NEW YORK – The Greek financial saga is the tip of an iceberg of problems of public-debt sustainability for many advanced economies, and not only the so-called PIIGS (Portugal, Italy, Ireland, Greece, and Spain). Indeed, the OECD now estimates that public debt-to-GDP ratios in advanced economies will rise to an average of around 100% of GDP. The International Monetary Fund has recently put out similar estimates.
Within the PIIGS, the problems are not just excessive public deficits and debt ratios (in different degrees and measures in the five countries). They are also problems of external deficits, loss of competitiveness, and thus of anemic growth.