Research here will be difficult. Stiglitz notes (p. 115) "The IMF holds that transparency could undermine its effectiveness..."
John Wilton (on Berkeley Endowment mngmt co board) is also Vice Chancellor at UCB of Administration and Finance, meaning he's in charge of 'Operational Excellence', the late cuts program. He was CFO at World Bank for over 2 decades, worked in Bulgaria & Indonesia in 80s & 90s.
Would be interesting to see World Bank's educational / privatization policies in those countries under his tenure, but that data is harder to find.