canadiananalyst

I agree with bpdulog. If we aren't given numbers to use in a calculation, then we can only look at the direction of the changes. So here are the 4 possibilities:
1. Interest rate increase + convenience yield increase = no change
2. Interest rate increase + convenience yield decrease= increase in roll yield
3. Interest rate decrease + convenience yield increase = decrease in roll yield
4. Interest rate decrease + convenience yield decrease = no change