US Treasury Secretary Jack Lew has called on the IMF to play a more aggressive role in “policing exchange rate fluctuations, global imbalances and its members’ failures to live up to commitments to boost ailing global demand,” the FT reports (paywall). In a speech to the Council on Foreign Relations, Lew said it the fund needed to “intensify scrutiny of critical issues like exchange rates, current account imbalances, and shortfalls in global aggregate demand” and demanding “greater transparency” about members’ economic data, especially foreign reserves.