QUESTION: Read the below paragraph and summarize it?

Links to industry analysis. Within-industry differences in performance are often larger than differences across industries, but it would be wrong to conclude that industry analysis is unimportant. Industry analysis is crucial to creating competitive advantage for several reasons. First, companies that generate competitive advantages typically do so by devising strategies that neutralize the unattractive features of their industries and exploit the attractive features. Second, industry conditions appear to have a large influence on whether competitive advantages are even possible.7 In some industries (e.g., computer leasing), conditions strait-jacket firms and leave them little room to establish a superior wedge between willingness to pay and costs. In other industries (e.g., prepackaged software), conditions permit the most effective firms to enjoy large advantages over the least. Finally, market leaders often face a tension between managing industry structure and pursuing an advantage within that structure. When deciding whether to build a new aluminum smelter, for instance, Alcoa must consider the impact of the new capacity on industry supply-demand conditions, not just its effect on Alcoas competitive advantage. This is true not only because Alcoa is a large player in the business, but also because Alcoa is closely tracked by its rivals. Analysis and creativity. This note takes an analytical approach to competitive advantage. In actuality, many of the greatest advantages come not from analysis, but from entrepreneurial insight and trial-and-error. The cold, hard analysis described here is not intended to deny the importance of insight and trial-and-error. Rather, it aims to guide entrepreneurial creativity and to set a battery of tests for new business ideas.

QUESTION:: Read the below paragraph and summarize it?