Stylized facts on U.S. output and interest rates have so far proved hard to match with simple DSGE models. I estimate covariances between output, nominal and real interest rate conditional on structural shocks, since such evidence has largely been lacking in previous discussions of the output-interest rate puzzle. Conditional on shocks to technology and monetary policy, the results square with ...

This paper studies the equity premium implications of a canonical New Keynesian model with investment. We find that the presence of a time-varying marginal cost dampens the expansionary impact of a positive technology shock. With a given fraction of firms standing ready to satisfy demand at predetermined prices, the variations in the marginal utility of consumption attributed to technology shoc...

Plasmid pTC-F14 is a 14.2-kb plasmid isolated from Acidithiobacillus caldus that has a replicon that is closely related to the promiscuous, broad-host-range IncQ family of plasmids. The region containing the mobilization genes was sequenced and encoded five Mob proteins that were related to those of the DNA processing (Dtr or Tra1) region of IncP plasmids rather than to the three-Mob-protein sy...

We study a stylized theory of the volatility reduction in the U.S. after 1984—the Great Moderation—which attributes part of the stabilization to less volatile shocks and another part to more difficult inference on the part of Bayesian households attempting to learn the latent state of the economy. We use a standard equilibrium business cycle model with technology following an unobserved regime-...

This study models a joint pricing, inventory, and preservation decision-making problem for deteriorating items subject to stochastic demand and promotional effort. The generalized price-dependent stochastic demand, time proportional deterioration, and partial backlogging rates are used to model the inventory system. The objective is to find the optimal pricing, replenishment, and preservation t...

the financial crisis of 2007 showed that the impact of financial markets on macroeconomic developments is deep. the labor market was affected by financial variables. this paper extends the new keynesian model of a stochastic dynamic general equilibrium (dsge) for the iran economy in three context of an open economy, consider a financial frictions and frictions labor market, the impact of financ...

This paper shows that imperfect competition can be a rich source of sunspots equilibria and coordination failures. This is demonstrated in a dynamic general equilibrium model that has no major distortions except imperfect competition. In the absence of fundamental shocks, the model has a unique certainty (fundamental) equilibrium. But there is also a continuum of stochastic (sunspots) equilibri...

In this paper we examine the large shocks due to major economic or financial events that affected U.S. macroeconomic time series on the period 1860–1988, using outlier methodology. We show that these shocks can have temporary or permanent effects on the series and that most of them can be explained by the Great Depression, World War II and recessions as well as by monetary policy for the intere...

In this paper we examine the large shocks due to major economic or financial events that affected U.S. macroeconomic time series on the period 1860–1988, using outlier methodology. We show that these shocks can have temporary or permanent effects on the series and that most of them can be explained by the Great Depression, World War II and recessions as well as by monetary policy for the intere...

A moderately thermophilic (45 to 50 degrees C), highly acidophilic (pH 1.5 to 2.5), chemolithotrophic Acidithiobacillus caldus strain, f, was isolated from a biooxidation process used to treat nickel ore. Trans-alternating field electrophoresis analysis of total DNA from the A. caldus cells revealed two plasmids of approximately 14 and 45 kb. The 14-kb plasmid, designated pTC-F14, was cloned an...