Solow Model Case Study

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Part I
Growth Accounting
To answer the questions, such as what factors are the main in growth process and how countries grow over time, there are two complementary approaches.

First one is growth theory, which depicts the interactions among factor supplies, productivity growth, saving and investment in the process of growth. And the second one is Growth Accounting, which tries to quantify the contributions of different determinants of output growth. The idea of growth account is to account for the contribution to the growth of output made by the growth of factor inputs (capital and labor) and to associate any growth unaccounted for to technological progresses. Solow referred to this residual as total factor productivity growth. Total factor …show more content…

Solow Model does not explain why saving, n, g and technology vary across countries.

2. Solow Model does not explain long run differences in growth rates.

3. It does not explain why some countries have caught up, while others have not. Is the reason behind this are geographical, historical, and/or institutional differences?

4. Solow Model is a one sector approach, which assumes factors that drive steady state, and treats saving rate, population growth, and technical change as exogenous.

5. The Solow model is based on the assumption of labor-augmenting technical progress. It is, however, a special case of Harrod-neutral technical progress of the Cobb-Douglas production function type which does not possess any empirical justification.

6. The Solow model is based on the unrealistic assumption of homogeneous and flexible capital. As a matter of fact, capital goods are highly heterogeneous and thus pose the problem of aggregation. Consequently, it is not easy to arrive at the steady growth path when there are varieties of capital goods.

7. Solow Model ignores the problems of inducing technical progress through the process of learning, investment in research, and capital …show more content…

It can be said that the Harrod-Domar Model is Keynesian and the Solow Model is Neoclassical. However, as we have seen that, the Harrod-Domar Model puts capital formation and saving as the forefront of economic growth and that the Gross Domestic Product (GDP) of a country is directly proportional to the growth of investments. Meanwhile, the Solow Model refutes that long term growth cannot be achieved through capital growth alone since diminishing marginal utility must be taken into

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