Macroeconomics questions - Supply and demand of labour, effects of a minimum wage, labour force participation in Australia.

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ECON1102: Submission Question 2

Draw the demand and supply model of the labour market. What determines the slope and position of each curve? What factors may cause the demand for labour curve to shift?

        Price

        D        S

        

        

                                                        Quantity

Labour Demand Curve (D)

  • Negative slope is due to diminishing marginal product of labour
  •  Position of curve is determined by relative price of a firm’s output, and the productivity of a firm’s workers

Labour Supply Curve (S)

  • Positive slope reflects fact that higher real wages are required to induce an increased supply of labour.
  • Position of curve is primarily affected by size of working age population

Use the model to show the possible effects of a minimum wage law on the level of employment in an economy.  Briefly explain which workers benefit and which workers lose from a minimum wage.

Minimum wage laws prescribe the lowest hourly wage that employers must pay to workers. The demand and supply model shows that this law must raise the unemployment rate. The real wage is when the quantity of labour demanded equals the quantity of labour supplied (X). If a minimum wage is imposed (Wm) that exceeds the market clearing wage, then the number of people who want jobs exceeds the number of people who are willing to hire, thus creating unemployment.

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        D        S

Wm

                X

 

This law benefits especially low skilled workers, who would have not otherwise earned more.

Define the “labour force participation rate.” What factors determine the labour force participation rate?

The labour force participation rate is more commonly used as a measurement of unemployment. The ‘labour force’ is the total number of people employed or actively seeking employment within the economy. Hence, the ‘labour force participation rate’ is then the labour force expressed as a percentage of the population aged 15 and over.

In the short-term, one ...

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