References for "make capital market segments more efficient"

Re: "Their intended function is to ... make those segments of the capital market more efficient..." Is there any reference giving an argument that GSEs make some segments of the capital market more efficient?

If not I will remove this assertion. --Russell Melaxant 15:30, 4 July 2018 (UTC) — Preceding unsigned comment added by Mcamp@cinci.rr.com (talkcontribs)

The article says that it is "their intended function", not that they really "make some segments of the capital market more efficient". The aim of creating the GSEs is explained in this source: https://fas.org/sgp/crs/misc/RS21663.pdf Enivid (talk) 14:26, 8 July 2018 (UTC)