The Greenspan put was a death defying act that can only be done once. They are trying to do it again. It will not work. New ballgame.
It wouldn't have worked in the first place if China did over pay for our long bonds. They did this to prop up our dollar, so the American consumer, would buy their products. They could have never jump started their economy if it wasn't for the American consumer.
This - meaning overpaying our long treasuries - had the effect of making the long mortgage rates low for a long period of time or if you will created a flat or inverted yield curve. Most look to the Greenspan put as causing the low long rates and that was part of the reason. But, Asia - China and Japan too for that matter - kept buying the bonds it was to their advantage to keep our dollar fairly strong. Those two economies at least in the last decade or two depend on the American consumer.
So, the normal conforming type of borrower, the ones who had full docs loans, verified income, all that stuff had their homes for a long time, bought new homes, refinanced, or took cash out or whatever. But, one thing they all did and I'm one of them, is took out 30 year fixed rate loans at about 5.50 to 5.75 percent. You've got level payments for ever. They (I personally) don't care if the value goes up or down. They (I personally) am going to live my home for a long time. This market dried up.
Financial isntitutions were sitting on tons of liquidity lost the best borrowers. They refinanced and they were done at their low fixed rates for the rest of their lives - a lot of them will retire with their mortgages, because they can make more of a return than what they could invest than if they paid off their mortgages with cash.
So what did the financial industry do? They created a new market. They call it subprime. But, its not all sub prime borrowers - mark my words this will come out later. It is ordinary people who bought homes they could not afford and didn't understand the terms of the mortgages they were getting into. And I'll skip a couple of steps - as it is well chronicled - the bubble burst. But, that's just part of it.
Now China is holds a trillion dollars of our long treasuries, that they over paid for. That means they hold the paper in a little over 10 percent of our national debt. And they are uncomfortable with it. Wouldn't you be? They want to diversify their holdings. They've said as much. But, it is not to their or anyone's advantage to dump billions of treasuries. But, they are not going to buy a trillion more. That I can assure you. As a result the Fed cutting the short term rates at a rapid pace will not create the liquidity many expect. It will just flood the market with dollars and there will be less demand to buy the dollars. Less demand means more supply. More supply means lower prices for Treasuries. Lower prices for Treasuries means higher rates for Treasuries. Inflation could become a problem
So it is not the housing crash that really caused the problem. The housing crash is a symptom. The problem is our economy both the government and the American consumer is in debt to the gills.
So the Fed cuts will have an effect. But, it will not be the same effect as the Greenspan put.