chapter 9©e.wayne nafziger development economics 1 chapter 9 employment, migration and urbanization
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CHAPTER 9 ©E.Wayne Nafziger Development Economics 1
Chapter 9
Employment, Migration and Urbanization
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CHAPTER 9 ©E.Wayne Nafziger Development Economics 2
Employment, Migration & Urbanization
Production Function Uniqueness of Employment Problems in
LDCs Unemployment, Underemployment &
Statistics Disguised Unemployment Rural-urban Migration Harris-Todaro Model
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CHAPTER 9 ©E.Wayne Nafziger Development Economics 3
Employment, Migration & Urbanization
Western Approaches to Unemployment
Causes of Unemployment in LDCs Policies for Reducing Unemployment
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CHAPTER 9 ©E.Wayne Nafziger Development Economics 4
The Production Function
Y = F(L, K, N, E, T) means that output (or national
product) (Y) during a given time period depends on the input flows of labor (L), capital (K), natural resources (N), and entrepreneurship (E); and prevailing technology (T).
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How unemployment in LDCs is different
Openly unemployed usually 15-24, educated, and urban (at least in low-income countries, especially in SSA and South Asia).
Women higher unemployment rate. Less likely from poorest 20% of
population. Potential source of unrest.
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Unemployment/labor force 3.7% East & South Asia. 8.2% China. 9.2% Latin America. 5.9% Middle East. 14.2% Africa. 11.1% Developing Europe & Central Asia. 6.2% high-income countries (World Bank
2003h: 52-53, ILO 2000).
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CHAPTER 9 ©E.Wayne Nafziger Development Economics 7
Labor absorption
Assume labor force growing at sub-Saharan Africas rate 2.7% yearly, 1992-2000.
1/3 of labor force employed in non-agriculture.
1/3 X what = 0.027. 1/3 X 0.081=0.027.
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CHAPTER 9 ©E.Wayne Nafziger Development Economics 8
Labor absorption Assume labor force growing at sub-Saharan
Africa’s rate 2.7% yearly, 1992-2000. 1/3 of labor force employed in non-agriculture. 1/3 X what = 0.027. 1/3 X 0.081=0.027.
Does non-agriculture labor demand grow by 8.1% yearly?
Not likely (see table 9.2, p. 314).
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CHAPTER 9 ©E.Wayne Nafziger Development Economics 9
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CHAPTER 9 ©E.Wayne Nafziger Development Economics 10
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CHAPTER 9 ©E.Wayne Nafziger Development Economics 11
Disguised unemployment
Zero marginal revenue productivity of LDC labor.
Theoretical basis – limited technical substitutability of factors.
Marginal worker or marginal hour (?).
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CHAPTER 9 ©E.Wayne Nafziger Development Economics 12
Rural-urban migration
LDC labor force growing 1.6% yearly. Urban labor force & population growing
2.4% yearly. LDC urban population/total population:
27% 1975, 35% 1992, 40% 2003. 75% Latin America, 38% Asia, 33%
Africa, 75% DCs, 47% world.
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CHAPTER 9 ©E.Wayne Nafziger Development Economics 14
LDC rural-urban migration
TWO MODELS
1. Lewis model.
2. Harris-Todaro model.
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LDC rural-urban migration
Harris-Todaro model Migration depends on expected
earnings. Wages X probability of employment..
Rs 6000 X 0.20 = Rs 1200 < Rs 3000 No migration Rs 6000 X 0.60 = Rs 3600 > Rs 3000 Labor will migrate
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Critique of Harris-Todaro ILO indicates urban/rural income is 2 in Asia &
Latin America & 4-5 in Africa. At Asian ratios, urban unemployment should be
50% to equate expected income. Urban informal sector – petty traders, artisans, &
self-employed – absorbs many. Low startup costs, no barriers to entry, hire labor
below minimum wage. Informal sector 34% Mexico City, 45% Bogota,
43% Kolkata, 50% Lagos.
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CHAPTER 9 ©E.Wayne Nafziger Development Economics 17
Effect of other amenities
Housing, shopping, transport, health care, schools.
Overurbanization in many LDCs.
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CHAPTER 9 ©E.Wayne Nafziger Development Economics 18
Keynesian approach not so applicable to LDCs
What is the Keynesian approach? Why is the Keynesian approach
NOT so applicable to LDCs?
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CHAPTER 9 ©E.Wayne Nafziger Development Economics 19
Why is the Keynesian approach not so applicable to LDCs? Supply-side shortages (managers, capital,
foreign exchange, materials) limit output & employment expansion.
Increased urban demand spurs more entrants into urban labor force.
Government spending/GNP lower than in DCs. Employment growth slower than output
growth because of capital-intensive techniques.
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Causes of LDC unemployment
Unsuitability of technology – rigid factor requirements.
Factor price distortions
High modern-sector wages.
Low capital costs. Unemployment among educated.
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CHAPTER 9 ©E.Wayne Nafziger Development Economics 21
Policies to reduce unemployment Family planning programs to reduce
population growth. Increased rural economic development. Reducing urban bias. Intermediate technology and other
modifications to inappropriate technology. Reducing factor price distortions. Reform the educational system.
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CHAPTER 9 ©E.Wayne Nafziger Development Economics 22
The best antidote for unemployment
Fast growth (such as in South Korea & Taiwan) is generally the best antidote for unemployment.