Search Results - subject:"Phase variation"

Structural change and phase variation : a re-examination of the q-model usinge wavelet exploratory analysis

Gallegati, Marco; Ramsey, James B. - In: Structural change and economic dynamics : SC+ED 25 (2013), pp. 60-73

Persistent link: https://www.econbiz.de/10009761299

Structural change and phase variation: A re-examination of the q-model using wavelet exploratory analysis

Gallegati, Marco; Ramsey, James B. - In: Structural Change and Economic Dynamics 25 (2013) C, pp. 60-73

This paper uses the structural change model and wavelet exploratory analysis to re-examine Tobin's q theory of investment. There are two main results. First, wavelet exploratory analysis provides a useful complementary approach to standard confirmatory statistical analysis. Specifically, using...

Persistent link: https://www.econbiz.de/10011048660

Phase and amplitude-based clustering for functional data

Slaets, Leen; Claeskens, Gerda; Hubert, Mia - In: Computational Statistics & Data Analysis 56 (2012) 7, pp. 2360-2374

locations possess phase variation. This is commonly addressed by preprocessing the data via a warping procedure. As opposed to … treating phase variation as a nuisance effect, it is advantageous to recognize it as a possible important source of information …

Persistent link: https://www.econbiz.de/10010574461