The price of the asset condition Such as real estate or other investment increased more than the actual price. The artificial demand from speculation that the price rise around a circuit. Most of this bubble will end up on the scene that raised investors' expectations that prices will rise again or government policies to pull the prices down to normal.The speculation and high prices than the actual decline in asset prices in a bubble based on the assumption that prices will rise steadily, so when prices began to fall bubble will shrink. Often causes problems caused by bad debts