Brief Survey of the Literature -- I. Small Open Economy -- 1. Solow Model -- 2. Overlapping Generations -- 3. Infinite Horizon -- II. Two Countries -- 1. Different Saving Rates (Overlapping Generations) -- 2. Different Saving Rates (Solow Model) -- 3. Technical Progress Abroad (Solow Model) -- 4. Different Rates of Labour Growth (Overlapping Generations) -- III. Imperfect Capital Mobility -- 1. Solow Model (Fixed Debt Ratio) -- 2. Overlapping Generations -- 3. Inifinite Horizon (Fixed Debt Ratio) -- IV. Labour Mobility -- 1. Introducing Labour Mobility -- 2. Different Rates of Labour Growth -- V. Fixed Wage Rate -- 1. Closed Economy -- 2. Perfect Capital Mobility -- 3. Imperfect Capital Mobility -- 4. Land as Immobile Factor -- VI. Endogenous Growth -- 1. Closed Economy -- 2. Small Open Economy -- 3. Two Countries -- 4. Infinite Horizon -- Conclusion -- Result -- Symbols -- References.