ECON 2202 Lecture 18: Ch4. The Malthusian Model (chapter7 in the textbook)Lecture18

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31 May 2019
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Ch4. The Malthusian Model (chapter7 in the textbook)
2 important relation:
Population growth:
𝑔
(
𝑐
)
= 1 + π‘π‘œπ‘π‘’π‘™π‘Žπ‘‘π‘–π‘œπ‘›0π‘”π‘Ÿπ‘œπ‘€π‘‘β„Ž0π‘Ÿπ‘Žπ‘‘π‘’
Ex: 1+2%=1.02
Consumption per person:
𝑐 = 5
6=7
6=89:6;<:
6= 𝑧
>
9
6
?
@= 𝑧𝑙@
𝑐 = 𝑧𝑙@
(0<a<1)
c'
l'
Case 1: One time increase in Z
C-g(c). Move along the curve.
C-l. curve goes higher.
Case 2: A war occurs, kills a fraction of N
Case 3: Discovery of new land.
Case 4: A mass migration
Lecture2
Thursday, November 8, 2018
11:05 AM
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