Preprocessing Data: A Study on Testing Transformations for Stationarity of Financial Data

University essay from KTH/Matematisk statistik; KTH/Matematisk statistik

Abstract: In thesis within Industrial Economics and Applied Mathematics in cooperation with Svenska Handelsbanken given transformations was examined in order to assess their ability to make a given time series stationary. In addition, a parameter α belonging to each of the transformation formulas was to be decided. To do this an extensive study of previous research was conducted and two different tests of hypothesis where obtained to confirm output. A result was concluded where a value or interval for α was chosen for each transformation. Moreover, the first difference transformation is proven to have a positive effect on stationarity of financial data.

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