Answer and Explanation:
The computation of the confidence index this year and last year is shown below:
As we know that
Confidence index is
= Yield on top-rated corporate bonds ÷ Yield on intermediate-grade corporate bonds
For This year, it is
= 4.9% ÷ 6.9%
= 0.710
And, for the Last Year, it is
= 7.9% ÷ 9.9%
= 0.7979
We simply applied the above formula