Previous studies on fiscal policy at the zero bound have focused on models with perfect foresight. However, the recent economic environment motivating such research is characterized by a high degree of uncertainty. This paper studies optimal government spending and monetary policy when the nominal interest rate is subject to the zero lower bound constraint in a stochastic environment. In the pr...

We prove common fixed point theorems for four mappings in compact metric spaces satisfying implicit relations using the concept of occasionally weak compatibility which generalize Theorems of [1], [18] and [19]. 2000 Mathematics Subject Classification: 54H25, 47H10.

the photocatalytic decomposition of trichloroethylene (tce) and tetrachloroethylene (pce)in water was studied. tce and pce were present in water at very low concentrations of about 15 μg/dm3. thisconcentration level corresponds to the one occasionally occurring in groundwater. results of this researchconfirmed usefulness of the photocatalytic process for successful removal of low-concentrated t...