For those complaining that the study is bogus or exaggerated, here's a more believable anecdote with a similar implication, recounted by the Freakonomics author

For those complaining that the study is bogus or exaggerated, here's a more believable anecdote with a similar implication, recounted by the Freakonomics authors: What the Bagel Man Saw (2004): https://news.ycombinator.com/item?id=28327228 https://news.ycombinator.com/item?id=28327228