As the 2008–2009 financial crisis unfolded, one major U.S. bank had a leverage ratio of 54

As the 2008–2009 financial crisis unfolded, one major U.S. bank had a leverage ratio of 54. In Canada regulators put a ceiling on bank leverage ratios of 20. Compare the change in asset values that would push the capital in the U.S. bank to zero with the change required to eliminate capital in a Canadian bank at the ceiling-leverage ratio. What is the implication of the differences in maximum leverage ratios for the stability of the banking system?