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Development Economics III. Prof. Dr. Hans H. Bass Jacobs University, Spring 2010. Agenda Feb. 18. Development Economics. Causes of and Strategies for Development: Traditional ... 1.1 Creating preconditions for take-off 1.1.1 Stages of growth 1.1.2 Harrod/Domar growth model
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Development EconomicsIII Prof. Dr. Hans H. Bass Jacobs University, Spring 2010
Agenda Feb. 18 Development Economics • Causes of and Strategies for Development: Traditional ... 1.1 Creating preconditions for take-off 1.1.1 Stages of growth 1.1.2 Harrod/Domar growth model 1.2 Structural change and modernization 1.2.1 Dual labor market model 1.2.2 Patterns of development 1.3 Overcoming dependency 1.4 Getting the prices right • ... and New
Stages of Economic Growth 1 Causes of and Strategies for Development: Traditional1.1 Creating preconditions for take-off 1.1.1 Stages of growth • historical analogy • traditional society • pre-conditions for take-off into self-sustaining growth • take-off • drive to maturity • age of high mass consumption • “These stages are not merely descriptive. [...] They have an inner logic [...]” (W. W. Rostow 1960) “Theory of Economic Growth”
Take off (Rostow) 1 Causes of and Strategies for Development: Traditional1.1 Creating preconditions for take-off 1.1.1 Stages of growth • I / GNP* > 10 % I = S domestic + S external Example Japan 1880 1930: 12% 25% • At least one leading sector ( unbalanced growth with linkages) above average growth of demand and supply income elasticity of demand εD,Y and ... supply εS,Y both > 1 significant share in the economy transmittance of technological key innovations to other industries strong backward and forward linkagesExample Japan: railways, textiles (cotton) • Establishing the political, social and institutional framework conditions for a modern industrial society
Harrod-Domar growth model 1 Causes of and Strategies for Development: Traditional1.1 Creating preconditions for take-off 1.1.2 Harrod-Domar growth model national income Y = f (K, L), gY = ∆Y / Y savings investment (Y=C+S and Y=C+I) savings S = s Y (attitudinal relation) net investment I = ∆K capital-output ratio k = K / Y (technical relation) or: k = ∆K / ∆Y or: ∆K = k ∆Y S = I or: S = s Y = k ∆Y = ∆K = I or: s Y = k ∆Y ∆Y / Y = s / k
Harrod-Domar growth model 1 Causes of and Strategies for Development: Traditional1.1 Creating preconditions for take-off 1.1.2 Harrod-Domar growth model In order to grow, economies must save and invest a certain proportion of their GNI gY = s / k The more they can save and invest, the faster they can grow However, the actual growth rate for any level of savings and investment is determined by 1/k (the inverse of k, i.e. capital productivity!) Example: s = 6%, k = 3, gY = 2% take-off: s = 15%, k = 3, gY = 5%
Harrod-Domar growth model in practice 1 Causes of and Strategies for Development: Traditional1.1 Creating preconditions for take-off 1.1.2 Harrod-Domar growth model The savings gap can be filled by foreign aid, FDI, or loans ( Marshall Plan II) or forced saving (!) However, capital accumulation necessary, but not sufficient condition (Marshall plan II ≠ Marshall plan I) economic myopia
Dual labor market model 1 Causes of and Strategies for Development: Traditional1.2 Structural change and modernization1.2.1 Dual labor market model • W. Arthur Lewis + Fei / Ranis, 1960s / early 1970s • Two sectors: I) traditional, overpopulated rural subsistence, zero marginal productivity of labor (“surplus labor”), wage rate according to average product, unlimited supply of labor II) modern industrial sector, profit-maximizing behavior of enterprises, wage rate according to marginal product, perfectly wage elastic supply of rural labor (supply curve: subsistence wage plus premium) all profits being reinvested • upward spiral of self-sustaining growth until modernization completed
Criticisms 1 Causes of and Strategies for Development: Traditional1.2 Structural change and modernization1.2.1 Dual labor market model • no labor saving technology considered: possibility of anti-developmental economic growth (increased inequality) • often no surplus labor in rural areas • until 1980s: tendency of urban wages to rise in spite of open modern-sector unemployment • diminishing returns in the modern sector questionable( New Growth Theory, external effects, but complementary state investment in infrastructure etc. necessary)
Dual labor market model in practice 1 Causes of and Strategies for Development: Traditional1.2 Structural change and modernization1.2.1 Dual labor market model • neglect of agriculture • neglect of urban informal sector
Patterns of development analysis 1 Causes of and Strategies for Development: Traditional1.2 Structural change and modernization1.2.2 Patterns of Development • Hollis Chenery et al. (late 1970s, early 1980s) • Similarity to simple stage models:development = sequential process, S↑ I ↑ necessary • Difference:S↑ I ↑ not sufficient! • Structural changes in socio-economic factors necessary • In practice: struggling for the right mix of policies • Criticism: lack of theoretical rigor can lead to wrong intervention in assumed causal chains
Dependency Theory 1 Causes of and Strategies for Development: Traditional1.3 Overcoming Dependency • 1970s, 2000f. (anti-globalization movement) • Causes for under-development: neo-colonial dependence, intentionally exploitative or unintentionally neglectful attitude of First World to Third World • Underdevelopment externally induced • In practice: De-linking, state-owned enterprises, and industrial nationalism (import substitution industrialization strategy ISI) / collective self-reliance • Criticism: Experiences all negative
Market Fundamentalism 1 Causes of and Strategies for Development: Traditional1.4 Getting the Prices Right • 1990s • Causes for under-development: incorrect pricing policies too much state intervention, poor resource allocation New Political Economy minimum government is best • Under-development internally induced • In practice I: Privatization, reduction of state intervention, integration into the world economy according to static comparative advantages • In practice II: “Market-friendly approach”, non-selective interventions, suitable climate for private enterprises • Criticism: Positive development examples were non-fundamentalist during take-off (Germany, USA, Japan ... Taiwan, South Korea, China) and developed dynamic comparative advantages by state involvement
Conclusion Causes of and Strategies for Development • each approach has its strengths and weaknesses (see case study on ROK and Argentina) • no universally accepted paradigm • traditional approaches have informed new, eclectic approaches