Economic modernization theories such as Rostow's stages model have been heavily inspired by the Harrod-Domar model which explains in a mathematical way the growth rate of a country in terms of the savings rate and the productivity of capital.
Teorije ekonomske modernizacije, kao što su faze Rostovog modela, su jako inspirisane modelom Harod- Domar koji objašnjava na matematički način stope rasta u zemljama u pogledu stope štednje i produktivnosti kapitala.