High Quality Content by WIKIPEDIA articles! Financial Fragility is the vulnerability of a financial system to a financial crisis. Franklin Allen and Douglas Gale define financial fragility as the degree to which "...small shocks have disproportionately large effects." Roger Lagunoff and Stacey Schreft write, "In macroeconomics, the term "financial fragility" is used...to refer to a financial system`s susceptibility to large-scale financial crises caused by small, routine economic shocks."