Description: The yield rate is that effective rate of interest at which the present value of his expenditures is equal to the present value of his returns. This paper encourages students of Theory of Interest class to try to approach yield rate problems by starting with the definition of yield found in Steve Kellison's text.

Description: While we agree with the conclusions expressed by Silver and Hedges The Classical Definition of Compound Interest is Adequate by Murray Silver and Bob Hedges, ARCH 1981.2, we do not believe the theorem follows from the stated Axiom. We present an alternative proof which uses only the accumulation function and not the force of interest.