4.1.6 The Labour Market Flashcards
Who is labour demanded and supplied by?
Demanded by firms and employers
Supplied by individuals, or the ‘economically active population’
Why is labour a derived demand?
Because when the demand for a product increases, so does the demand for labour, therefore the demand for labour is derived from the demand for goods/services.
What occurs when the demand for labour = the supply of labour?
-Equilibrium wage rate
-Equilibrium quantity of workers
What is the theory relating to the demand for labour?
Marginal Productivity Theory
- That a firm will only employ labour if it thinks it will increase profits through this employment, so the labour must bring in more revenues than it costs.
What will firms base their demand decisions for labour on?
MRP - Marginal Revenue Product of labour
The extra revenue generated for each additional hired worker
How is MRP calculated?
MPP x MR
Marginal Physical Product X Marginal Revenue
MPP = The output produced by the extra worker
What is MCL?
Marginal Cost of Labour
-The cost of hiring one additional unit of labour
What is labour demand?
The number of workers an employer is willing and able to employ at a given wage rate in a given period of time.
What is the demand for labout curves in both the short and long run?
see flashcard
Both sloping down, SR has a little curve up and then down
Why does the labour demand curve slope down in the SR?
Due to the law of diminishing marginal returns:
In the SR (where at least one factor of production is fixed), as variable factors of production are added to a stock of fixed factors of production, total/marginal output will initially rise then fall.
Why does a workers MRP determain whether or not they would be hired?
Because Marginal Productivity Theory states that a firm will only hire workers up until the MRP of the last worker hired is equal to the wage rate.
Why does the labour demand curve slope down in the LR?
Because of the substitutable nature between workers and capital machinery.
At higher wage rates, firms will begin to think that labour is not so cost effective and its more cost efective to employ cheaper capital (machinery)
What is the MRP curve equal to?
The demand for labour curve.
In the SR, the wage rate has fallen, why has demand for labour increased?
Because if the wage rate decrease, the cost of hiring additional workers (MCL) falls, meaning firms will be incsentivised to hire more workers as they can afford to do so.
In the SR, the wage rate his risen, why has there been a contracion of demand for labour?
Because firms can now only hire workers with a higher MRP, reducing demand.
What are the evuation points of Marginal Productivity Theory? (4)
Difficult to measure in certain jobs - Like teaching and nursing, where physical products are not being produced, so it is difficult to measure the workers ‘output’
Many jobs are not individual - They are team based, meaning measuring individual productivity is difficuly
Trade Unions - Can create imperfections in the labour market, bargaining for higher wages that have nothing to do with worker productivity, meaning employment wont be based on MRP at a given wage rate
Self-Employed = Don’t pay themselves according to their MRP as their objectives are different to a larger organisation
What non-wage factors shift the Labour Demand Curve?
Think Please Dont Press Charges
Productivity - Directly affects individuals MRP as it influences their MP. Rise in productivity = rise in mrp = increase in firms willigness and ability to hire workers at a given wage rate (workers cheaper in comparison to MRP) = Demand shift right.
Demand for final product - Labour is derived demand, if more people want the good = demand for product rises = demand for labour rises = increasing firms willigness and ability to hiren workers at a given wage rate = demand shifts right.
Price of final product - Affects MRP as it influences MR. IF price of final product rises, MRP of workers rise = increasing willigness and ability to hire workers at a given wage rate = demand shifts right
Cost of Capital - Important in long run. If cost of capital (machines) rises, workers become less subsitituable for capital, increasing willignesss and ability of firms to hire workers at a given wage rate = demand shifts right.
What is elasticity of labour demand?
How is it calculated?
What does elastic and inelastic labour demand mean?
It measures the responsiveness of labour demanded given a change in wage rate. (how much the labour demand curve slopes)
%change in labour demanded / %change in wages
Elastic = %change in wages will result in a GREATER %change in labour demanded
What are the determinants of Labour Elasticity of Demand
SECT
Substitutability between labour and capital - If easily substitutable, wages will be more demand elastic because if wages rise, easier for firms to swap you for machines and demand for labour will fall more
Elasticity (ped) of final product - If PED for final product is inelastic, then a higher wage rate can be passed onto the consumer aas a higher price with a minimal change in demand, meaning revenue and profits will increase, meaning MRP for workers will increase, meaning demand for labour will decrease proportionally less than the increase in wages, making LED inelastic
Costs, labour costs as a proportion of total costs - If labour costs are a large proportion of total costs, as wages rise, firms need to reduce employment to stay profitable, meaning LED will be elastic.
Time Period - In the SR normally 2 factors of production are fixed, land and capital, therefore workers cannot easily be substituted for capital as wages rise, making LED more inelastic.
In the LR the opposite is true, making LED more elastic.
What is Labour Supply?
The number of workers willing and able to work in a profession at a given wage rate in a given period of time.
What does an indivdual consider when deciding whether or not they should supply their labour?
Work or leisure? One is the opportunity cost of the other.
Why does the labour supply curve slope upwards?
Income effect = Incomes rise as wage rate rises, increasing inscentive to work more hours and make more money. HOWEVER individuals can have a target income, which once reached individuals choose to work less, meaning the income effect can become negative at very high wage rates. HOWEVER this is offset in the labour supply curve for an industry
Substitution effect = The opportunity cost of leisure time rises as wages rise, increasing inscentive to work
Can the income effect cause the labour supply curve to become negative in that of an industry?
No, because the negative income effect is OFFSET by inactive workers who decide to re-enter the market becasure of the higher wages being offered, whos target incomes differ from those of the individuals who are working less.