Go the Federal Reserve Bank of Saint Louis website at fred.stlouisfed.org and get the latest rates of 10-year T-bills and AAA and BAA rate corporate bonds using the following steps.

Go to the Federal Reserve Bank of Saint Louis website at fred.stlouisfed.org. Search for "10-year Treasury Constant Maturity Rate." Choose monthly data. This will bring the file onto your computer that contains the relevant data. Search for "AAA Corporate" and then on "BAA," choose monthly data. This will bring the file onto your computer that contains the relevant data.

Calculate the current spread of AAA and BAA rated bonds over the 10-year Treasury bond rate. How have these spreads changed over the last two years?