How the definition of liquidity itself has changed with liquidity not thought of in terms of assets based concept bu in terms of credit availability for both companies and households. The conversion of nonmarketable assets into marketable assets by securitization has even further eroded this idea of liquidity. With technology, internet and globalized trading the marketable securities with prices create the idea of a liquid asset and create the false belief that credit is easily available and promote risktaking. Quantitative models and computerized trading create the idea that everything is working fine when actually the quantitative models are not good at incorporating risks in the global environment (political, terrorism etc), and not good at pricing securities especially lower quality securities such as the ones that collapsed in the subprime mortgage market. With these structural changes more crises can be expected as the problems they can create such as excessive risktaking are not going to be fixed unless some new comprehensive approach is developed and there is nothing like this in sight. Financial institutions always face the pressures to ignore better judgement and reason in favor of the false security of quantitative risk models because bonuses and higher profits, underperforming earnings and stock price, market share, all these are at stake. So most finacial institutions will opt to join the bandwagon of aggressive lending and investing. The speed with which this subprime crisis reached Europe through the securities carried by European banks and otther financial institutions shows how global trading and computerized models can now affect all global areas quickly. In fact the ECB was early in its response to inject liquidity into the markets in Europe. Kaufman is not happy with the idea that the Fed should be side tracked by these developments from following its own role in ensuring price stability and controlling inflation, or that the Fed should not let market discipline so essential for free markets to operate. The solution in the meantime will involve some dose of regulation and some dose of market discipline....