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8/12/2019 Ch1 Solow Growth
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,
_________________________________
_________________________________
: .()
:
( ADVENCED MACROECONOMICS. 3thED)
( MACROECONOMICS. 5thED)
2011
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CHAPTER 1
SOLOW GROWTH MODEL
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::: - 1 :::
1.
-
-
Rule of 70- g% - 2
70/g .
1960 1000. .
2% 7% 10 (. 70/7) 2 .
35 (=70/2) 2 . 30 1990 $1,000*23=$8,000
$2,000.
- ?
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- ?
2.
-
-
.
-
.
- : . .
:
- .
-
( )-
Constant return to scale.
c
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- 0 .
:
.
: : :-
:
:
:
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::: - 2 :::
- : aa :
:
:
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- :
- -
- -
3.
:
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()
Steady state: , - S.S : - () - - - ()
S.S :
-
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-
- ()
: ---
- ?
- :
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g:
4. S.S
- () ()
- : s
- :
- Level effect, but no growth effect
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::: - 3 :::
: - :
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-
5. ()
()
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[ ]
[ ]
[ ]
- in most countries
10% (20% ~ 22%)
5% .
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- - -
6.
- : ::
- .
- : - . .
- 100 10 .- 20-30 .- - :
10 2
.
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7.
- ?- ( ) .
-
Solow Residual: .
:
.