cospectrum

cospectrum

[¦kō′spek·trəm]
(physics)
The spectral decomposition of the in-phase components of the covariance of two functions of time.
The real part of the cross spectrum of two functions.
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References in periodicals archive ?
He finds that the price-output cospectrum is negative at all frequencies in response to a productivity shock if there is a constant growth money rule.