Response to the following questions:
1. How is duration related to the interest elasticity of a fixed income security? What is the relationship between duration and the price of the fixed-income security?
2. If you use duration only to immunize your portfolio, what three factors affect changes in an FI's net worth when interest rates change?
3. If interest rates rise and an investor holds a bond for a time longer than the duration, will the return earned exceed or fall short of the original required rate of return?
If possible, please give examples to better understand your response.