While modernization theory focuses on production of wealth ; dependency theory focuses on distribution of wealth.
Dependency theory is the idea that assets spill out of an "outskirts" of poor and immature states to a "center" of well off states, improving the last to the detriment of the previous.
Modernization theory used to clarify the procedure of modernization that a country experiences as it changes from a conventional society to a cutting edge one. The hypothesis has not been credited to any one individual; rather, its advancement has been connected to American social researchers in the 1950s.