The drug company GlaxoSmithKline employs 12,687 people in its research and development division to search for and test new drugs. Despite that huge staff, around half of the company's $6.3 billion R&D budget goes to people who don't work for Glaxo at all.
The money instead flows to companies like Epizyme, a small biotechnology firm that, since last year, has received $24 million from Glaxo to support research on a novel type of cancer drug. That's money the biotech firm needs to survive, and if its efforts yield a drug, that would be a success for Glaxo, too.