Unsustainable in example sentence
The answer is to emulate the response to sovereign-debt crises in Uruguay, Pakistan, Ukraine, and many other emerging-market economies, where orderly exchange of old debt for new debt had three features: an identical face value (so-called “par” bonds); a long maturity (20-30 years); and interest set well below the currently unsustainable market rates – and close to or below the original coupon.