The OECD has recently come to recognize that the transfer pricing system does not work as intended. In its report on base erosion and profit shifting 2013 WTD 140-17: Other Administrative Documents, the OECD recognizes that BEPS results in revenue losses that affect all states, especially poorer ones; that systematic tax avoidance by the richest and most powerful companies in the world undermines the general legitimacy of taxation; that it gives MNEs significant competitive advantages over purely domestic firms, resulting in inefficient allocations of investment and major distortions to economic activity; and that it skews the decisions of the MNEs themselves, resulting in overall economic welfare losses.
Avi-Yonah, Reuven S. "Back from the Dead: Reviving Transfer Pricing Enforcement." Tax Notes Int'l 73, no. 1 (2014): 10-3.