Portuguese interest rates haven’t come down. Because of the Greek crisis, bond yields rose to dangerous levels in several financially troubled European countries. Then after Greece was bailed out, yields fell in most of them. In Italy, yields on bonds with maturities of around 10 years dropped from more than 7.2% to around 5%; in Spain, from 6.7% to 5.4%; and in Ireland, from 9.7% to 6.9%. The notable exception was Portugal, where bond yields came down a bit but still remain above 12%. Double-digit borrowing costs are impossible for a heavily indebted country to sustain for any significant period of time. Yet Portugal’s bond yields have been above 10% for the past nine months.