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Governments, which often offer their workers DB pensions, have been far slower than the corporate sector in attempting to reduce the cost. In large part this is because of the way they account for pensions. In America they are allowed to assume a return of 7.5-8% on their investments, making deficits look a lot smaller. But generous accounting assumptions do not make the problem go away. The Centre for Retirement Research (CRR) at Boston College has looked at around 4,000 American state and local-government pension plans. Even using the accounting standards permitted, the plans were on average 72% funded at the end of 2015. On a more conservative 4% discount rate, this drops to 45%. On the former basis, the collective deficit is $1.2 trillion; on the latter $4.1 trillion.