Economics

Supply, Supply Curve and Law of Supply

len Alfred Ajibola - Fri, 26th April, 2019 @ 20:38: 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

Pice elasticity of supply - Len Academy

The above diagram on the quantity supplied against a change in price is _____.

  • A. Elastic

  • B. Inelastic

  • C. Perfectly Elastic

  • D. Perfectly Inelastic

  • E. Zero Elastic

  • F. Unitary Elastic

The rate at which an increase in the price of a product translate into the product's increased production and availability in the market is termed _____.

  • A. Demand

  • B. Supply

  • C. Demand Elasticity

  • D. Supply Elasticity

  • E. Demand Curve

  • F. Supply Curve

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

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What is supply?

Supply can be defined as the amount or quantity of goods and services a producer or manufacturer or supplier intends to sell at a given time and period.

Consider the instance below:

A producer of rice may plan to sell a bag of rice for N10,000.

The quantity of rice sold by the producer over this period of time will depend on the price of his or her rice, in addition to other factors. Such additional factors may include:

  1. The quantity of rice in the market.
  2. The quality of his rice.
  3. The price substitute of rice.
  4. The demand of rice at that present moment and so on.

Please read on the Graphical Representation of Supply Curve here.

Note: Quantity supplied refers to the amount or number of goods supplied and services rendered.

 

Supply Curve

Supply Curve -Len Academy
Image Credit: Economics Help

Supply curve is the graph that shows the correlation between the amount or quantity of goods supplied and its price over a given period of time.

Please read on the Elasticity of Supply here.

In a supply curve, the quantity of goods supplied is always on the horizontal axis while the price is seen on the vertical axis.

Oftentimes, before we plot a supply curve (graph), we would have a table that contains the observable data showing a prior listings of the price and quantity of goods supplied. Such a table is known as the supply schedule.

Please read on Demand Schedule here.

When the price versus quantity supplied is plotted on a supply curve graph, we will notice an upward sloped graph from left to right. This upward and left to right movement of the supply curve validates the law of supply which states that:

The suppliers are willing to offer or sell more quantity of their goods at a higher price provided all other factors are kept constant.

Law of Supply

Please read on Demand and Law of Demand here.

Note: When other factors (not relating to price) that affect the quantity of goods supplied are present, the supply curve may shift to the right or left. Below are some instances:

  1. The availabiity of better seeds or a new pest resistant seed will increase the supply of crops from such seeds, hence; supply curve will shift to the right.
    Please read on the Types of Supply Elasticity here.
  2. Natural disasters like earthquakes and droughts will shift the supply curve to the left.
  3. You can read on Soil Erosion here.

  4. Increase in the price of a substitute crop will shift the supply curve to the right.
  5. If the price of a crop will increase in the future, the supply curve will shift to the left because manufacturers and producers will prefer to sell such crop in the future.
  6. An increase in labour will shift the supply curve to the left.
  7. Please read on Division of Labour here.

  8. Any technology that will boost the amount of crop produced or the number of services rendered will shift the supply curve to the right.
  9. You can read on the Internet of Things here.

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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