Many studies rely on patent citations to measure intellectual heritage and impact. In this
article, we show that the nature of patent citations has changed dramatically in recent years …

This paper presents an easy-to-use measure of patent scope that is grounded both in patent
law and in the practices of patent attorneys. We validate our measure by showing both that …

Using a newly assembled data set of US patents, we show that innovation activity is less
concentrated in high-density locations than commonly believed. Yet, inventions based on …

According to surveys, the top 10% of patents are worth more than a thousand times as much
as the bottom 10%. This isn't surprising since a patent's value derives from its ability to …

The following gives a brief overview of the main themes of the thesis. The goals of the thesis
were to explore patent quality and value the effect of competition on patent quality and …

Using a newly assembled dataset of US patents, we show that overall innovation activity is
less concentrated in high-density urban areas than commonly believed, but inventions …

The first chapter of this dissertation, which is joint work with Ruben Gaetani, analyzes the
effect of the rise of knowledge-based activities on spatial inequality within US cities …