E economical rentable Economists observed in early 2015 that as shale oil is relatively expensive to extract, it requires oil prices of around $70 a barrel to be economical. editor directeur de rédaction, rédacteur en chef Russia watchers say that the resignation in May 2016 of Maxim Solyus, editor of the newspaper published by the Russian media outlet RBC, can be put down to the newspaper's probing into a number of business affairs involving people close to President Putin. effective efficace The State Department said that president Obama would veto a Senate bill passed in February 2016 to rename the Chinese Embassy address after the jailed dissident Liu Xiabo, adding that changing the name would not be effective in encouraging China to respect human rights. embed intégrer, insérer Public Citizen, a US advocacy group, worries that a number of investor-state dispute rules being embedded in international trade treaties will enable foreign corporations to bypass domestic courts. 51