HARROD-DOMAR, SOLOW-SWAN, LEWIS, AND LUCAS-ROMER MODELS
The first, from Roy F. Harrod and Evsey Domar, posits that a country’s growth rate depends on the productivity of capital and the rate of investment, which in turn is largely determined by the domestic savings rate.
During the early stages of development, the productivity of capital is expected to be high because there are huge unfulfilled investment needs, and the limiting factor is thus the availability of savings to finance investment.
China’s development bears this out spectacularly. High domestic savings and high productivity of capital both contributed to China’s rapid growth after 1978.
The first, from Roy F. Harrod and Evsey Domar, posits that a country’s growth rate depends on the productivity of capital and the rate of investment, which in turn is largely determined by the domestic savings rate.
During the early stages of development, the productivity of capital is expected to be high because there are huge unfulfilled investment needs, and the limiting factor is thus the availability of savings to finance investment.
China’s development bears this out spectacularly. High domestic savings and high productivity of capital both contributed to China’s rapid growth after 1978.
Comment