The biggest difference I noticed is that leading up to the GFC interest rates were very high, I think the cash rate was like 6%, through loosening MP they lowered it to like 3% in a short time frame. This increased AD and with the fiscal stimulus package they both were very effective. This is different for covid because our interest rate was very low to begin with due to low eco growth in the last few years, so MP could not be used to stimulate AD (it could a little but not 3% interest rate cut) which is also why the fiscal stimulus is bigger now than during GFC and we still have a recession. Because MP can't be used effectively anymore is also why I think unemployment increased so much because interest rates can't be decreased further.