LRB and other publications of that caliber receive enough submissions in their preferred style so as to only require light use of [sic] for errors. LRB letter w

LRB and other publications of that caliber receive enough submissions in their preferred style so as to only require light use of [sic] for errors. LRB letter writers are highly motivated to have their words be selected for publication. The Economist wishes to publish from a wider set of contributors and its house style is harder for that group to imitate.