A frequently made claim in the innovation literature is that important inventions involve the transfer of new knowledge from one technological domain to another. This study uses U.S. patents granted from 1976-2006 to identify the role of knowledge acquired from outside each patent’s...

We conduct a sensitivity analysis to describe conditions under which liquid fuel producers would fund the development of a climate backstop. We estimate (1) the cost to develop competitively priced direct CO₂ air capture technology, a possible climate backstop and (2) the effect of this...