Econometrica: Oct 1964, Volume 32, Issue 4
A Model of Economic Growth in Rostovian Stages
S. C. TsiangThis paper gives a non-linear growth model, which explains the development of an economy through stages somewhat similar to the Rostovian stages. Non-linearity is introduced by including the inaugmentable factor of land or natural resources in the production function along with labor and capital, and by recognizing that net saving is not a linear homogeneous function of income alone, but might be affected by the distribution of income and the interest rate and tends to be negative when per capita income is very low. Furthermore, population growth is assumed to follow a Neo-Malthusian pattern. The effects of non-neutral as well as neutral technical progress are discussed in this paper.
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