A drop in the stock market has increased adverse selection and moral hazards because it has resulted in a weakening of the market value of firms' net worth, so lenders are less eager to lend, as deficits from loans are likely to be acute. This decline in lending has then triggered investment and aggregate yield to decline. Also, the waning corporate net worth has increased moral hazard inducements for companies to make risky investments because they now have less to lose. Again this increase in moral hazard makes lending less attractive.
The failure of financial institutions in the mortgage debacle, together with the drop in the stock market has led to uncertainty in financial markets. It is more difficult to determine good from bad credit, which again has resulted to a fall in lending, investment and cumulative activity.
The source of the current bank panic therefore, is asymmetric information. The result is that loan funds have been reduced and the price of intermediation has risen, which has caused a drop in investment and a decline in aggregate economic activity (Mishkin). ...Show more