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Economics-A-level-Aqa

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  1. 1-economic-methodology-and-the-economic-problem
    4 主题
  2. 2-individual-economic-decision-making
    4 主题
  3. 3-price-determination-in-competitive-markets
    10 主题
  4. 4-production-costs-and-revenue
    11 主题
  5. 5-perfect-and-imperfectly-competitive-markets-and-monopolies
    12 主题
  6. 6-the-labour-market
    7 主题
  7. 7-income-and-wealth-distribution
    4 主题
  8. 8-the-market-mechanism-market-failure-and-government-intervention
    16 主题
  9. 9-measuring-macroeconomic-performance
    5 主题
  10. 10-how-the-macroeconomy-works
    6 主题
  11. 11-economic-performance
    8 主题
  12. 12-financial-markets-and-monetary-policy
    6 主题
  13. 13-fiscal-and-supply-side-policies
    5 主题
  14. 14-the-international-economy
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The Purpose of Business Activity

  • The purpose of business activity is to produce goods or services that meet customer needs

  • This is accomplished through the process of production

    • The factors of production are combined in such a way so as to minimise the costs and maximise the sales revenue

    • Adding value is the process of taking inputs and combining them in such a way that customers find them useful and are willing to pay more for the end product than the value of the raw materials used to manufacture it

Diagram: The Production Process

Diagram of a business process with an ice cream shop illustrating raw materials, costs, added value, and revenue leading to profit or loss.

The purpose of business activity is to take inputs, add value to them, and create products which meet customer needs

 Diagram analysis

  • Raw materials and the other factors of production are used to produce goods and services

  • Different types of costs are incurred in production, and when the firm sells its products, they receive sales revenue

    • If the total costs incurred in the process are less than the sales revenue, the firm will make a profit

    • If the total costs incurred in the process are greater than the sales revenue, the firm will make a loss

Production

  • Production is the act of adding value to the factors of production (such as capital, and labour) to create the goods/services e.g. using tomatoes & basil to create a soup

    • It is the process of factor conversion of inputs into final product (goods/services)

    • It is a measure of output e.g. 3 cans of soup

  • Production is often influenced by the state of the economy

    • During a recession, production falls

    • During a boom period, production increases

  • As production is dependent on the demand for goods/services, any change to any of the conditions of demand will result in changes to production

  • As production is also dependent on the supply of the factors of production, any change to any of the conditions of supply will result in changes to production

Productivity

  • Productivity is a measure of efficiency that calculates the amount of outputs produced per unit of input

    • It calculates how efficiently resources are being used in the creation of goods/services & provides a metric for comparison

    • E.g Capital productivity is output per unit if capital 

  • Labour productivity is significant as it is output per worker 

    • It is a measure of efficiency e.g. 3 cans produced per worker 

    • E.g After training workers proved to be 27% more efficient in their labour productivity

  • Higher productivity is important for a firm & economy for the following reasons

    • It lowers costs & improves a firms national & international ability to compete

    • It allows firms to produce more output with the same input which puts it in a position to generate increased economies of scale

    • Firms can generate higher profits

    • Higher profits may mean that the firms can pay their workers more

    • Higher profits may mean that the government revenue from corporation tax will increase

    • An improved ability to compete in international markets will help to generate economic growth 

Worked Example

The table shows the number of pairs of luxury wool socks produced by Scotty Socks Ltd. in 2021 and 2022. 

Year

Units Produced

2021

46,000

2022

69,000

In 2021, Scotty Socks employed 50 staff. In 2022, the number of staff employed by the business increased by 20%.

Calculate the percentage change in labour productivity between 2021 and 2022. (4)
 

Step 1: Calculate the labour productivity for 2021

fraction numerator 46 comma 000 space units over denominator 50 space workers end fraction space space space space space equals 920 space units space per space worker (1 mark)

Step 2: Calculate the labour productivity for 2022

fraction numerator 69 comma 000 space units over denominator space 60 space workers end fraction space space space space space equals 1 comma 150 space units space per space worker (1 mark)

Step 3: Calculate the percentage difference between the two years ((new-old) / old)

<img alt=”begin mathsize 14px style fraction numerator space 1 comma 150 space minus space 920 space units over denominator 920 space units end fraction space space space cross times space space space space space 100 space space space equals space 25 space percent sign space space space space end style” data-mathml='<math style=”font-family:Arial” content-wrapper”>

Different Types of Interrelationships Between Markets

  • Markets do not operate in isolation. Interrelationships can exist between markets in several ways

The Interrelationships Between Markets 

Relationship
 

Explanation
 

Example 

Joint demand

  •  When consumers use two products together, also known as complementary goods

  • The change in price of one good impacts the demand for the other good 

  • Coffee and sugar

  • Cereal and milk

  • Smart phones and mobile apps 

Competitive demand

  • Two goods are used for the same purpose, also known as substitute goods

  • The change in price of one good impacts the demand for the other good 

  • Cinema tickets and online streaming services

  • Tea and coffee

  • E-books and printed books 

Composite demand

  • Two or more goods require the same input to make them

  • An increase in production of one good could lead to a decrease in supply of another good, as less of the input is available 

  • Cheese and yogurt require the same input (milk)

  • Growing crops or raising livestock requires the same input (land)

Derived demand

  • Demand for a good or service arises from the demand for another good or service 

    • The demand for inputs is derived from the demand for the final product

  • Aluminium and cars

  • Labour and goods & services 

Joint supply

  • The supply of two different goods stems from the same source

  • The increase in production of one good will increase the production of another good.

    • The second good may be a by-product of the first good

  • Beef and cow leather

  • Poultry meat and feathers 

  • Honey and beeswax

Analysing Interrelated Markets

1. Analysing markets in joint demand 

  • Changes to the price of one good shift the entire demand curve of a complementary good 

Diagram: Markets for Mobiles & Mobile Apps

Two graphs compare markets for mobiles and apps, showing demand curve shifts; the left graph indicates a contraction, the right a decrease in quantity.

Increases in price of mobile phones, shift the entire demand curve of mobile apps to the left

Diagram analysis

Market for mobiles

  • An increase in price for mobiles from P1→P2 leads to a movement up the demand curve

    • Due to the increase in price, there is a contraction in QD from Q1→Q2

Market for mobile apps

  • As a result of price increase for mobile phones, there will be an decrease in demand for mobile apps (the complementary good) as more consumers become buy less 

    • This causes a shift in demand from D1 to D2. The price remains unchanged at P1 but the demand has decreased from Q1→Q2 

2. Analysing markets in joint supply

  • As the production of beef increases, the supply of leather will increase (as it is a by-product of beef)

Diagram: Market for Beef & Leather

Two market graphs: beef shows demand increase, price rise P1 to P2, quantity Q1 to Q2; leather shows supply increase, price drop P1 to P2, quantity Q1 to Q2.

An increase in demand for beef increases the the supply of leather

Diagram analysis

Market for beef

  • If the real income of individuals of a country increase, there may be an increase in demand for beef (considered a normal good)

    • This causes a shift in demand from D1 → D2. The price has increased from P1 → P2  and the quantity has increased from Q1 → Q2

Market for leather 

  • When there is an increase of quantity of beef, there will be an increase in the supply of leather

    • This is a shift in supply from S1 to S2. The price decreased from P1 → P2  and the supply has increased from Q1 → Q2 

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