More specifically, the report from Epicenter.works shows that in European markets without zero-rating in 2014 and 2015, wireless pricing declined 8% the next year. Pricing in European markets with zero-rated offers in 2014 but not 2015 saw wireless data prices decline 10% the next year. But European markets with zero-rating offers in both 2014 and 2015 saw prices rise 2% the next year (see image on top of the article).
Of course, with the return of unlimited data plans, zero-rated programs are no longer as attractive as they once were. And while the current absence of net neutrality rules allow wireless providers to bring back zero-rated programs, the report from Epicenter.works indicates that if these programs do return, wireless subscribers will be paying more for their wireless service not too long afterwards.