)</p> Signup and view all the answers

What is the relationship between price and quantity demanded, according to the law of demand?

<p>An inverse relationship; as price decreases, quantity demanded increases. (C)</p> Signup and view all the answers

What does it mean if the absolute value of the price elasticity of demand is greater than 1?

<p>Demand is elastic. (C)</p> Signup and view all the answers

If the price elasticity of supply (PES) is positive, what does this indicate?

<p>An increase in price leads to an increase in the quantity supplied. (A)</p> Signup and view all the answers

Which factor is the MOST significant determinant of price elasticity of supply?

<p>The availability of inputs for production. (C)</p> Signup and view all the answers

Which of the following is NOT a key factor influencing own-price elasticity of demand?

<p>Production cost. (C)</p> Signup and view all the answers

What does the term 'arc elasticity' refer to?

<p>Elasticity measured over a range of prices and quantities. (B)</p> Signup and view all the answers

Which of the following would likely have the LEAST elastic demand?

<p>Insulin for a diabetic. (D)</p> Signup and view all the answers

What is indicated by $ rac{\Delta Q}{\Delta P} imes rac{P}{Q}$?

<p>Own-price elasticity of demand (point elasticity). (A)</p> Signup and view all the answers

In the short run, the price elasticity of supply is typically:

<p>Less elastic than in the long run. (B)</p> Signup and view all the answers

Which of the following best describes the relationship between the price elasticity of demand (PED) and the law of demand?

<p>PED measures the responsiveness of quantity demanded to price changes, as described by the law of demand. (A)</p> Signup and view all the answers

Which scenario would MOST likely result in a more elastic price elasticity of demand?

<p>A good with many available substitutes. (B)</p> Signup and view all the answers

When calculating price elasticity using the 'arc elasticity' method, what does using average price and average quantity aim to achieve?

<p>To provide a midpoint estimate of elasticity over a range of prices and quantities. (A)</p> Signup and view all the answers

If the price of a good increases, and the quantity supplied also increases, this reflects:

<p>The law of supply. (D)</p> Signup and view all the answers

Which of the following is LEAST likely to influence the price elasticity of supply (PES)?

<p>The consumers level of income. (C)</p> Signup and view all the answers

What is the primary difference between 'original price and quantity' and 'arc elasticity' methods when analyzing elasticity?

<p>The 'original price and quantity' uses a single point and arc elasticity uses a multiple points. (D)</p> Signup and view all the answers

What does it mean if a product's price elasticity of demand (PED) is equal to zero?

<p>The quantity demanded will not change when the price changes. (A)</p> Signup and view all the answers

If the time horizon increases, how does this generally affect the price elasticity of supply (PES)?

<p>PES becomes more elastic. (A)</p> Signup and view all the answers

What is the effect on demand when the price of a complementary product increases?

<p>The demand will decrease. (B)</p> Signup and view all the answers

Which of the following is NOT a valid determinant of price elasticity of demand?

<p>The production cost. (B)</p> Signup and view all the answers

What is the primary process that defines a business?

<p>Taking inputs and adding value. (A)</p> Signup and view all the answers

Which of the following is NOT considered a fundamental requirement for a business?

<p>Philanthropic goals. (C)</p> Signup and view all the answers

In the context of business, what does 'utility' refer to?

<p>Satisfaction from consuming a product or service. (B)</p> Signup and view all the answers

Which of the following best describes a business 'opportunity'?

<p>A situation suitable to introduce a new product to gain profit . (A)</p> Signup and view all the answers

According to the business process web, what is transformed in the process?

<p>Inputs to outputs. (D)</p> Signup and view all the answers

What is the role of 'feedback' in a business's operational system?

<p>To provide information for system adjustment. (C)</p> Signup and view all the answers

Which of the following refers to activities that enhance the perceived value of a product?

<p>Add form, time, place, or possession utility. (D)</p> Signup and view all the answers

Which management activity involves setting goals and short-term strategies for a business?

<p>Planning (A)</p> Signup and view all the answers

Which of these is the best description of the 'controlling' function of management?

<p>Monitoring and evaluating performance (C)</p> Signup and view all the answers

A manager's role in 'organizing' primarily involves:

<p>Grouping activities and resources (C)</p> Signup and view all the answers

What does a manager's 'technical' skill refer to?

<p>Proficiency in a specialized field (A)</p> Signup and view all the answers

Which managerial skill involves working well with others, both individually and in teams?

<p>Human (D)</p> Signup and view all the answers

What is the primary focus of 'conceptual' management skills?

<p>Understanding abstract situations (B)</p> Signup and view all the answers

Besides just profits what else should a company consider, when defining their goals?

<p>Sales, and other similar metrics (A)</p> Signup and view all the answers

Which term best describes a situation where a business is getting the most output from the least amount of inputs?

<p>Efficiency (D)</p> Signup and view all the answers

What is generally meant, when someone says 'value' within the context of a business?

<p>The relative worth, utility, or importance of something to a customer, or other stakeholder within the context. (A)</p> Signup and view all the answers

Which of the following is NOT a core function of management?

<p>Ignoring conflict (B)</p> Signup and view all the answers

What is the primary focus of the 'controlling' function in management?

<p>Monitoring and adjusting activities towards goals (C)</p> Signup and view all the answers

Which management function is MOST concerned with motivating employees?

<p>Leading (B)</p> Signup and view all the answers

If a business is looking to increase its competitiveness by making it difficult for new companies to enter the market, which strategy are they using?

<p>Increasing the barrier to entry (A)</p> Signup and view all the answers

What is the objective of a company engaging in a merger or an acquisition?

<p>Consolidation of firms (C)</p> Signup and view all the answers

What is a key implication of a company increasing barriers to entry in a market?

<p>Higher prices (A)</p> Signup and view all the answers

Which of the following would be a strategic management decision for a new ice cream shack on a beach?

<p>Selecting the shack's location (B)</p> Signup and view all the answers

Which of the following is NOT a listed benefit of good management?

<p>Guaranteed innovation (D)</p> Signup and view all the answers

What does 'cross-licensing' primarily involve for firms?

<p>Sharing patents or proprietary information (D)</p> Signup and view all the answers

Flashcards

Supply

The quantity of a good or service that producers are willing and able to offer for sale at various prices during a specific period.

Demand

The quantity of a good or service that consumers are willing and able to purchase at various prices during a specific period.

Law of Supply

A positive relationship between price and quantity supplied. As price increases, the quantity supplied increases, and vice versa.

Law of Demand

An inverse relationship between price and quantity demanded. As price decreases, the quantity demanded increases, and vice versa.

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Price Elasticity of Demand (PED)

Measures how much the quantity demanded of a good responds to a change in its price. Price elasticity of demand is often negative due to the inverse relationship between price and quantity demanded.

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Price Elasticity of Supply (PES)

Measures how much the quantity supplied of a good responds to a change in its price. Price elasticity of supply is positive due to the direct relationship between price and quantity supplied.

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Factors Affecting PED

Factors influencing price elasticity of demand. Examples include availability of substitutes, luxury vs necessity, proportion of income spent, time horizon, and market definition.

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Factors Affecting PES

Factors influencing price elasticity of supply. Examples include time frame, availability of inputs, and flexibility of production.

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Elastic Demand

It indicates if consumers are highly sensitive to price changes. If PED > 1, demand is elastic. If PED < 1, demand is inelastic.

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Inelastic Demand

It indicates if consumers are not highly sensitive to price changes. If PED < 1, demand is inelastic.

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Complementary Good

A good whose demand increases when the price of another good increases. Think of peanut butter and jelly.

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Substitute Good

A good whose demand decreases when the price of another good decreases. Think of coffee and tea.

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Total Cost (TC)

The sum of fixed cost and variable cost.

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Total Revenue (TR)

The total revenue received from selling a given quantity of goods. TR = Price x Quantity.

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Average Cost (AC)

The sum of fixed costs and variable costs divided by the quantity of output produced. It represents the average cost per unit of output.

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Marginal Cost (MC)

The change in total cost resulting from producing one additional unit of output. It represents the marginal cost of producing one more unit.

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Economic Profit

The profit calculated by subtracting the total cost from the total revenue. It reflects the true economic return from a business.

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Accounting Profit

The profit calculated by subtracting accounting costs from total revenue. It ignores implicit costs such as opportunity costs.

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What is a Business?

The process of taking inputs and adding value to them to create outputs, typically for profit.

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What is a Business (simplified)

A set of activities that involve commercial, industrial, or professional work with the goal of making profit.

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Utility

The satisfaction a consumer gets from using a product or service.

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Adding Value

Refers to increasing the value of a product or service through improvement in its form, time of availability, place of availability, or ease of possession.

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Business Opportunity

A favorable circumstance for a business to introduce a new product or service that addresses a specific demand or gap in the market.

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What makes a business successful?

The ability of a business to survive and thrive in the face of challenges and changes.

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What is Management?

The process of planning, organizing, leading, and controlling resources to achieve organizational goals.

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Planning in management

Setting goals and short-term strategies for the business.

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Organizing in management

Defining roles, responsibilities, and the organizational structure.

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Controlling in management

Monitoring and evaluating the performance of the organization.

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Leading in management

Influencing, motivating, and guiding employees to achieve goals.

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Technical skill

Knowledge of and proficiency in a specialized field.

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Human skill

The ability to work effectively with individuals and teams.

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Conceptual skill

The ability to think abstractly and conceptualize complex situations.

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Who is a manager?

Organizational members who direct and guide the work of others.

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Efficient Resource Utilization

Efficient resource utilization ensures that resources are used wisely to achieve organizational goals. This involves minimizing waste and maximizing productivity.

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Decision making

Decision-making involves choosing the best course of action from various alternatives. It's crucial for managers to make informed decisions based on available data and analysis.

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Motivation & leadership

Motivation and leadership involve inspiring and guiding employees towards achieving common goals. Effective leaders create a positive work environment, foster teamwork, and empower individuals to perform at their best.

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Conflict resolution

Conflict resolution involves effectively addressing and resolving disagreements or conflicts among individuals or groups within an organization. It aims to create a harmonious work environment.

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Risk management

Risk management involves identifying, assessing, and mitigating potential risks that can affect an organization's operations and goals. It helps to minimize potential losses and maximize opportunities.

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Effective communication

Effective communication involves clearly conveying information and ideas to others, both internally and externally. It's essential for building relationships, sharing knowledge, and achieving shared goals.

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Encourage innovation & creativity

Innovation and creativity refer to the ability of an organization to develop new products, processes, or ideas. It's essential for staying competitive and meeting changing market demands.

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Management Strategies to be competitive

Management strategies are actions firms take to outsmart competitors and gain a competitive advantage. These strategies aim to differentiate the firm, create barriers to entry, and influence market conditions.

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Study Notes

AREC 323 Lecture 1: Review of Economic Conceptions

  • Course name: AREC 323
  • Lecture topic: Review of Economic Concepts
  • Instructor: Jiaxun Li
  • Email: [email protected]

Outline

  • Supply and Demand
    • Definition, elasticity
    • Product characteristics (substitutes and complements)
  • Cost
    • TC, AC, MC
    • Derivative formulas
  • Revenue
    • TR, AR, MR
  • Profit
    • Economic profit
    • Accounting profit
  • Elasticity
    • Own-price elasticity of demand (PED)
    • Own-price elasticity of supply (PES)
    • Cross-price elasticity
  • Derivatives
    • Constant Rule
    • Power Rule

Supply and Demand

  • Supply
    • Definition: The quantity of a good or service producers are willing and able to offer for sale at various prices during a specific period.
    • Law of Supply: A positive relationship exists between price and quantity supplied. As price increases, the quantity supplied increases, and vice versa.
  • Demand
    • Definition: The quantity of a good or service consumers are willing and able to purchase at various prices during a specific period.
    • Law of Demand: An inverse relationship exists between price and quantity demanded. As price decreases, the quantity demanded increases, and vice versa.

Elasticity

  • Own-price elasticity of demand (PED): Measures how much quantity demanded of a good responds to a price change.
    • Price and quantity demanded are inversely related; PED is usually negative.
    • Key factors: Availability of substitutes, necessity vs. luxury goods, proportion of income spent, time horizon, and the degree of commodity aggregation.
  • Own-price elasticity of supply (PES): Measures how much quantity supplied of a good responds to a price change.
    • Price and quantity supplied are directly related; PES is usually positive.
    • Key factors: Time frame (short-run or long-run), availability of inputs, and flexibility of production.
    • Cross-price elasticity: Measures the percentage change in the quantity demanded of one good (product Y) in response to a 1% change in the price of another good (product X).
    • ηyx > 0: Goods X and Y are substitutes.
    • ηyx < 0: Goods X and Y are complements.

Elasticity: Formula for Own-Price Elasticity

  • Original price and quantity: η = ΔQ/Q₀ / ΔP/P₀
    • ΔQ = change in quantity
    • Q₀ = initial quantity
    • ΔP = change in price
    • P₀ = initial price
  • Arc elasticity: η = (Q₂ - Q₁)/(Q₂ + Q₁)/2 / (P₂ - P₁)/(P₂ + P₁)/2
    • Q₁ = initial quantity
    • Q₂ = new quantity
    • P₁ = initial price
    • P₂ = new price

Cost

  • Total Costs (TC): FC + VC
  • Fixed Costs (FC): Costs that do not vary with the level of production (e.g., rent, insurance).
  • Variable Costs (VC): Costs that vary directly with the level of production (e.g., raw materials, labor).
  • Average Fixed Costs (AFC): FC/Q
  • Average Costs (AC): TC/Q
  • Average Variable Costs (AVC): VC/Q
  • Marginal Costs (MC): The additional cost of producing one more unit of output. MC = dTC(Q) / dQ

Revenue

  • Total Revenue (TR): P(Q) × Q
  • Marginal Revenue (MR): MR = dTR(Q)/dQ = (TR(Q+ΔQ) - TR(Q))/ΔQ = P(1 - 1/|η|)

Profit

  • Profit = TR - TC
  • Factors affecting profit: Revenue (price levels, sales volume, market demand), costs (fixed and variable), market conditions (competition, regulations, economic trends), profit maximization (MR = MC).

Economic and Accounting Profits

  • Explicit costs: Direct monetary payments (e.g., wages, rent).
  • Implicit costs: Opportunity costs of using resources owned by the business (e.g., forgone salary).
  • Accounting profit: TR - explicit costs
  • Economic profit: TR - total costs (explicit and implicit).

Practice

  • Provided formulas and questions for calculating elasticity, cost, and profit. TC = 40 + 8q + 4q² and Demand P = 80 – 2q are given. Specifics include calculations for average cost, marginal cost, marginal revenue, profit maximizing output (q), and costs/revenue/profit at max profit.
  • Practice question about calculating elasticity given price and quantity information and determining the category.

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