Abstract I . The Necessity of Long-Term Projection 1. Increasing Uncertainty in the Global Economy 2. Structural Problems in the Korean Economy 3. Increasing Demand of Long-Term Projection for Industrial Structure II. Changes in the Domestic and International Environment for Korean Industry 1. Environment/Energy Sector 2. Global Economy Sector 3. Technical Development Sector 4. Society/Culture Sector III. The Long-Term Structural Changes in the Korean Economy 1. Economic Growth Pattern 2. Change in Demand Structure 3. Changes in Industrial Production Structure 4. Change in Export Structure 5. Change in Import Structure 6. Change in Employment Structure IV. Methodology for Long-Term Projection 1. KIET-DIMM12 (KIET-Dynamic Inter-Industry Macroeconomic Model 12) 2. Procedure for Projection 3. Assumptions for Domestic Exogenous Variables 4. Assumptions for Foreign Exogenous Variables V. Long-Term Projection for the Economy and Industrial Structure 1. Projection for Economic Growth and Demand Structure 2. Projection for Industrial Production Structure 3. Projection for Export and Import Structure 4. Projection for Employment Structure VI. Policy Implications of Long-Term Projection References