In my opinion when the fed lowers rates, the banks spur on lending, a lot of this is speculative, it gets bid up continuously until it deaccelerates and then there comes a point when there are more repayments than lending, because banks are not as willing to lend for the buying of assets that have slowed down in their price, and people are less willing to take a loan for the same reason, which means that the money supply gets decreased and particularly affects that area of the economy, which causes a vicious cycle of prices falling in that sector and at the same time this causing less lending and more net repayment of loans, which further accelerates the
vicious cycle of prices falling.