The amount of financial assets and liabilities held by government has significant political and economic importance. The assets reflect a source of additional income available to government and a source of funds that it can draw on without necessarily increasing liabilities, for example as an additional lever to protect its currency when money markets exert prohibitive upward pressure on bond yields say. The liabilities reflect the debts accumulated by government and, so, provide an indication of the structural nature of debt interest payments (which add to government deficit). This matters because, in general, the higher the liabilities the higher the perceived risk of default (and therefore the higher the risk premium required by the market). Typically, this cycle can eventually force governments to either cut spending or raise taxes. General government gross debt’s importance, and, in particular, the importance of sustainable levels of debt, is reflected in the European Maastricht criteria, where it is one of the two measures referred to in the Excessive Deficit Procedure.