Scarcity and Unlimited Wants.

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Borja Hormaeche

Business Studies Research

Scarcity

Unlimited Wants

Humans have many different types of wants and needs. Economics looks only at man's material wants and needs. These are satisfied by consuming (using) either goods (physical items such as food) or services (non-physical items such as heating).

There are three reasons why wants and needs are virtually unlimited:

  1. Goods eventually wear out and need to be replaced.
  2. New or improved products become available.
  3. People get fed up with what they already own.

Limited Resources

Commodities (goods and services) are produced by using resources. The resources shown in Table 1.1 are sometimes called factors of production.

Table 1.1 Different types of resource

Types of Commodity

A free good is available without the use of resources. There is zero opportunity cost, for example air. An economic good is a commodity in limited supply.

Expenditure on producer or capital goods is called investment.

The Economic Problem

The economic problem refers to the scarcity of commodities. There is only a limited amount of resources available to produce the unlimited amount of goods and services we desire.

Society has to decide which commodities to make. For example, do we make missiles or hospitals? We have to decide how to make those commodities. Do we employ robot arms or workers? Who is going to use the goods that are eventually made? Do we build a sports hall in Wigan or Woking?

Opportunity Cost

The opportunity cost principle states the cost of one good in terms of the next best alternative. For example, a gardener decides to grow carrots on his allotment. The opportunity cost of his carrot harvest is the alternative crop that might have been grown instead (eg potatoes). Further examples are given in Table 1.2.

Table 1.2 Examples of opportunity cost decisions

Economic Systems

An economic system is the way a society sets about allocating (deciding) which goods to produce and in which quantities. Different countries have different methods of tackling the economic problem. There are three main types of economy.

Market Economies

A market or capitalist economy is where resources are allocated by prices without government intervention. The USA and Hong Kong are new examples of market economies where firms decide the type and quantity of goods to be made in response to consumers. An increase in the price of one good encourages producers to switch resources into the production of that commodity. Consumers decide the type and quantity of goods to be bought. A decrease in the price of one good encourages consumers to switch to buying that commodity. People on high incomes are able to buy more goods and services than are the less well off.

Command Economies

In a command-planned or socialist economy the government owns most resources and decides on the type and quantity of a good to be made. The USSR and North Korea are examples of command economies. The government sets output targets for each district and factory and allocates the necessary resources. Incomes are often more evenly spread out than in other types of economy.

Mixed Economies

In a mixed economy privately owned firms generally produce goods while the government organises the manufacture of essential goods and services such as education and health care. The United Kingdom is an example of a mixed economy.

Population Size

Method of Calculation

The study of population statistics is called demography. Since 1801 a population census (survey) of the UK has been held every ten years to count the number of people in the country.

A census is carried out because the government needs to plan ahead. The figures can be used to estimate the number of roads, schools, hospitals etc likely to be needed in the future.

Birth Rate

The crude birth rate is the number of births per thousand of the population in a year. The birth rate has fallen from 28.6 in 1900 to 12.8 in 1988. This dramatic fall has been caused by:

  • Improved birth control. Contraceptives are now more available and socially accepted.
  • Women choosing to continue working, or waiting before raising smaller families.

Death Rate

The death rate is the number of deaths per thousand of the population in a year. The death rate has fallen from 18.4 in 1900 to 11.7 in 1988. This fall has been caused by:

  • Improved housing, diet and sanitation.
  • Improved health care through medical discoveries and introduction of the National Health Service.

Migration

Migration happens when people either permanently leave a country (emigration) or enter it (immigration). Net migration is the difference between the number of people emigrating and immigrating.

People usually want to leave countries (voluntary emigration) for two reasons:

  1. Push factors which include high unemployment, low living standards or poor climate in their own country.
  2. Pull factors which include good job prospects and high living standards in a new country.

Population Structure

Population Structure by Sex and Age

Population pyramids can be used to show the sex and age structure of a particular country. Developed countries tend to have an even sex and age structure while less developed ones have over half their population aged under 16.

An ageing population occurs when the average age per person is rising.

Population Structure by Area

There is an uneven spread of population about the country because:

  • Some areas are remote, hilly or uninhabitable.
  • Farming areas employ few people.
  • Industry is concentrated in towns.

80 per cent of the UK population live in England, largely in the south-east and midlands. 80 percent of people live in urban (built-up) areas. 20 cities have a population of more than 250 000. The seven UK conurbations (several towns joined together) house a third of the population but they occupy only 3 per cent of the land area. Move away from living in the inner cities.

Optimum Population

T R Malthus

Writing at the end of the eighteenth century, Malthus argued that:

  • Population rises in a geometric way, ie 1,2,4,8,16.
  • The food supply rises arithmetically, ie 1,2,3,4,5.

Only way, famine and plague would prevent absolute poverty.

Malthus did not take into account the spread of birth-control techniques which reduced the rate of population growth. Malthus also overlooked the effects of future farming inventions, and the development of foreign trade which dramatically increased the food supply.

Optimum Population

  • Optimum (best) population occurs when productivity (output per person) is highest.
  • An under-populated country can increase productivity by increasing its population.
  • An over-populated country can increase productivity by reducing its population.

Specialisation

Specialisation happens when one individual, region or country concentrates in making one good.

Division of Labour

The division of labour is a particular type of specialisation where the production of a good is broken up into many separate tasks each performed by one person. An early economist, Adam Smith, suggested that without any help one worker could produce only ten pins in one day. However, in a pin factory where each worker performs only one task, ten workers using the division of labour principle, could produce a daily total of 48 000 pins. Output per person (productivity) rose from 10 to 4800 when the division of labour principle was used.

Advantages of the Division of Labour

The division of labour raises output, thereby reducing costs per unit, for the following reasons:

  • Workers become more practised at the task
  • Workers are able to be trained more precisely for the task
  • Specialisation enables more efficient organisation of production with a series of distinct tasks

Disadvantages of the Division of Labour

Eventually the division of labour may reduce productivity and increase unit costs for the following reasons:

  • Continually repeating a task may become boring.
  • Workers begin to take less pride in their work.
  • If one machine breaks down then the entire factory stops.
  • Some workers receive a very narrow training and may not be able to find alternative jobs.
  • Mass-produced goods lack variety.

Limits to the Division of Labour

  • Mass production requires mass demand.
  • The transport system must be good enough to reach a large number of consumers (mass market) 
  • Barter is the direct exchange of goods for other goods. Each worker creates only part of the finished goods, therefore the division of labour cannot be used in a barter society.

Automation

The introduction of conveyor belts at the turn of the century allowed mass production (very large output). Automation refers to intensive use of machinery in production.

Costs of Production and Revenue

Total Costs

A firm organises the manufacture of a good or service. An industry is made up of all those firms producing the same commodity. The amount spent on producing a given amount of a good is called total cost, TC, and is found by adding together variable and fixed costs.

Variable Costs

Variable costs, VC, depend on how many goods are being made (output). If just one more unit is made then total variable costs rise. Variable costs include the following:

  • Weekly wages paid to the shop floor workers.
  • The cost of buying raw materials and components.
  • The cost of electricity and gas.

Fixed Costs

Fixed costs, FC, are totally independent of output. Fixed costs have to be paid out even if the factory stops production. Fix costs include the following:

  • monthly salaries paid to managers;
  • rent paid for the use of premises;
  • rates paid to the council;
  • any interest paid on loans;
  • insurance payments in case of accidents
  • money put aside to replace work-out machines and vehicles sometime in the future (depreciation).

Average Cost

Average cost, AC or unit is the cost of producing one item and is calculated by dividing total costs by total output.

Marginal Cost

Marginal cost, MC is the cost of producing one extra unit and is calculated by dividing the change, , in total costs by the change in output.

Revenue

  • Total revenue, TR, is the money the firm gets back from selling goods and is found by multiplying the number sold, Q, by the selling price, P. 
  • Average revenue, AR, is the amount received from selling one item and equals the selling price of the good.
  • Marginal Revenue, MR. 

Equations

TC = VC + FC

VC = TC - FC

FC = TC - VC

AC = TC/Q

TR = P x Q

AR = TR/Q

MC = TC/Q

MR = DTR/DQ

Social Cost

The private cost to a motorist of driving from Cornwall to Scotland is the cost of petrol and oil and the wear and tear on his car. However, other people have to put up with the externalities of the journey, for instance the noise, smell, pollution and traffic congestion the motorise helps to cause along the way.

If we add on to private cost an amount of money to compensate for the inconvenience caused, the overall figure will be the social cost of the journey:

Private costs + Externalities = Social cost

(Cost to individual) + (Cost to other people) = (Cost to everyone)

Economies of Scale

These occur when mass producing a good results in lower average cost. Economies of scale occur within an firm (internal) or within an industry (external).

Internal Economies of Scale

These are economies made within a firm as a result of mass production. As the firm produces more and more goods, so average cost begin to fall because of:

  • Technical economies made in the actual production of the good. For example, large firms can use expensive machinery, intensively.
  • Managerial economies made in the administration of a large firm by splitting up management jobs and employing specialist accountants, salesmen, etc.
  • Financial economies made by borrowing money at lower rates of interest than smaller firms.
  • Marketing economies made by spreading the high cost of advertising on television and in national newspapers, across a large level of output.
  • Commercial economies made when buying supplies in bulk and therefore gaining a larger discount.
  • Research and development economies made when developing new and better products.

External Economies of Scale

These are economies made outside the firm as a result of its location and occur when:

  • A local skilled labour force is available.
  • Specialist local back-up forms can supply parts or services.
  • An area has a good transport network.
  • An area has an excellent reputation for producing a particular good. For example, Sheffield is associated with steel.

Internal Diseconomies of Scale

These occur when the firm has become too large and inefficient. As the firm increases production, eventually average costs begin to rise because:

  • The disadvantages of the division of labour take effect
  • Management becomes out of touch with the shop floor and some machinery becomes over-manned.
  • Decisions are not taken quickly and there is too much form filling.
  • Lack of communication in a large firm means than management tasks sometimes get done twice.
  • Poor labour relations may develop in large companies.

External Diseconomies of Scale

These occur when too many firms have located in one area. Unit costs begin to rise because:

  • Local labour becomes scarce and firms now have to offer higher wages to attract new workers.
  • Land and factories become scarce and rents begin to rise.
  • Local roads become congested and so transport costs begin to rise.

Integration

Integration

This occurs when two firms join together to form one new company. Integration can be voluntary (a merger) or forced (a takeover). The figure below shows the three main types of integration.

Motives for Integration

  • Integration increases the size of the firm. Larger firms can achieve more internal economies of sale.
  • One firm may need fewer workers, managers and premises (rationalisation).
  • Large domestic firms are then more able to compete against large foreign multinationals.
  • Integration allows firms to increase the range of products they manufacture (diversification. Diversified firms no longer have 'all their eggs in one basket'.
  • Reduce competition by removing rivals.

Survival of the Small Firm

Small firms are able to compete with large firms because:

  • Some products cannot be mass produced, eg contact lenses.
  • Some products have only a limited demand, eg horse shows.
  • Some products require little capital, eg window cleaning.
  • Small firms receive grants and subsidies from the government.

Market Structure

Market structure refers to the number of firms in an industry. In perfect competition there are a large number of small firms in the industry, each producing identical products. Very few markets are perfectly competitive but one example is wheat.

In a monopoly one firm supplies 25 per cent or more of a market. The Ford Motor Company is an example of a monopoly firm. A pure monopoly is a special type of monopoly where one firm supplies the entire market. British Rail is an example of a UK pure monopolist.

Private- and Public-sector Firm

The Private Sector

The economy can be divided into the private and public sectors. The private sector is made up of members of the general public and firms owned by the general public. These firms include sole traders, partnerships, limited companies (owned by private shareholders) and Public Limited Companies (Plcs) (also owned by private shareholders).

The Public Sector

The Public Sector is made up of the central government in London, various local councils, and firms owned by the government (nationalised industries) such as the Post Office.

Private-sector Firms

Types of Private-sector Firm

Table 5.1 summarises the main types of firm owned by members of the general public.

Table 5.1 Private-sector firms

Liability

The owners are liable or responsible for the debts of a company.

  • Unlimited liability means the owner may have to sell some or all of his personal possessions to help pay off the company's debts.
  • Limited liability means that the owner loses only the money he has put into the company and no more. He does not have to sell personal belongings.

Establishing a Limited Company

Limited companies have their own legal identity. They can sue people and other companies and be sued themselves. Anyone wanting to establish a limited company must issue:

  • A memorandum of association stating the name, aims and address of the company and the amount of capital to be raised.
  • Articles of association stating the internal organisation of the company.

The Registrar of Companies then issues a certificate of incorporation which permits the company to trade.

The limited company then prepares a prospectus describing the history and prospects of the firm and inviting individuals to buy their shares. Only a public limited company can advertise its prospectus.

Each share allows one vote and pays one dividend (profit payment). Each year the shareholders elect a chairman and a board of directors who control the everyday running of the firm.

Public-sector Firms

Types of Public-sector Firm

Each nationalised industry (or public corporation) has its own Act of Parliament and its own government minister. Firms owned by the government aim to operate in the public interest and do not necessarily try to make maximum profits.

Public Limited Companies and Public Corporations

These are compared in Table 5.2

Table 5.2 Differences between public limited companies and public corporations

Privatisation

The Thatcher administration followed a course of selling state-owned firms such as British Telecom back to the private sector. This is called privatisation.

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Arguments for Privatisation

  • Firms operate more efficiently in the private sector because they are trying to maximise profits.
  • Money can be raised to increase government services or to pay for tax cuts.
  • Ordinary people become shareholders and take a greater interest in economic matters ('peoples's capitalism').

Arguments Against Privatisation

  • Public monopolies simply become private monopolies.
  • Socially necessary but unprofitable services may not now be provided.
  • Nationalised industries are already owned indirectly by the general public.

Multinationals

A multinational corporation is a very large firm with a head office in one country ...

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