假定金融体制经历了一场巨大变化。人们能够从其储蓄账户中开出支票。货币需求会发生什么变化?货币总量是否需要重新定义? Assume that the financial system undergoes substantial changes and that people become able to draw checks on their saring deposits. What would happen to money demand?Would there be a case for redefining the monetary aggregates?