Large firms generate most American inventions. We know that cities are host to organizations of varying size and prevalence, but are these conditions important to urban system dynamics? This article presents volatility in patenting as a novel instrument for distinguishing between cities reliant...

Entrepreneurial ecosystem measures should combine archival civic and self-reported entrepreneur data. This combination helps to overcome the limitations of aggregated archival data that affect our collective capacity to derive actionable insights for research and policy. Previous measurement...