Forums  > Trading  > What is the best way to measure response for a shock?  
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Total Posts: 1
Joined: Dec 2016
Posted: 2016-12-01 02:53
I am trying to measure the response to a shock in a financial time series but I am not sure what is the best way to actually measure the shock. For example, if I want to measure a shock compared to the recent history of the underlying time series, how much data do I use? How far back should I go? I am not sure how to determine the correct window size. Should it be a function of the response time being measured? Very appreciate any comments.


Total Posts: 1591
Joined: Sep 2006
Posted: 2016-12-04 13:31
Try improving clarity here. Shock to what? Measured in what terms: price, return, vol, debt? Once you put some precision around what your "shock" is then you can measure the response using the same metric, no? Presumably there is a sign flip between shock and response, I would think, but that may depend on your measure.


Total Posts: 78
Joined: Sep 2015
Posted: 2017-01-24 17:53
I have used this in SAS in the past.

The following exists in scipy.
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