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1 vote
0 answers
78 views

Check if volatility of series is significantly different

Is there a possibility to check if the difference in volatilities computed from different time series of returns is significant? Which hypothesis test might be good here?
Question Anxiety's user avatar
3 votes
2 answers
2k views

Testing if the volatility of single stocks and/or indices have risen in the past

I'm currently writing my bachelor thesis and the main goal of my paper is to test if the volatility of single stocks and indices have risen in the past. My data consists of all stocks of the SMI and ...
RazorLazor's user avatar
2 votes
1 answer
678 views

Best performance evaluation measure for GARCH model? [duplicate]

I want to compare the performance of various volatility models like GARCH, eGARCH, and gjrGARCH from actual volatility (computed using high frequency data). I found three common performance evaluation ...
Neeraj's user avatar
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1 vote
0 answers
139 views

Regression - volatility vs return

I am attempting to estimate a linear model as: $$ y = a +bX +e $$ I have a series of annual returns and I would like to estimate the effect of volatility on losses. My Null hypothesis is that ...
user2589's user avatar