The four Business Sectors (HL IB Business Management)

Revision Note

The Different Business Sectors

  • Different businesses can be classified according to the type of sector in which they operate
  • Classification into these sectors is a simplified way of categorising industries as it helps to provide a means of making comparisons between firms in the same sector
  • However, this type of classification does not capture the full complexity and interconnectedness of the business world
    • Many businesses operate across multiple sectors or may not fit neatly into a single category
       

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All businesses operate in one of four sectors
 

  • There are four main sectors of industry in which a business can choose to operate
    • The primary sector is concerned with the extraction of raw materials from land, sea or air such as farming, mining or fishing

    • The secondary sector is concerned with the processing of raw materials such as oil refinement, and the manufacture of goods such as vehicles

    • The tertiary sector is concerned with the provision of a wide range services for consumers and other businesses such as leisure, banking or hospitality

    • The quaternary sector is concerned with the provision of knowledge-focused services, often related to IT technology, consultancy or research
       

The Chain of Production

  • The four sectors are linked in the chain of production which is the series of steps taken to turn raw materials into a finished product that can be marketed and sold

A product starts its life in the primary sector and moves through all four sectors

The chain of production in two different industries

The Impact of Sectoral Change on Business Activity

  • As economies grow and develop, many of the firms within that economy will change their sector of operation (sectoral change)
  • Generally speaking, their are successively higher levels of profits to be made in each subsequent sector
    • The reason for this is that each sector adds more value than the previous sector
    • Higher added value equates to higher profits
       

Less developed economies

  • A less developed economy will primarily be focused on the primary sector – with most people employed in agriculture and the production of food
    • There has been a global trend away from employment in primary sector industries over the last two decades
    • Only in the least developed nations is the proportion of the workforce employed in the primary sector consistently high
    • This is partly as a result of lower participation rates in education and a lack of infrastructure to support manufacturing or service provision 
        

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Employment in Agriculture in a Range of Economies since 1991

(Source: WorldBank)

Graph Analysis

  • From these countries, Malawi still retains the highest proportion of employment in the primary sector
  • China has seen a significant decrease in primary sector activity
  • Germany has had very low primary sector and will have likely been in manufacturing and services well before 1991 

Emerging Economies

  • In emerging economies improved technology enables less labour to be needed in the primary sector and more workers are incoved in manufacturing
    • The proportion of workers employed in manufacturing has risen over the last few decades
    • Many businesses have relocated production facilities to take advantage of the lower average wage rates in these economies
       
  • Emerging economies have experienced growth in the tertiary and quaternary sectors in recent years, with many businesses now focused on the provision of consumer services

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Employment in industry in a range of economies since 1991

(Source: WorldBank)

Graph Analysis

  • From these countries, China has the highest proportion of employment in the secondary sector
  • Ghana and India have seen significant increases in secondary sector activity
  • Brazil and Turkey's secondary sectors have remained relatively stable over the period 1991 to 2019

Developed economies

  • The most developed economies have a very high proportion of the workforce employed in the provision of services, increasing focused on the quaternary sector
    • Developed economies use their wealth to fund advanced education and higher-level skills training which further supports the growth of these industries
    • Some exceptions such as Australia (viticulture, or wine production) and Norway (forestry and oil extraction) continue to have significant primary sectors

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Employment in services in a range of economies since 1991

(Source: WorldBank

 Graph Analysis

  • The most developed countries have the highest proportion of their workforces employed in the service industry
  • Thailand's service sector employees twice the number of employees in 2019 as it employed in 1991
  • Around half of Ecuador's workforce is now employed in service delivery

Traditional & digital service economies

  • The traditional services sector consists of bricks and mortar shops which provided face to face customer services
    • This is in decline across much of the developed world

 

  • The development of the internet has provided a global platform for virtual storefronts which are increasingly able to provide many of the features of bricks and mortar stores
    • This has generated a digital service economy 
    • The digital service economy is becoming more pronounced with some businesses maintaining both an online and physical presence (E.g. clothing retailers Zara and H&M)
    • Others (e,g. Netflix) no longer having a physical presence but are providing intangible entertainment services online

Exam Tip

As economies develop, we see a movement away from the primary sector towards the secondary sector. Post-industrial economies are focused on the tertiary and quaternary sectors. 

It is easy to assume that tertiary sector employment is higher paid than jobs in the secondary sector. This is not necessarily the case. Added value is higher in most tertiary industries than in secondary sector industries. However, many tertiary sectors (such as hospitality and healthcare) pay low salaries.

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Lisa Eades

Author: Lisa Eades

Lisa has taught A Level, GCSE, BTEC and IBDP Business for over 20 years and is a senior Examiner for Edexcel. Lisa has been a successful Head of Department in Kent and has offered private Business tuition to students across the UK. Lisa loves to create imaginative and accessible resources which engage learners and build their passion for the subject.