Development Theory refers to a collection of ideas and frameworks that seek to explain how societies progress and improve over time. It encompasses various approaches, including modernization theory, which suggests that societies evolve through stages of development, and dependency theory, which argues that underdeveloped nations are often exploited by developed ones, hindering their growth. These theories aim to understand the economic, social, and political factors that influence development. They also guide policymakers in creating strategies to promote growth and reduce poverty. By analyzing historical and contemporary examples, Development Theory helps identify effective pathways for improving living standards globally.