Please answer questions with 50 words or more.

1. All else constant, explain why the present value decreases as the discount rate increases.

2. How is the difference between an ordinary annuity and an annuity due affect the PV and FV of two otherwise identical annuities?

3. Click on the link: finance.yahoo.com, and go to the link of“Composite Bond Yields.” Yahoo Finance provides a listing of "current" (today) and previous day yields for U.S. Treasury securities by varying maturities, yesterday's closing yields, and the change from yesterday. Also Corporate, and Municipal bond yields are provided for varying maturities.

What does U.S. Treasury yield provided forecast about the future direction of interest rates? How do the yield of the other bonds (corporate, and municipal) compare with the yield of U.S. Treasury securities?
What is the trend in spreads between U.S. Treasuries and Corporate bonds of similar maturites? Is the Treasury/Corporate bond spreads "widening" or "closing"?
What is the current trend in long-term Treasury bond yields? What economic factors tend to influence long-term interest rates (list at least 2)?