Economics Demand and Supply Quiz

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Questions and Answers

What happens to the demand curve when there is an increase in income?

  • It shifts leftward.
  • It remains unchanged.
  • It shifts rightward. (correct)
  • It becomes vertical.

How does an increase in the price of a substitute good affect the demand for another good?

  • Has no effect on the demand.
  • Increases the demand for the other good. (correct)
  • Causes the demand to become elastic.
  • Decreases the demand for the other good.

What is the expected effect on equilibrium quantity when the price of a complement decreases?

  • Increase. (correct)
  • Decrease.
  • Remain unchanged.
  • Become indeterminate.

What occurs in the supply curve when there is an increase in resource prices?

<p>It shifts leftward. (A)</p> Signup and view all the answers

How does improved technology affect the supply curve?

<p>It shifts the supply curve rightward. (D)</p> Signup and view all the answers

When the number of suppliers decreases, what is the impact on the equilibrium price?

<p>It increases. (C)</p> Signup and view all the answers

What is the effect of an expected price decrease on supply?

<p>It increases supply. (D)</p> Signup and view all the answers

What direction does the demand curve shift when there is a decrease in the number of consumers?

<p>It shifts leftward. (D)</p> Signup and view all the answers

What occurs when the price is set above Br.10/kg?

<p>Excess supply occurs. (C)</p> Signup and view all the answers

How does an increase in demand while supply remains constant affect the equilibrium?

<p>Equilibrium price rises and quantity increases. (C)</p> Signup and view all the answers

What is the result of a decrease in supply while demand stays constant?

<p>Price increases and quantity decreases. (A)</p> Signup and view all the answers

Which factor does NOT typically change demand?

<p>Changes in resource prices. (D)</p> Signup and view all the answers

What happens to equilibrium if both demand increases and supply decreases?

<p>Equilibrium price and quantity both increase. (C)</p> Signup and view all the answers

What does utility represent in consumer behavior?

<p>The level of satisfaction derived from a commodity (C)</p> Signup and view all the answers

How does the relativity of utility affect consumer choices?

<p>The same commodity can provide different levels of utility to different consumers. (D)</p> Signup and view all the answers

What is the law of diminishing marginal utility?

<p>Each additional unit consumed provides less additional satisfaction. (D)</p> Signup and view all the answers

Which statement best describes the cardinal utility theory?

<p>Utility can be measured in numerical values based on satisfaction. (A)</p> Signup and view all the answers

What does the consumer maximization problem entail?

<p>Maximizing utility within given budget constraints. (A)</p> Signup and view all the answers

What assumption is made in ordinal utility theory?

<p>Consumers rank their preferences without expressing how much more they prefer one over another. (A)</p> Signup and view all the answers

Why might the utility of a product vary in different temporal contexts?

<p>Environmental factors can alter the perceived satisfaction. (B)</p> Signup and view all the answers

What is one impact of consumer income on utility derived from goods?

<p>Income allows consumers to access more goods, potentially increasing satisfaction. (A)</p> Signup and view all the answers

What defines a market?

<p>A system for exchanging goods and services (C)</p> Signup and view all the answers

At equilibrium, what occurs between the market demand and supply curves?

<p>They intersect (C)</p> Signup and view all the answers

Which statement about the law of demand is correct?

<p>There is an inverse relationship between price and quantity demanded. (B)</p> Signup and view all the answers

Which of these is true regarding price elasticity of demand?

<p>The value is usually negative. (C)</p> Signup and view all the answers

Which factor does NOT determine demand?

<p>Technology and production methods (A)</p> Signup and view all the answers

If the demand for good Z increases when the price of good Y decreases, what are goods Z and Y classified as?

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

If the cross elasticity of demand between two goods is 0, what does this indicate?

<p>They are unrelated goods. (D)</p> Signup and view all the answers

Which statement regarding income elasticity of demand is correct?

<p>A positive income elasticity indicates a normal good. (B)</p> Signup and view all the answers

What is the primary focus of the Theory of Consumer Behaviour?

<p>Understanding consumer preferences and utility (D)</p> Signup and view all the answers

Which theory explains the concept of utility in a measurable way?

<p>Cardinal Utility Theory (D)</p> Signup and view all the answers

What does market equilibrium refer to?

<p>The point where demand and supply curves intersect (B)</p> Signup and view all the answers

Which type of market structure is characterized by many sellers and free entry and exit?

<p>Perfectly Competitive Market (A)</p> Signup and view all the answers

What does the Theory of Cost address?

<p>The relationship between production inputs and outputs (A)</p> Signup and view all the answers

Which aspect of banking does the introduction to financial intermediary focus on?

<p>Role of banks in facilitating transactions between savers and borrowers (A)</p> Signup and view all the answers

Elasticities of demand primarily measure what?

<p>How quantity demanded responds to price changes (A)</p> Signup and view all the answers

The term 'monopolistically competitive market' refers to what?

<p>A market structure with hundreds of sellers and differentiated products (C)</p> Signup and view all the answers

What is one key characteristic of electronic banking?

<p>Offers 24/7 access to banking services (B)</p> Signup and view all the answers

Which of the following variables is NOT typically reviewed in macroeconomic analysis?

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

What happens to marginal product of labor (MPL) in Stage I of production?

<p>MPL continues to rise. (A)</p> Signup and view all the answers

In which stage does the total product (TP) start to decline?

<p>Stage III. (A)</p> Signup and view all the answers

When does the average product of labor (APL) reach its maximum value?

<p>When MPL is equal to APL. (D)</p> Signup and view all the answers

What characterizes Stage II of production?

<p>MPL is positive but decreasing. (A)</p> Signup and view all the answers

Which statement correctly describes the relationship between MPL and APL?

<p>MPL is always above APL when APL is rising. (A)</p> Signup and view all the answers

What occurs when APL is falling?

<p>MPL is less than APL. (A)</p> Signup and view all the answers

What is the implication of MPL becoming negative?

<p>Total product starts to decline. (D)</p> Signup and view all the answers

What does average revenue (AR) refer to?

<p>Total revenue divided by the number of units sold. (B)</p> Signup and view all the answers

Flashcards

Utility

The satisfaction or happiness a consumer derives from consuming a good or service.

Cardinal Utility Theory

A theory that assumes consumer utility can be measured numerically and that consumers aim to maximize their total utility.

Consumer Maximization Problem

Consumers strive to allocate their budget among goods and services to achieve the highest possible total utility.

Ordinal Utility Theory

A theory that focuses on how consumers rank their preferences without needing to assign numerical values to utility.

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Theory of Demand

The relationship between the price of a good and the quantity demanded by consumers.

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Theory of Supply

The relationship between the price of a good and the quantity supplied by producers.

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Market Equilibrium

The point where the quantity supplied of a good equals the quantity demanded, resulting in a stable price.

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Elasticities of Demand and Supply

A measure of the responsiveness of the quantity demanded or supplied to changes in price.

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Theory of Production

The process that transforms inputs into outputs.

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Theory of Cost

The costs incurred by producers in producing goods or services.

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What is market equilibrium?

The point where the quantity of a good supplied by producers matches the quantity demanded by consumers, resulting in a stable price.

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What happens when prices are above equilibrium?

When the price of a good is above the equilibrium price, the quantity supplied exceeds the quantity demanded, leading to a surplus of goods.

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What happens when prices are below equilibrium?

When the price of a good is below the equilibrium price, the quantity demanded exceeds the quantity supplied, resulting in a shortage of goods.

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What factors can affect demand?

Factors like changes in consumer preferences, income levels, or prices of related goods can cause demand to increase or decrease.

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What factors can affect supply?

Changes in resource prices, technological advancements, or government policies can cause supply to increase or decrease.

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Relativity of Utility

The idea that the value of a good or service is different for each person based on their needs and preferences.

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Marginal Utility

The usefulness or satisfaction that is derived from consuming extra units of a good or service.

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Law of Diminishing Marginal Utility

The principle stating that, as a person consumes more units of a good or service, the additional satisfaction (marginal utility) derived from each extra unit decreases.

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Consumer Optimum

The point where a consumer's budget is allocated across different goods and services to maximize their satisfaction.

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Increase in consumer income

If consumers have more money to spend (higher income), they'll likely purchase more of a good or service, shifting the demand curve to the right. This leads to a higher equilibrium price and quantity.

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Increase in substitute price

When the price of a substitute good goes up, people will choose to buy more of the good in question, shifting the demand curve to the right. This leads to a higher equilibrium price and quantity.

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Increase in complement price

When the price of a complementary good goes up, people will buy less of the good in question, shifting the demand curve to the left. This leads to a lower equilibrium price and quantity.

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Increase in resource price

When businesses have to pay more for resources like labor or raw materials, it costs more to produce goods, reducing the supply. The supply curve shifts to the left, leading to a higher equilibrium price and a lower equilibrium quantity.

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Improved technology

A technological advancement makes production more efficient, allowing businesses to produce more goods at a lower cost. This increases the supply, shifting the supply curve to the right, leading to a lower equilibrium price and a higher equilibrium quantity.

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Expectation of price increase

If producers expect prices to rise in the future, they may choose to decrease supply now, holding back goods to sell later at a higher price. This shifts the supply curve to the left, leading to a higher equilibrium price and a lower equilibrium quantity.

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Increase in number of suppliers

When more firms enter the market, the supply of the good increases, shifting the supply curve to the right. This leads to a lower equilibrium price and a higher equilibrium quantity.

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Decrease in number of suppliers

A decrease in the number of suppliers in a market means there's less supply, shifting the supply curve to the left. This leads to a higher equilibrium price and a lower equilibrium quantity.

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What is a market?

A place where buyers and sellers meet to exchange goods and services.

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What is the Law of Demand?

The relationship between the price of a good and the quantity demanded by consumers. It shows how much consumers are willing and able to buy at different prices.

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What is the Law of Supply?

The relationship between the price of a good and the quantity supplied by producers. It shows how much producers are willing and able to sell at different prices.

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What are complementary goods?

Goods that are used together. If the price of one good goes up, the demand for the other good goes down.

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What are substitute goods?

Goods that can be used in place of each other. If the price of one good goes up, the demand for the other good goes up.

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What is price elasticity of demand?

A measure of how responsive the quantity demanded is to changes in price. It tells us how much the quantity demanded changes for every 1% change in price.

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What is income elasticity of demand?

A measure of how responsive the quantity demanded is to changes in income. It tells us how much the quantity demanded changes for every 1% change in income.

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Diminishing Returns Stage

This stage of production occurs when adding more variable inputs leads to an increase in total product (TP), but at a decreasing rate. Marginal product (MP) remains positive, but decreasing.

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Negative Returns Stage

In this stage, each additional unit of variable input (like labor) results in a decrease in total product (TP). This occurs because adding more inputs leads to negative marginal product (MP).

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Relationship between TP, MPL, & APL

The relationship between the total product (TP), marginal product (MPL), and average product (APL) is crucial in understanding the different stages of production.

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MPL and TP Relationship 1

MPL is increasing when TP is increasing at an increasing rate.

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MPL and TP Relationship 2

MPL starts to fall but remains positive when TP is increasing at a decreasing rate.

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MPL and TP Relationship 3

MPL reaches zero when TP is at its maximum.

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MPL and TP Relationship 4

MPL becomes negative when TP is falling.

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MPL and APL Relationship

The MPL curve reaches its maximum before the APL curve, and when APL is rising, MPL is above it; when APL is falling, MPL is below it.

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Study Notes

Economics Textbook for Grade 10, Ethiopia

  • The textbook is a property of the school and should be handled with care.
  • Cover the book with protective material (plastic, newspapers, magazines).
  • Keep the book in a clean, dry place.
  • Keep hands clean when handling the book.
  • Do not write on the cover or inside pages.
  • Use paper or cardboard as bookmarks.
  • Never tear or cut out pictures or pages.
  • Repair torn pages with paste or tape.
  • Pack the book carefully in your school bag.
  • Handle the book with care when giving it to another person.
  • When using a new book, lay it flat and open a few pages at a time.

Economics Textbook Authors and Editors

  • Writers: Achalu Berecha Dhaba (MA, MSc), Leta Sera Bedada (PhD)
  • Editors: Mesfin Ketema (MSc), Enguday Ademe Mekonnen (PhD), Birhanu Engidaw Getahun (PhD)
  • Illustrator: Endalkachew Mengesha Yasab (MSc)
  • Designer: Derejaw Lake Melie (MSc)
  • Evaluators: Mekonnen Bersisa Gadisa (PhD), Tariku Mulushewa Dessea (MSc), Ararssa Hora Dabi (MSc)

Economics Textbook Content and Structure

  • The textbook is intended for Grade 10 students in Ethiopia.

  • The content builds on knowledge from previous grades.

  • There are eight units in the book.

    The contents cover

  • The theory of consumer behavior (utility, utility calculation, and law of diminishing marginal utility)

  • Theories of demand and supply (elasticity & equilibrium)

  • Theory of production and cost

  • Market structures(perfectly competitive, monopoly, monopolistically competitive, and oligopoly)

  • Banking and finance

  • Economic growth

  • The Ethiopian economy

  • Business startups and innovation

  • Each unit also has objectives, key concepts, and startup activities, tables, and examples.

  • Additional references are listed at the end of the book.

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