US “nonfinancial” corporate debt – this excludes debt by banks and by businesses that are not incorporated – rose to a record $15.2 trillion in the fourth quarter, according to data released by the Bank for International Settlements last week. To show how much of a burden this debt is, how it compares to other countries, and to eliminate the effects of inflation, the BIS also expresses this debt as a percent of nominal GDP. Given the growth of GDP in Q4, the ratio of corporate debt to GDP, at 74.4%,