Foundation, and the New York Community Trust. ITEP also accepts individual donations. Political stance ITEP's quantitative analyses are utilized by observers from across the political spectrum and by analysts within government. ITEP, as well as the associated Citizens for Tax Justice, has been characterized as liberal. The ITEP Microsimulation Tax Model Many of ITEP's analyses rely on the ITEP Microsimulation Tax Model. The ITEP model is a computer program capable of estimating the revenue yield and distribution of federal, state, and local taxes, as well as proposed changes to those taxes. According to ITEP, its model "relies on one of the largest databases of tax returns and supplementary data in existence, encompassing close to three quarters of a million records." Three similar microsimulation models are used by the Joint Committee on Taxation, the U.S. Treasury Department, and the Congressional Budget Office. The ITEP model, however, stands apart from each of these in that it adds state-by-state estimating capabilities. The Urban-Brookings Tax Policy Center and the Tax Foundation have also built their own tax models. Tax haven research An ITEP report which attracts worldwide media attention is the Offshore Shell Games: The Use of Offshore Tax Havens by Fortune 500 Companies report. ITEP jointly fund the report with the U.S. Public Interest Research Group ("PRIG"), Education Fund. The report adopts a purely quantitative approach and calculates the scale of involvement by leading U.S. multinationals with tax havens by conducting analysis on their SEC 10-K and 10-Q filings. The latest report was in 2017 and it ranks tax havens by two different type of quantitative calculations, based on 2012-2015 10-K and 10-Q filings: ITEP's ranking of tax havens matches with other academic rankings of tax havens, for example: Note that the above two academic studies example global corporate activity, and not just Fortune 500 Companies. However, as noted in the academic literature, most corporate tax avoidance and BEPS strategies are executed by U.S. multinationals ("MNCs"), and the BEPS strategies used by all global MNCs have similarities, thus using similar havens. ITEP 2017 tax haven list (by quantum of connections) The ten largest tax havens from the ITEP 2017 report, ranked by the percentage of Fortune 500 Companies with subsidiaries in the tax haven: (*) Identified as one of the largest 10 corporate tax havens by Gabriel Zucman in 2018 (Cayman and the British Virgin Islands appear as Caribbean). (†) Identified as one