 Already in the late 1980s, some common services once set up to capture economies of scale, such as the Property Services Agency and the Crown Suppliers, were being dismantled or sold off.Next, shortly after Thatcher left office, in July 1991, a new programme of market-testing of central government services began, with the White Paper "Competing for Quality" (Cm 1730).Five-yearly or three-yearly policy and finance reviews of all agencies and other public bodies were instituted, where the first question to be answered (the "prior options exercise") was why the function should not be abolished or privatised.