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...

the purpose of this paper is to examine the effects of monetary, fiscal and oil revenue shocks on macroeconomic variables in the framework of rule and discretionary monetary policy. to end this, we use a new keynesian dynamic stochastic general equilibrium (dsge) model. given the dominant role of oil in the country, we consider the role of oil shock in the model through different channels. the ...

We analyze reinforcement learning under so-called “dynamic reinforcement”. In reinforcement learning, each agent repeatedly interacts with an unknown environment (i.e., other agents), receives a reward, and updates the probabilities of its next action based on its own previous actions and received rewards. Unlike standard reinforcement learning, dynamic reinforcement uses a combination of long ...

Abstract. In this paper, we formulate a general time-inconsistent stochastic linear–quadratic (LQ) control problem. The time-inconsistency arises from the presence of a quadratic term of the expected state as well as a state-dependent term in the objective functional. We define an equilibrium, instead of optimal, solution within the class of open-loop controls, and derive a sufficient condition...

In this paper, we study the effect of proportional transaction costs on consumptionportfolio decisions and asset prices in a dynamic general equilibrium economy with a financial market that has a single-period bond and two risky stocks, one of which incurs the transaction cost. Our model has multiple investors with stochastic labor income, heterogeneous beliefs, and heterogeneous Epstein-Zin-We...

Staggered price-setting and staggered wage-setting are commonly viewed as similar mechanisms in generating persistent real effects of monetary shocks. In this paper, we distinguish the two mechanisms in a dynamic stochastic general equilibrium framework. We show that, although the dynamic pricesetting and wage-setting equations are alike, a key parameter governing persistence is linked to the u...

The purpose of this study is to analyse the dynamic response of a set of euro area macroeconomic variables to monetary policy and technology shocks. We do so by conducting simulations on three different models of the euro area. The first modelling approach corresponds to structural VAR models (SVAR), the second approach uses the NiGEM multi-country model developed by the National Institute of E...

Within the non-stochastic dynamic general equilibrium model framework this paper examines the implications of alternative fiscal consolidation programs for small open economy. The calibrated model enables realistically quantify the impact of the deficit financing and fiscal consolidation on consumption and saving of households, investment of firms and thereby on the capital stock and real inter...

A stochastic SIR epidemic dynamic model with distributed-time-delay, for a two-scale dynamic population is derived. The distributed time delay is the varying naturally acquired immunity period of the removal class of individuals who have recovered from the infection, and have acquired natural immunity to the disease. We investigate the stochastic asymptotic stability of the disease free equilib...

This paper suggests a probability-dominant user equilibrium (PdUE) model to describe the selfish routing equilibrium in a stochastic traffic network. At PdUE, travel demands are only assigned to the most dominant routes in the same origin-destination pair. A probability-dominant rerouting dynamic model is proposed to explain the behavioral mechanism of PdUE. To facilitate applications, the logi...