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Wednesday, May 2, 2012

Aggregate supply


Aggregate supply
Aggregate supply
Aggregate supply is the total amount of goods and services produced by an economy in a year
Short run
http://tutor2u.net/economics/content/diagrams/aggsupp1.gif
Short run is when all the factors of production do not change

do not change so there is a positive relationship between output and average price levels.
Shifts in sras
https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjExgZpvcWadcCKsMNBuCKINf3Zg5nAS6uaEBW5E3OKbnfVb6okn0SQ-v46vZ73dVub3FcquBR9rOJXICOdoPvPqWXuFcSyZzeq1R73NCMQ-zUVTm82nq4XolrPB3Oet-oZObniknTAjS8/s1600/shifts+in+SRAS.png
A change in anything other than price level will result in a shift in the SRAS curve

Supply side shocks
Typical changes-

A change in the wage rates

A change in raw materials

A change in the price of imports

A change in government indirect taxes and subsidies

Combining AD and AS in the short run
The economy will meet at the equalibrium
Long run aggregate supply
New classical LRAS
Beleif in the effeciency of the market/ little gov. intervention
   LRAS is vertical at Full employment level of output which represents potential output

LRAS is based on quality and quantity independent of price level.
http://www.amosweb.com/images/AgSp05.gif
Keynesian AS
http://www.bized.co.uk/sites/bized/files/images/keynrefl.gif
Phase 1: perfectly elastic phase- low output levels mean industries can increase output without incurring higher average costs due to spare capacity in the economy
Phase 2: security phase- as the economy approaches Yf spare capacity is used up and FOP are scarce. Producers start competing for scarce FOP so increased output means higher costs so higher average price levels
Phase 3: Economy has reached full capacity (yf) so output cannot be increased so competition amng firms for FOP results in increase average price levels (inflation) output cannot go up without a shift in the curve

Shifts in LRAS
Steady increase, move to the right if therwe is an improvement in quality of the factors of production, or increase.
Factor of production
Increase In quantity
Increase in quality
Land (all natural resources)
Land reclamation (Netherlands reclaiming the sea from the north sea)
Increase access to supply
Discovery of new resources
Tech advances that allow increased access or discovery of new resources
Fertilizers
irrigation
Labor + entrepreneurship
Increase of birth rate
Immigration
Decrease in natural rate of unemployment
Education
Training
Re-training
Apprenticeship programs
capital
Investment
Tech advances that contribute to more efficient capital
Resource and development
Supply side policies
Policies to increase supply
Market based and interventionist
Interventionist supply side policies (keynsisian)
Market based supply side policies (classic)
Investment in human capital
(education) (training)
Reduction in household income taxes
Research and development
Tax incentives, enforcing intellectual. Property rights or research and development in universities
Reduction in corporate taxes
Provision and maintenance of infrastructure
Labor market reform
1)reduce trade union power
2) reduce or eliminate minimum wage
3) reduce unemployment benefits
Direct support for businesses/industrial policies
Anti trust laws, helping small/medium sized firms become established and grow
Deregulation
Infrastructure- large scale capital which is necessary for economic activity to take place, usually provided by government
Privatizing
Policies to increase competition

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