1. Dependency Theory- A process Where by some countries Like  MDC's experience growth at the expansion of other LDC's  It can also be considered as the notion where resources flow from a periphery and underdeveloped states to a core of wealth economic states.

• It promotes interdependency of countries in the modern and traditional ways for mentaning development of a country. 
• It also explain and explores the global inequalities as well as social class differences. 

 2. Modernization Theory-  Is the process which refers to  a model of a progressive transaction from tradition to modern of social economical and cultural transformation.

• Avoid and ignores global inequalities as well as social class differences. 
• Aims at eliminating pre modern way to modern society.