peculative bubbles and crashes a Economists say that a financial asset (stock, for example) exhibits a bubble when its price exceeds the value of the future income(such as interest or dividends) that would be received by owning it to maturitySpeculative bubbles and crashes  Economists say that a financial asset (stock, for example) exhibits a bubble when its price exceeds the value of the future income (such as interest or dividends) that would be received by owning it to maturity