leakage The process of diverting money away from the multiple expansion of demand deposits through such behavior as hiding money under a mattress. Related Related Articles: COP26 Flawed Emissions DataWhy the Upside of Plastics Is Its DownsideSuper Bowl SpendingWhy Super Bowl LII Won’t Be a Financial BonanzaThe Gift You Didn’t Want Ann Mills Share This Previous Articlegross national product (GNP) Next ArticleM2 December 17, 2020