TY - BOOK TI - Countering harmful tax practices more effectively, taking into account transparency and substance, action 5 - 215 final report PY - 2015/// CY - ParisFR PB - OECD KW - TAXATION N2 - Revamps the work on harmful taxt practices with a priority on improving transparency, incuding compulsory spontaneous exchange on rulings related to preferential regimes, and on requiring stanstantial activity for any preferenctial regime ER -