Treasury Select CommitteeGuest UserJanuary 25, 2011Office of the Rt Hon. Andrea Leadsom MPTSC, Treasury Select Committee, tax policy, Office of Tax Simplification, Mirrlees Review, Institute for Fiscal Studies, taxes Principles of Tax Policy Treasury Select CommitteeGuest UserJanuary 25, 2011Office of the Rt Hon. Andrea Leadsom MPTSC, Treasury Select Committee, tax policy, Office of Tax Simplification, Mirrlees Review, Institute for Fiscal Studies, taxes