Write a brief essay (500 ± 50 words) that summarises the article of “small worlds” and critically evaluates the article’s main contribution. By critically evaluating a contribution, you are expected to answer questions such as: What is the main contribution? Is it a scientifically motivated contribution? Is the contribution controversial (i.e. can you think of other explanations)? Etcetera.
Inside the essay, you should answer the following specific questions (mark the essence of your answers in boldface):
-What is the small world phenomenon?
-What is the advantage of knowing a network’s characteristic path length?
-What is the advantage of knowing a network’s clustering coefficient?