and production of financial innovation. We use machine learning to identify the financial patents and extensively audit … the results to ensure their reasonableness. We find that patented financial innovation is substantial and economically … financial sector, which collectively accounted for 69% of the awards. The location of innovation has shifted, with banks moving …

innovation. We identify significant patents based on textual similarity of a given patent to previous and subsequent work: these … aggregate, sectoral, and firm level. Our technology indices span two centuries (1840-2010) and cover innovation by private and …

We propose a new measure of the economic importance of each innovation. Our measure uses newly collected data on … our measure suggests that technological innovation accounts for significant medium-run fluctuations in aggregate economic …