A few weeks ago, we got an e-mail from a reader Vishal Dosanjh, who lives in St. Louis:

My daughter asked me this morning why the fancy neighborhoods are the best places to go trick-or-treating. It puzzled me for a moment and then realized it was an economic question. I gave her an answer about disposable income and societal expectations. Anyway I thought it might be up your alley, and I wonder if it’s even true. Do wealthy neighborhoods/people actually give out better candy? She’s 8 by the way.

We set out to answer Vishal’s question in our latest Freakonomics Radio on Marketplace podcast.