This paper provides new estimates of a time–varying NAIRU for Germany taking account of the structural break caused by German unification using two alternative estimators, the Kalman Filter and the partially linear model. Estimating a standard Phillips curve, the sum of coefficients associated with expected inflation is far below unity, whatever measure of expected inflation rates is employed. ...

The major goal of this work is to identify the key factors that affect e-commerce adoption in Algeria from macro perspective. In order to do so, four main infrastructures extracted from literature review have been used to determine the nature of the barriers that have prevented e-commerce from taking off as expected and to explain why Algeria lags behind other countries with similar economic co...

Primordial quantum fluctuations produced by inflation are conventionally assumed to be statistically homogeneous, a consequence of translational invariance. In this paper we quantify the potentially observable effects of a small violation of translational invariance during inflation, as characterized by the presence of a preferred point, line, or plane. We explore the imprint such a violation w...

In this paper, we investigate the properties of alternative monetary policy rules using four structural macroeconometric models: the Fuhrer-Moore model, Taylor’s Multi-Country Model, the MSR model of Orphanides and Wieland, and the FRB staff model. All four models incorporate the assumptions of rational expectations, short-run nominal inertia, and long-run monetary neutrality, but differ in man...

We investigate the range of inflationary universe models driven by scalar fields possessing a general interaction potential of the form V (φ) = V0φ n exp(−λφm). Power-law, de Sitter and intermediate inflationary universes emerge as special cases together with several new varieties of inflation. Analysing the behaviour of these models at the extrema of φ we derive sufficient constraints on the m...

In this research, non-linear inflationary dynamics based on the concept of missing money is studied using the threshold autoregressive models based on seasonal data of the time interval (1990:04-2016:07) for the economy of Iran. The finding of the research shows that simple and Divisia liquidity growth variables are determined as threshold variables, and inflation reacts to changes in the growt...

We illustrate an example where multiple flat directions give rise to inflation with a help of non-minimal kinetic terms. We show that multiple fields can assist inflation irrespective of the field potentials which are expected to be lifted in the early Universe. We argue that inflation may proceed in this set-up even if individual potentials are too steep to sustain inflation on their own. We c...