Who is rostow's in development process?

Walt Rostow was an American economist and political theorist who developed the Rostow's Stages of Economic Growth model in the 1960s. This model outlines a series of five stages through which countries pass as they develop economically, from traditional society to the age of high mass consumption. Rostow's model has been influential in the field of development economics and has been used to analyze and understand the development process in various countries around the world.