garch simulation

Volatility from daily or monthly: garch evidence

October 29, 2012 | Pat

Should you use daily or monthly returns to estimate volatility? Does garch explain why volatility estimated with daily data tends to be bigger than if it is estimated with monthly data? Previously There are a number of previous posts — with the variance compression tag — that discuss the phenomenon of volatility ... [Read more...]

Creating prediction distributions

January 4, 2011 | Pat

Here we give details and code for the prediction distributions exhibited in yesterday’s blog post Tis the season to predict. Eight years of returns The equity indices use daily closing levels from the start of 2003.  This data comes from Yahoo. A roughly equivalent technique of selecting the last 2000 daily ...
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