Macro 2 Flashcards
What is the rule of 70?
time to double= 70/ growth rate percentage point
If growth rate is 7%, time to double is APPROXIMATELY…
10 years
70/7 years (precise is 10.24)
What is the growth equation?
gRGDP per capita ≈ gProductivity + gAvg. Hrs. + gEPR.
Given sufficient time, even a ____ difference in annual growth rate of RGDP creates ______ difference in RGDP
small
big
Why do countries have different growth?
Institutions needed for markets to thrive must be developed for growth
E.g. rule of law, market orientation, openness, stability
What are examples of the rule of law? And explain?
Private property rights (Right to the proceeds of your effort and investment must be secure against criminal appropriation and govt appropriation(!) )
Enforcement of contracts (Much better to rely on a trustable legal system)
What is the benefit of central planning?
Central Planning can mobilize resources on massive scale, and is capable of great technological leaps
What are the problems of central planning?
central planning has often led to serious resource misallocation and mal-investment
INCENNTIVES WERE NOT THERE
PRIVATE PROPERTY NOT USED
NO INFORMATION , DIFFICULT TO PASS UP AND DOWN
What are market economies better at than central planning?
faster in generating and processing information about needs and constraints
far more adaptive to changes in the economic environment
What is industrial policy? What are its problems?
govt-directed attempts to grow specific targeted industries
based on protectionism tend to be inefficient
What are some ways a country can be open?
Trade: Catering to world market gives scope for firms to grow (EOS). FORCE FIRMS TO SHAPE UP
Ideas: Overeseas training, inviting foreign expertise and talent
Foreign investment: Technology transfer, tap other country’s financial resources.
What kind of stability does countries need for growth?
Macroeconomic: Low, predictable inflation. Stable exchange rate. Avoid economic crises
Political stability: Orderly changes of government, Avoid sectarian conflicts and wars
What are the conditions needed for growth
Rule of law
Market Orientation
Openness
Stability
What is the aggregate production function and what are its input?
relationship between an economy’s output (Y) and its resources and technology.
Inputs: labour(L), capital goods(K), natural resources (Land) (not really needed also), technology level(A)
Why does production function usually omit land?
Lack of natural resources has not been a constraint for growth in many countries
Resource abundance has not helped many countries grow quickly
Would raw commodity prices rise over time?
Yes implies resource constraints are becoming binding
__________ looms as the ultimate natural resource constraint
Global warming
For a given amount of capital, what happens to Y as L increases?
L= LABOUR
Each additional unit of L increases Y, but by smaller and smaller extent
Doubling L –> Less than doubling Y
Economists call this diminishing returns to labour
Why does increase in labour supply not benefit household?
Increasing labour supply, other things equal, results in falling real wage
Most households obtain much of their incomes from work
Growth by increasing labour supply may not benefit them
What is the per unit labour version of production function?
Y/L= f( K/L, A)
What is capital deepening?
raising k/l ratio
What is net and gross investment equaiton?
Net Investment = Gross Investment - Depreciation
Gross investment = private investment + governemnt investment