Federal Debt and U.S. Growth: I Think the Intelligent Simon van Norden Is Slightly Off...

Simon writes:

Worthwhile Canadian Initiative: Ninety percent worries: With this and other data, Rogoff and Reinhart document that, historically, there is not much of a relationship between government indebtedness and growth except for the over 90% of GDP group. For debt loads up there, growth seems quite a bit lower...

The problem is that the United States debt-to-GDP ratio got above 90% once and only once--at the end of World War II.

And then World War II ended, and we...