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Integration with the Global Economy: A Structural Macroeconometric Modelling of Korea. Jarir Ajluni. Background. Background: The Korean Miracle. Key Achievements of the Korean Economy Growth. (GDP per capita doubled 11 times during 1960 – 2003)
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Integration with the Global Economy: A Structural Macroeconometric Modelling of Korea Jarir Ajluni
Background: The Korean Miracle Key Achievements of the Korean Economy • Growth. (GDP per capita doubled 11 times during 1960 – 2003) • Exporting Boom. (Gross exports increased by 6000 times!) • Industrialisation (increased share of manufactured exports) • Financial Development (financial Depth in M2/GDP). • Attractive destination for FDI. • Joining the OECD!
Background: The Korean Miracle Key Challenges to the Korean Economy • Oil Price Hikes (OPEC oil price shocks 1973 & 1979) • Integration (increased exposure to global fluctuations) • Geo-Political Constraints. • Corruption. • The Asian Crisis of 1997(currency crisis, increased interest rates, doubled Unemployment, recession)
R, ex IS y LM LM BP IS BP The Theoretical Framework • The IS-LM-BP Framework • Purchasing Power Parity PPP
Core Model Econometric Formulation of IS-LM-BP-PPP leads to: Error terms above are “Deviations from Equilibrium”
Classifying trading partners Trading partners are grouped into: • United States (US). • Rest of the G7 (RG7). • Rest of the OECD countries (ROECD). • Developing Oil Exporting Countries (DOEC).(including OPEC & non-OPEC exporters) • Rest of Developing Trading Partners (RDTP).
Construction of the Trade Weights Country Trade Weights (h: home f: foreign economy) Regional Trade Weights (h: home j: Region) Aggregation conditions holds:
Directions of Trade 1980 - 2000 36% of trade towards Developing countries 45 % of trade towards Developing countries Importance of the G7 group: US and Japan
Construction of the Model Global vector by using trade weights of (6.1) (6.2) VAR in (8) would be written in the form of (9)
Let vector Z be: Weak Exogeneity imply: VECM & Partial Systems Then the VECM of (9) would be : then we could split (10) into:
Recall VECM: Identification applying restrictions from (5a – 5d) derived from IS-LM-BP-PPP.
Empirical Results • Presence of 4 Cointegration relationships. • Identification restrictions rejected. • Weak Exogeneity of Global Vector & Oil Price. • Low Capacity for an Independent Monetary Policy. • Evidence on higher interest rates strangling the economy (Stiglitz was right!).
Impulse Response Functions Response to domestic monetary policy shock
Policy Implications • Raising the Interest Rate is NOT effective in generating capital inflow supporting the exchange rate, other factors should be considered. • High responsiveness of the Interest Rate suggest Monetary policy would not be independent and should target domestic financial system & inflation NOT the exchange rate. • The importance of adjusting to foreign monetary policy shocks: The Best Response proposition.
Testing the Model’s forecasting validity Root Mean Square Errors: y : 0.33429 p : 0.278432 m-p: 0.65651 R :26.25877 e : 0.960