Economics

Demand Schedule - Types of Demand Schedule

len Alfred Ajibola - Fri, 03rd January, 2020 @ 2:16 PM

Topics in Economics

Advantages of Inflation Disadvantages of Inflation Concept of Inflation in Economics Scheme of work for Economics, SS1, First Term Scheme of work for Economics, SS1, Second Term Scheme of Work for Economics, SS1, Third Term Functions of the Wholesaler Advantages and Disadvantages of the Wholesaler Wholesale Market: Who is a Wholesaler? Characteristics of the Wholesaler Retail Market: Who is a Retailer and Examples of Retailers Market: Types of Market Market - What is a Market in Economics? Elasticity of Supply: Types of Supply Elasticity Supply Elasticity: Elasticity of Supply explained Demand Schedule - Types of Demand Schedule Demand: What is Demand? Law of Demand Concept and Types of Cost Supply, Supply Curve and Law of Supply What is a Black Market, Its advantages and disadvantages


Academic Questions in Economics

Please check out our Test Your Knowledge page to see all Questions and Answers

Concerning demand curve, which of the following statement is incorrect?

  • A. It is a graphical represention of a table showing the price of commodities and quantity demanded

  • B. It can be an individual demand curve

  • C. The x-axis shows the price of commodities

  • D. The price and quantity demanded are expressed on different axis of the graph

  • E. It can be a market demand curve

  • F. All the options are correct

A table that shows the price of a commodity and the quantity demanded is termed _____.

  • A. Price table

  • B. Demand table

  • C. Demanded-price table

  • D. Demand preference table

  • E. Demand graph

  • F. Demand schedule

The concept of  Ceteris Paribus Assumption in economics states that _____.

  • A. Supply and Demand are antagonistic

  • B. When given two choice of similar products with the same price (assuming all other factors are constant), you will prefer to buy that with a lower price

  • C. Supply and Demand are agonistic

  • D. When given two choice of dissimilar products with the same price (assuming all other factors are constant), you will prefer to buy that which you need most

  • E. When given two choice of similar products with the different prices (assuming all other factors are constant), you will prefer to buy that with a lower price

  • F. When given two choice of dissimilar products with the different prices (assuming all other factors are constant), you will prefer to buy that with a lower price

The willingness of a person to buy a specific quantity of goods or services at a given price and time is termed _____.

  • A. Scale of preference

  • B. Economies of scale

  • C. Opportunity Cost

  • D. Cost

  • E. Supply

  • F. Demand

Costs generally treated as expenses in business are termed _____.

  • A. Fixed cost

  • B. Variable cost

  • C. Sunk cost

  • D. Direct cost

  • E. Private cost

  • F. Outlay cost

When an entrepreneur pays cash (money) for materials needed for production, such money is termed as an _____ cost.

  • A. Accounting

  • B. Entrepreneurship

  • C. Economic

  • D. Outlay

  • E. Opportunity

  • F. Incremental

A government mandated maximum price for goods or services is termed _____.

  • A. Price height

  • B. Price maxima

  • C. Price ceiling

  • D. Price level

  • E. Price finale

  • F. Price top-zone

The quantity of supplied services or goods will increase as the price increases and they will decrease as the price decreases provided all other factors remain constant.

The above statement is attributed to the _____.

  • A. Law of price increase and price decrease

  • B. Law of product quantity

  • C. Law of demand

  • D. Law of supply

  • E. Law of quantity demanded and supplied in relation to price

  • F. Law of purchases on services and goods

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Demand Schedule:

Demand schedule is a table that shows the relationship between the prices and quantities of commodity demanded.

This table shows the exact number (quantity) of goods or services that will be bought at each price. An understanding on the concept of demand will prove useful on this topic.

Please read on demand: what is demand? and law of demand here.


Types of Demand Schedule

Demand Schedule are of 2 types. These are:


1. Individual Demand Schedule

The individual demand schedule is a table that shows the demand of a commodity that an individual (consumer) purchased at various prices, and at a particular time.

The table below shows an Individual Demand Schedule:

Price in Naira (of a tuber of yam)

Quantity demanded (per week)

500

5

400

10

300

15

200

20

100

25


Notice that when the price of yam was 500 Naira, the consumer demanded 5 quantities; and when the price was 100 Naira, 25 tubers of yam were demanded.

A graphical representation that shows an individual demand schedule is termed Individual Demand Curve.

You can read on supply, supply curve and law of supply here.


The graph below shows an Individual Demand Curve:
Individual Demand Curve - Len Academy


On the Individual Demand Curve, the quantity demanded is represented on the horizontal x-axis while the price of the commodity is represented on the vertical y-axis.

Please read on the Types of Line in Mathematics here.

 

2. Market demand schedule

The market demand schedule is also referred to as an aggregate demand schedule or total demand schedule or composite demand schedule.

This is a table that shows the different commodities purchased by all the consumers or customers in the market.

The market demand schedule is the summation (or addition) of the individual demand schedules.

It shows the demand of different customers for a commodity at a particular price.

You can read on scale of preference and opportunity cost here.

Below is a table that shows the Market Demand Schedule:

Unit price of commodity (Naira)

Quantity demanded by consumer A (QA)

Quantity demanded by consumer A (QB)

Market demand (QA +  QB)

50

20

15

35

40

40

30

70

30

60

45

105

20

80

60

140

10

100

75

175


Notice that when the unit price of the commodity was 50 Naira, consumer A demanded 20 quantities while consumer B demanded 15 quantities.

The market demand is the summation of quantity demanded by consumer A and consumer B; and it had a value of 35, that is: 20 + 15 from the quantities demanded by consumers A and B at 50 Naira.

You can read on consumer right and protection here.

Please read on bank notes and coins as methods of payments here.


The graph below shows the market demand schedule:
Market Demand Schedule - Len Academy


You will observe from the above market demand curve (graph) that the market demand for the product (book) is the sum of Joan's Individual Demand (3) and Edwards Individual Demand (1). The summation of both individual demand gives us a value of 4 and that's the market demand. To this end, the value of 4 is plotted as the quantity demanded (at the horizontal x-axis) against price (at a value of 20) in the vertical y-axis as displayed in the 3rd market demand curve.

Note: Market/Aggregate/Total/Composite Demand Curve is a graphical representation that shows the Market demand schedule.

You can read the graphical representation of supply curve here.

The x-axis of this graph shows the market demand of a commodity while the y-axis shows the price of the commodity.

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Alfred Ajibola is a Medical Biochemist, a passionate Academician with over 7 years of experience, a Versatile Writer, a Web Developer, a Cisco Certified Network Associate and a Cisco CyberOps Associate.


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Amazing facts in Economics


NOTABLE POINTS IN Economics

A Black market is said to take place when there is illegal buying and selling of goods and services.

Black markets usually take place outside the government's rader and without government's knowledge so as to avoid tax or any other government regulations.

Black market presents the avenue for government prohibited goods like hard drugs, war weapons and firearms to be bought by criminals.

A black market can also occur on the web for cyber criminals or those who are involved in computer hacking. To achieve their malicious aim, these individuals will go into the dark web and purchase or rent their respective hacking tools for a fee. Normally, payments are made in crypto currencies.

However, a black market isn't generally considered as bad. Infact, it has its advantages and disadvantages.

Please read more on black market here

Below are some advantages of black market:

  • Goods and services are sold at a cheaper price.

  • It helps some people make plenty of money.

  • The illegal sales of human organs, for example, the sale of human kidneys have aided in saving some lives.

  • Some people actually depend on black market for their daily bread.

  • Some of the proceeds from black market may been utilized towards the economic growth of a Nation. For instance, schools and hospitals had been from money made from black market.

The law of supply states that:

The quantity of the supplied services or goods will increase as the price increases and they will decrease as the price decreases provided all other factors remain constant.

These constant factors are very important when stating the supply law. They include:

  • The price of Input resources

  • The kind of technology used during production

  • The number of suppliers

  • The number of buyers; and so on.

 

A graph that shows the relationship between the price of a product or service, and its quantity supplied is the supply curve.

Supply curve can be defined as a graphical representation of the direct relationship between the prices of goods and services and the quantity supplied (of such goods and services) within a particular period of time provided all other factors remain constant.

Len Academy - Supply CurvePlease read more on the law of supply and supply curve here

Consider the table below:

Needs / Wants

Cost (Naira)

 Phone

 50,000

 Console Game

 120,000

 Laptop

 80,000

 Ipad

 100,000

 Smart watch

 85,000

 Ipod

 40,000

The above table shows us what a scale of preference would look like.

A scale of preference can be defined as the list of a person's needs or wants written in an order of importance.

You will observe that the person puts his most important needs or wants at the top of the list. Further down the list are his less important needs.

Now, let's imagine that this individual has 170,000 Naira to spend. According to the above scale of preference, the followings can be deduced;

  • A phone will be considered to be the most important; and it costs 50,000. He buys the phone.

  • A console game according to this person is next in importance; and it costs 120,000. He buys the console game.

Another question worth asking is:

  • What happens to his other needs?

This is where the term 'Opportinity Cost comes into play.

Please read more on scale of preference and opportunity cost here.

Scale of Preference can be defined as the list of a person's needs or wants written in an order of importance. 📜✍️

When you have a limited amount of money and could only buy some of the items on your list (the top items on the list); then the remaining items that you didn't buy will be generally considered as your opportunity cost.

Opportunity cost can be defined as the value of the best alternative that a person could have achieved or bought but couldn't achieve after the best choice had been achieved.

Opportunity cost are of two types. They are:

  1. Explicit Opportunity Cost
  2. Implicit Opportunity Cost

Please read on scale of Preference, Opportunity cost and the types of Opportunity cost here