There are many theories that have been propounded in the study of international relations. These theories actually provide a perspective in which to see international relations. Out of these theories, the most popular are realism, liberalism and constructivism. We will, in this article confine ourselves to liberalism and constructivism and try to explain the differences between these theories by highlighting their features.
This theory of international relations arose primarily after World War I as it dawned upon analysts that there was an urgent need to regulate international relations so as to limit the number of wars ...