ABNâs should be executed when: 1  Tests(s) are deemed by the NCD policy as not medically necessary. 2  Screening test(s) that are part of a routine examination where the patient shows no signs nor symptoms of disease. 3  Test(s) that exceed the NCC frequency limits.
Under rules governing municipal bonds, callable premium bonds must be priced to the date resulting in the worst (lowest) yield for the investor. Generally this means that the bonds are priced to the first call date. This is attractive to investors because, in the event the bonds are not called, the yield to maturity will be much higher. Furthermore, in a rising rate environment, premium bonds retain their value better than par or discount bonds.
Average Cumulative Default Rates on Moodyâs-rated Corporate Bonds 1970-2009. Overall, municipal bonds have a safety record second only to the US government. It is helpful to know the big picture in terms of past default rates. In the future, the default risk might be higher than in years past.