Courtesy ceejayoz below: https://news.ycombinator.com/item?id=12340464
it is primarily to avoid redundancies
In this case there was a competitor, but they recently had their product pulled from the market in an FDA recall. So Mylan decided: why not raise the price 600% (and rising) when it's a drug people HAVE to have.
Capitalism in action baby. Let's deregulate EVERYTHING!
It's not worth it for a company to develop their own Epi-pen since profits are so low. Eventually enough drop out that one manufacturer raises the price. Significant profits result which attracts other competitors. Prices drop.
Would you just prefer the gov't to step in and set the price? What happens if companies decide it's not worth the effort? Have the gov't force them to produce the product?
Cut out the private market and have the government manufacture it directly.