It is nice to see an actual economic study on the subject.
While net neutrality sounds nice it is important to remember that it is being pushed by companies like Google that already own their own private global networks to which net neutrality rules do not apply.
If Google can prevent the other owners of national/global networks from giving preferential treatment to their potential competitors then they can exploit the competitive advantage of owning their own global network to which those rules do not apply to prevent competition.
While net neutrality sounds nice it is important to remember that it is being pushed by companies like Google that already own their own private global networks to which net neutrality rules do not apply.
If Google can prevent the other owners of national/global networks from giving preferential treatment to their potential competitors then they can exploit the competitive advantage of owning their own global network to which those rules do not apply to prevent competition.