Różniczkowy model inflacji rejestrowanej w Polsce
Differential model of inflation in Poland

Summary/Abstract: In the article is shown additive model with amplitude of oscillation changing in any function of time. It was proven that this model is generalization of the ordinary additive and multiplicative models. Establishment of the amplitude as an exponential function and oscillations as single harmonics of Fourier’s series will let to write the inflation variability as a homogeneous second order differential equation with damping factor (equation of harmonic vibration damping). The model was used for monthly inflation from January 1991 to December 2009.

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