Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
We present a model-based measure of sovereign credit ratings derived solely from the fiscal position of a country: a forecast of its future debt liabilities, and its potential to use fiscal policy to repay these. We use this measure to calculate credit ratings for 14 European countries over the period 1995–2012. This measure identifies a European sovereign debt crisis almost two years before the official ratings of the credit rating agencies.