For the second year in a row, Arizona State University researchers have found no evidence that the Super Bowl triggers a spike in commercial sex sales, contradicting claims often asserted by police and politicians.

However, it did find that the online market for prostitution, potentially involving sex-trafficking victims, may be on the rise overall.

For years, the prevailing wisdom has been that any large-scale event that draws men, alcohol and disposable income will be a magnet for prostitution and sex trafficking. But researchers say the local sex market is pervasive every day of the year.

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