Read these articles about price collusion. What do you think about firms colluding on prices? What is the government's role in dealing with such firms? Should the government get involved or should it just allow firms to behave as they want? What can the government do to prevent this from happening in the future?

https://www.reuters.com/article/us-usa-generics/u-s-states-allege-broad-generic-drug-price-fixing-collusion-idUSKBN1D0201

http://www.nytimes.com/2013/09/27/business/9-auto-parts-makers-plead-guilty-to-fixing-prices.html

http://www.dispatch.com/news/20150322/massive-price-fixing-among-auto-parts-manufacturers-hurt-us-car-buyers