Inflatonless inflation.

Universe Decay, Inflation and the Large Eigenvalue of the Cosmological Constant Seesaw

We discuss implications of the large eigenvalue of the cosmological constant seesaw mechanism extending hep-th/0602112 and hep-th/0604108. While the previous papers focused on the small eigenvalue as a cosmological constant associated with the accelerating Universe, here we draw attention to the physical implications of the large eigenvalue. In particular we find that the large eigenvalue can g...

Asymmetric Behavior of Inflation in Iran: New Evidence on Inflation Persistence Using a Smooth Transition Model

T his paper investigates the asymmetric behavior of inflation. We use logistic smooth transition autoregressive (LSTAR) model to characterize the regime-switching behavior of Iran’s monthly inflation during the period May 1990 to December 2013. We find that there is a triple relationship between the inflation level, its fluctuations and persistence. The findings imply that the behavi...

Dynamic Relationship between Inflation Uncertainty and Private Investment in Iran: An Application of VAR-GARCH-M Model

This paper empirically investigates the relationship between CPI inflation uncertainty, and private investment in the Iranian economy from 1988 to 2010 by using quarterly data. We employ a bivariate VAR(5)-GARCH(1,1)-in-mean with diagonal BEKK model to discover in a unified framework how are the interactions between the variables. In the model, conditional variance of inflation and private inve...

The Relation Between Inflation and Inflation Uncertainty In Iran

Financial System Performance and Inflation in Iran: Some Stylized Facts

The mutual relationship between financial development, as a multilateral concept, and inflation, as a key indicator of macro-economy is crucial. In this paper, inflation regimes are identified using Markov-Switching approach, and then the finance-inflation mutual relationship is investigated in post-revolution cabinets in Iran (1982-2017). Our findings suggest that there are mutual co-movements...