The Public Expenditure Tracking in Survey (PETS) is widely used to study the flow of funds and other resources with the aim of determining how much of government investment reaches the classroom.

UNESCO: Accountability

We have two models for a flow out of the wellhead that were done by our Flow Rate Technical Group under Marcia McNutt of the U.S. Geological Survey.

WHITEHOUSE: Daily Press Briefing

Total household disposable income in 2008 is estimated to be Rmb23.2 tn, Rmb9.3 tn higher than the Rmb14 tn calculated based on the official NBS household income survey and Rmb5.4 tn higher than the Rmb17.9 tn total calculated by the Flow of Funds (FOF) accounts in the Economic Census This Rmb5.4 tn is referred to as grey income.

FORBES: The Chinese Have $1.5 Trillion In Hidden Income