inevitably imperfect

朝からPower System Economicsなるマニアックな本（でも一応教科書）を読んでいたら、印象的なquoteを見つけたので転載。

The conclusion today, seventeen years later, is essentially the same . . . industries differ one from the other, and the optimal mix of institutional arrangements for any one of them cannot be decided on the basis of ideology alone. The "central institutional issue of public utility regulation" remains . . . finding the best possible mix of inevitably imperfect regulation and inevitable imperfect competition.

Alfred E. Kahn

public utility regulationに限らず、幅広く妥当する卓見かと。

Maxwell School, Syracuse, Mar 31, 10:16