Today, the Bay Area is home to the most successful knowledge economy in America, while Los Angeles has fallen progressively further behind its neighbor to the north and a number of other American metropolises. Yet, in 1970, experts would have predicted that L.A. would outpace San Francisco in...

Today, the Bay Area is home to the most successful knowledge economy in America, while Los Angeles has fallen progressively further behind its neighbor to the north and a number of other American metropolises. Yet, in 1970, experts would have predicted that L.A. would outpace San Francisco in...

Despite academic scepticism, cluster policies remain popular with policymakers. This paper evaluates the causal impact of a flagship UK technology cluster programme. I build a simple framework and identify effects using difference-in-differences and synthetic controls on rich microdata. I...