Showing posts with label GARCH. Show all posts
Showing posts with label GARCH. Show all posts

Wednesday, July 25, 2012

Volatility vs. Price*


In recent years, the oil market has been characterised by rising, and at times, rapidly fluctuating price levels. In the last three months alone, Brent crude oil prices have fluctuated in a wide range from $125/bbl to $89/bbl. Higher volatility will certainly impact both consumers and producers. Oil exporting countries can be negatively affected by the impacts of high volatility in oil prices on fiscal revenues, investment and confidence in the economy. Higher volatility can have negative impacts on inflation and growth prospects in oil importing countries as well. As a response to observed higher prevailing volatility, for example, G20 leaders called for policy options to combat excessive price volatility in commodity markets in general, and in oil markets in particular. In order to reduce volatility in oil markets, the G20 experts group emphasised the importance of improving data transparency in both financial and physical markets as well as phasing out of inefficient fossil fuel subsidies. They also urged the use of country-specific monetary and fiscal responses to support inclusive growth in order to mitigate the impacts of excessive price volatility.


Sunday, July 17, 2011

Volatility in Crude Oil Prices*

Prices for oil, like those for many other commodities, are inherently volatile and volatility itself varies over time. In recent years, the oil market has been characterised by rising, and at times, rapidly fluctuating, price levels. In the last nine months alone, crude oil prices have fluctuated in a wide range from $75/bbl to $125/bbl. However, careful examination of historical patterns shows that the volatility observed during 2008-2009 is actually lower than the peak observed in 1990‑1991.

Thursday, May 5, 2011

Volatility: How to Measure It*

Prices for oil, like those of many other commodities, are inherently volatile. In recent years, the oil market has been characterised by rising, and at times, rapidly fluctuating, price levels. In the last six months alone, oil prices have fluctuated in a wide range from $75/bbl to $125/bbl.