Cost Accounting: Predatory Pricing

Read the attached article on Pharmaceutical pricing tactics. How do companies manage their ethical obligations with their obligations to their shareholders? A popular argument cited in this article is that high drugs costs are necessary to cover the costs of research, and to allow for the development of new drugs, do you buy this argument? Is there evidence to support it? How does this pricing tactic compare to the concept of price discrimination, peak-load pricing, collusive pricing? What are YOUR thoughts and opinions about the article?

I need 1.5-2 pages single spacing

It is not a paper i do not need cover page and references just go straight to the writeup.