english: It has more to do with changing supply and demand for skill, the race between education and technology, globalization, probably more unequal access to skills in the U.S., where you have very good, very top universities but where the bottom part of the educational system is not as good, so very unequal access to skills, and also an unprecedented rise of top managerial compensation of the United States, which is difficult to account for just on the basis of education.
non_english: Gre bolj za spremembo v ponudbi in povpraševanju za veščinami, za tekmo med  izobrazbo in tehnologijo, globalizacijo, verjetno bolj neenak dostop do veščin v ZDA, kjer so zelo dobre, vrhunske univerze, a kjer dno izobraževalnega sistema ni tako dobro, zato je dostop do veščin neenak. Poleg tega pa prihaja do nezaslišane rasti plač najvišjih menedžerjev v ZDA, kar je težko upravičiti samo na podlagi izobrazbe.