When the world economy boomed or seemed to boom in the initial years of this century, inflation grew largely. The share markets forgot what a bear is and there was euphoria all round. This sensitive index led to the severe increase of house prices.

These prices were effective both ways and even the evaluation of such houses was done on a grand scale. Even normal locations were projected as primetime. That led to many banks allowing good loans on the houses as the house price was great enough as a corollary.

When the bubble burst, reality sunk in. In a jolt, prices cane down disastrously. There was sudden seeming shortage of money and there were quite a few defaulters of loans.

Banks could not take a legal step against defaulters as they had the corollary in hand, only the prices of the houses were far under-written than the loans provided. Many banks collapsed and with them, the economy. Subprime crisis had started.