The next generation of gravitational wave detectors holds out the prospect of detecting a stochastic gravitational wave background generated in the very early universe. In this article, we review the various cosmological processes which can lead to such a background, including quantum fluctuations during inflation, bubble collisions in a first-order phase transition and the decay of a network o...

In a recent paper Damour and Mukhanov describe a scenario where inflation may continue during the oscillatory phase. This effect is possible because the scalar field spends a significant fraction of each period f oscillation on the upper part of the potential. Such additional period of inflation could push perturbations after the slow roll regime to observable scales. Although we show that the ...

a r t i c l e i n f o JEL classification: G1 E4 C5 Keywords: Term structure Yield curve Monetary policy Macroeconomics This paper contributes to the literature on the relationship between the yield curve and macroeconomic variables by focusing on an emerging market case: Turkey. The most important result of the paper is that the relationship between the yield curve and macroeconomic variables i...

This paper explores a model of wage adjustment based on the assumption that information disseminates slowly throughout the population of wage setters. This informational frictional yields interesting and plausible dynamics for employment and inflation in response to exogenous movements in monetary policy and productivity. In this model, disinflations and productivity slowdowns have a parallel e...

We construct a model that captures New Monetarist ideas in order to explain post-Great Recession observations on inflation, nominal interest rates, and real interest rates. When finance constraints bind, the model can deliver low real interest rates and positive rates of inflation at the zero lower bound. Optimal monetary policy in the face of a financial crisis shock implies a positive nominal...

The "new economy" has become a buzzword to characterize the American economy, with positive connotations but imprecise meaning. Sometimes it is used to refer only to selected high technology sectors, specifically computers, semiconductors, software, and telecommunications. But usually the term implies significant changes in the US economy as a whole. At its most dramatic, the term suggested tha...

Usually inflation ends either by a slow rolling of the inflaton field, which gradually becomes faster and faster, or by a first-order phase transition. We describe a model where inflation ends in a different way, due to a very rapid rolling (‘waterfall’) of a scalar field σ triggered by another scalar field φ. This model looks as a hybrid of chaotic inflation with V (φ) = m φ 2 and the usual th...

this paper studies the factors influencing divorce rate across the provinces of iran with an emphasis on economic factors, particularly unemployment and inflation. in the literature review, economic as well as psychology literature has been dealt with. to measure the impact of economic factors on divorce rate, unemployment and inflation variables have been examined. the rates of urbanization an...