ECON1010 Lecture Notes - Lecture 4: Market Clearing, Moral Hazard, Frictional Unemployment

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Lecture 4
UNEMPOLYMENT
Unempolyment is usually seen as two separate problems
Unemployment is the percentage of the labour force that is unemployed
- Unemployment rate = number of unemployed/labour force x 100
- Long run problem
o Focuses on reducing the natural rate of unemployment
- Short run problem
o Focuses on reducing the cyclical rate of unemployment
IDENTIFYING UNEMPLOYMENT
Natural Rate of Unemployment
Unemployment accounted for by structural long-term factors around which the actual unemployment
fluctuates
- Where the economy would settle in the long run in the absense of shocks
- The natural rate of unemployment is unemployment that does not go away on its own even in the
long run.
- It is the amount of unemployment that the economy normally experiences.
o Long term
- The level at which the economy is at the full employment
o We always expect there to be unemployment
IT IS
- Not fixed
- Not inevitable
- Not desirable
IT
- Changes over time
- Is the level and type of employment that wont go away on its own
Cyclical Unemployment
Deviations of unemployment from its natural rate due to the business cycle
- Cyclical unemployment refers to the year-to-year fluctuations in unemployment around its natural
rate.
- It is associated with short-term ups and downs of the business cycle.
The business cycle
- Fluctuations in economic activity over time
Expansion
- Economy Grows
o Employment
o Production
o Sales
o Incomes
Recession
- Economy contracts
o When activities start to contract
HOW IS UNEMPLOYMENT MEASURED
- Unemployment is measured by the Australian Bureau of Statistics (ABS).
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- The ABS surveys 0.5% of Australian households chosen randomly. The survey is known as the Labour
Force Survey.
- Estimates of unemployment are derived from this survey
Based on the answers to the survey questions, the ABS places each adult into one of three categories:
- employed
- unemployed
- not in the labour force
The ABS considers a person an adult if he or she is aged 15 or older.
- A person is considered employed if he or she has spent 1 hour of the previous week working at a paid
job or family business.
- The labour force is the total number of workers, i.e. the sum of the employed and the unemployed.
- A person who is neither employed nor unemployed is not in the labour force
The unemployment rate is calculated as the percentage of the labour force that is unemployed.
100
fo rce La b o u r
u n em p loy e d N u m b er
=rate ntU n e m p lo y m e
´
- The labour-force participation rate is calculated by dividing the labour force (employed +
unemployed) by the adult population (15 year plus)
LABOUR FORCE
Total number of workers including both the employed and unemployed
Labour force participation rate = labour force/working age population x 100
WHAT EXPLAINS THE RISE IN THE FEMALE PARTICIPATION RATE
- New technology in the home
o Women have more time available for paid work
- Improved birth control
o Fewer children to take care of
- Changing political and social attitudes
o Greater employment opportunities for educated women
WHAT EXPLAINS THE FALL IN THE MALE PARTICIPATION RATE
- Longer schooling
- Earlier retirement and longer lives
- Higher female employment
o More fathers stay home to raise children
iS UNEMPLOYMENT MEASURED CORRECTLY
- Discouraged workers, people who would like to work but have given up looking for jobs after an
usuessful searh, do’t sho up i ueployet statistis
- Other people may claim to be unemployed in order to receive financial assistance, even though they
are’t truly lookig for ork.
HOW LONG ARE THE UNEMPLOYED WITHOUT WORK
- Most spells of unemployment are short.
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Document Summary

Unempolyment is usually seen as two separate problems. Unemployment is the percentage of the labour force that is unemployed. Unemployment rate = number of unemployed/labour force x 100. Focuses on reducing the natural rate of unemployment. Focuses on reducing the cyclical rate of unemployment. Unemployment accounted for by structural long-term factors around which the actual unemployment fluctuates. Where the economy would settle in the long run in the absense of shocks. It is the amount of unemployment that the economy normally experiences. The level at which the economy is at the full employment: we always expect there to be unemployment. Is the level and type of employment that wont go away on its own. Deviations of unemployment from its natural rate due to the business cycle. Economy contracts: when activities start to contract. Unemployment is measured by the australian bureau of statistics (abs). The abs surveys 0. 5% of australian households chosen randomly. Estimates of unemployment are derived from this survey.

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