This summer, Marketplace’s Wealth and Poverty team opened a bureau of its own — not in a large city like Chicago or Atlanta, but in a neighborhood called Highland Park that’s about 10 miles north of Marketplace HQ in Los Angeles.

Unless you’ve lived in LA, you’ve probably never heard of it, but you probably have your own Highland Park. It’s a working-class neighborhood that became popular, fast. People with money started in, new businesses started opening up, and everything started to change.

That whole process, and why it happens, isn’t new, but we want to know how does it happen?