Once upon a time there were pharmaceutical firms that invested mostly in internal R+D departments. Long time ago, the door was opened to contracting out, buying patents and licensing. The most recent step is to the acquisition of firms with promising molecules.
A short article in Nature sheds some light about the efficiency of recent mergers and acquisitions. And the summary is:
Our analysis suggests that most companies have a considerable opportunity to get better at deploying capital and resources efficiently when sourcing innovation externally. In our experience, we have found that the best performers develop robust forecasts for the key assets, are fiscally disciplined, and set up their innovation-sourcing teams and transaction capabilities to ensure that the right internal expertise is brought to bear and to ensure smooth hand‑offs through the life cycle of a deal.The success lies within, the internal expertise is crucial. Have a look at the figure and you'll notice that the most efficient (defined as the commercial impact of the products acquired relative to capital deployed in M&As) is Roche. This is not by chance.
PS. Unfortunately, the study doesn't reflects any consideration to value in health or lobbying efforts in drug prices.
PS. FT's summer books 2015
