http://www.economist.com/news/leaders/21719799-it-time-recognise-value-bit-hassle-case-efficiency-tax
ʂ̃TCgɃWv悤ƂĂ܂BXΏL̃NNbNĂ
UPLIFTōLȂő̌܂傤IKȉ{Ct܂I