نتایج جستجو برای: time-varying parameter method

تعداد نتایج: 3400743  

Journal: :international journal of finance and managerial accounting 0
hosein maghsoud phd candidate science and research branch, islamic azad university tehran, iran fraydoon rahnamay roodposhti professor faculty member department of accounting, science and research branch, islamic azad university tehran, iran (correspond author.) hamidreza vakilifard assistant professor and faculty member department of accounting, science and research branch, islamic azad university tehran, iran taghi torabi assistant professor and faculty member department of economy, science and research branch, islamic azad university tehran, iran

in this study, 3 models of time-varying parameters (tvp), dynamic model selection (dms) and dynamic model averaging (dma) and a comparison with the ordinary least squares (ols) method in matlab in the time period 2003-2013 (with data on a monthly basis) are discussed. in the present study, the variables of unofficial exchange rate changes, interest rate changes and inflation in oil price foreca...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده ریاضی 1390

abstract: in the paper of black and scholes (1973) a closed form solution for the price of a european option is derived . as extension to the black and scholes model with constant volatility, option pricing model with time varying volatility have been suggested within the frame work of generalized autoregressive conditional heteroskedasticity (garch) . these processes can explain a number of em...

Journal: :SSRN Electronic Journal 2012

Journal: :Bulletin of the Australian Mathematical Society 1979

Journal: :Journal of Business & Economic Statistics 2022

Time-varying parameter VARs with stochastic volatility are routinely used for structural analysis and forecasting in settings involving a few endogenous variables. Applying these models to high-dimensional datasets has proved be challenging due intensive computations over-parameterization concerns. We develop an efficient Bayesian sparsification method class of we call hybrid TVP-VARs—VARs time...

Journal: Money and Economy 2015

Estimates of instrumental rules can be utilized to describe central bank's behavior and monetary policy stance. In the last decade, considerable attention has been given to time-varying parameter (TVP) specification of monetary policy rules. Constant-parameter reaction functions likely ignore the impact of model uncertainty, shifting preferences and nonlinearities of policymaker's choices. This...

Journal: :the modares journal of electrical engineering 2015
s.ehsan razavi s.k.y. nikravesh saeed shamaghdari r. rahmani

this paper proposes a new method of gain scheduling control design for a nonlinear system which is described as linear parameter varying form. a performance measure based on linear matrix inequality is introduced. to consider stability and performance measures in design process, the h∞ loop-shaping method is used to design the local controllers, which can be described as state feedback observer...

Journal: :amirkabir international journal of modeling, identification, simulation & control 2015
v. azimi m. b. menhaj a. fakharian

this article presents a fuzzy robust mixed - sensitivity gain - scheduled h controller based on the loop -shaping methodology for a class of mimo uncertain nonlinear time - varying systems. in order to design this controller, the nonlinear parameter - dependent plant is first modeled as a set of linear subsystems by takagi and sugeno’s (t - s) fuzzy approach. both loop - shaping methodology and...

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