But there is another, very different way to use that $1 billion. You can dangle a reward if the rocket company meets some target—say, the construction of three new rockets. As opposed to push funding, this is called pull funding. If push funding pays for effort, pull funding pays for success.72 Warp Speed used both. With push funding, it covered the early expenses of several vaccine makers. With pull funding, it promised to buy a certain number of vaccine doses, provided that the therapies received FDA authorization.
