The idea that big cities boost business efficiency is not new. However, the specific impact of crowded urban areas on the productivity of businesses within them is less clear. This is a gap that needs filling. It is time to explore how the sheer number of people in a city affects the overall productivity of companies. This is not just about having more workers. ...

Let's zoom in on the Xi'an metropolitan area in western China. From 2010 to 2020, researchers noticed an interesting pattern: the city's population clustering first went up, then came down. This was a bit different from other cities like Nanjing or Wuhan, which had higher clustering. All these cities were checked using some smart tools like kernel density estimation ...