the paper examines for the first time the foreign exchange intervention policy in foreign exchange market of iran. and in this framework, the study designs and simulates the foreign exchange intervention model in iran. in the first section, the paper shows that the injection of oil revenues directly to economy and also the absence of potent structure of output are inclusively caused the central...

the certainty assumption that is used in economic analysis, althouth is easier in analysis, may be but not logical because in most projects time is playing a key role. in this time horizon the amount of income and future costs affecting by factors that are not managable by investors and can not to be forecasted. therefore in practice usually there is a gap between forecased and real variables. ...

In this paper we present a methodology of model-based calibration additional capital needed in an interconnected financial system to minimize potential contagion losses. Building on ideas from combinatorial optimization tailored controlling case complete information about interbank network, augment the model with three plausible types fire sale mechanisms. We then demonstrate power euro area ba...

Several recent papers have proposed recursive Lagrangian-basedmethods for solving dynamic contracting problems. Thesemethods give rise to Bellman operators that incorporate either a dual inf-sup or a saddle point operation. We give conditions that ensure the Bellman operator implied by a dual recursive formulation is contractive. JEL codes: C61, C73, D82, E61.

The issues of disparities, regional imbalance development and attempt to reducing development disparities among various regions have been attracted considerable attention among researchers, planners and policy makers. In this regard, this study employs a mathematical programing model for budget resources allocation among Iran provinces in order to development disparities reduction among them. I...

Bu çalışmada, sol-jel yöntemi ile sentezlenmiş ZnO molaritesinin P3HT (Poli (3-hekzil tiyofen)):PCBM ((6,6) Fenil-C61-Bütirik asit metil ester) aktif tabakalı güneş hücresinde verime olan etkisi incelenmiş ve 0,1, 0,3 0,5 M değerlerinde çalışılmıştır. Aygıtların verim değerleri, 100 mw/cm2 ışıması altında Keithley 2400 kaynak ölçer cihazı yardımı belirlenmiştir. Ayrıca XRD, UV-Vis FESEM teknikl...

In perturbation analysis of nonlinear dynamic systems, the presence of a bifurcation implies that the first-order behavior of the economy cannot be characterized solely in terms of the first-order derivatives of the model equations. In this paper, we use two simple examples to illustrate how to detect the existence of a bifurcation. Following the general approach of Judd (1998), we then show ho...

This paper presents a new approach for quantifying bank’s management quality, using a data envelopment analysis (DEA) model that combines multiple inputs and outputs to compute a scalar measure of efficiency. This measure will seek to capture a fundamental and crucial element of a bank’s success, which is its management efficiency. The results show that, on average, differences in management qu...