PIMCO | Investment Outlook - Strawberry Fields – Forever?: "knock a few percentage points off the deficit/GDP ratio, they claim, and the private sector will miraculously reappear to fill the gap. No such luck after 2–3 years of austerity in Euroland, however. Most of those countries are mired in recession and/or depression. Political leaders there should have studied the historical evidence presented by Carmen Reinhart and Ken Rogoff in a critically important paper titled, “Growth in a Time of Debt.” They conclude that for the past 200 years, once a country exceeded a 90% debt/GDP ratio, economic growth slowed by nearly 2% for both developed and developing nations for an average duration of nearly a decade. Their work displayed below in Chart 1 shows the result in the United States from 1790–2009. The average annual U.S. GDP rate growth, while clearly influenced by the Great Depression, was -1.8% once the 90% barrier was exceeded. The U.S., by the way, is now at a 100% debt/GDP ratio on the basis of the authors’ standard measuring yardstick. (Note as well the 5½% average inflation rate during the same periods.)"
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