Perfect Competition may be defined as many small firms manufactures and supplies the same goods (or perfect substitute) to the end-user while Monopolistic Competition is type of market where there are a handful of sellers offer a particular product leading to minimal competition, however, variants and quality of products offered by each seller are slightly different.

Limitations of Sovereignty - The idea of sovereignty of the state exists more affection than in reality. The fact is that no state, regardless of its powers, can do whatever it likes because its sovereignty is limited in many ways.