نتایج جستجو برای: مدل bvar

تعداد نتایج: 120059  

1990
Timothy Park

A set of rigorous diagnostic techniques is used to evaluate the forecasting performance of five multivariate time-series models for the U.S. cattle sector. The root-meansquared-error criterion along with an evaluation of the rankings of forecast errors reveals that the Bayesian vector autoregression (BVAR) and the unrestricted VAR (UVAR) models generate forecasts which are superior to both a re...

2014
Anders Warne Günter Coenen Kai Christoffel

The predictive likelihood is useful for ranking models in forecast comparison exercises using Bayesian inference. We discuss how it can be estimated, by means of marginalization, for any subset of the observables in linear Gaussian state-space models. We compare macroeconomic density forecasts for the euro area of a DSGE model to those of a DSGE-VAR, a BVAR, and a multivariate random walk over ...

This paper investigates the forecasting performance of different time-varying BVAR models for Iranian inflation. Forecast accuracy of a BVAR model with Litterman’s prior compared with a time-varying BVAR model (a version introduced by Doan et al., 1984); and a modified time-varying BVAR model, where the autoregressive coefficients are held constant and only the deterministic components are allo...

2009
Kevin K.F. Wong Haiyan Song Kaye S. Chon

This study extends the existing forecasting accuracy debate in the tourism literature by examining the forecasting performance of various vector autoregressive (VAR) models. In particular, this study seeks to ascertain whether the introduction of the Bayesian restrictions (priors) to the unrestricted VAR process would lead to an improvement in forecasting performance in terms of achieving a hig...

2015
Andrea Carriero George Kapetanios Massimiliano Marcellino

We propose a new approach to forecasting the term structure of interest rates, which allows to efficiently extract the information contained in a large panel of yields. In particular, we use a large Bayesian Vector Autoregression (BVAR) with an optimal amount of shrinkage towards univariate AR models. The optimal shrinkage is chosen by maximizing the Marginal Likelihood of the model. Focusing o...

ژورنال: :پژوهشهای اقتصادی ایران 2013
حسن حیدری احمد ملابهرامی

این مطالعه، به منظور برآورد سهم مخارج انرژی از تولید غیرنفتی و بررسی اثر شوک­های قیمت انرژی بر متغیرهای تولید و تورم، از یک مدل تعادل عمومی پویای تصادفی در چارچوب طرف تقاضای انرژی استفاده می­کند. نتایج تخمین مدل نشان می­دهد که سهم مخارج انرژی در تولید ایران برابر با 1/12 درصد است که بر پایه آمارها حدود 8 برابر مقدار مشابه در کشورهای اروپایی است. همچنین بر پایه توابع عکس العمل آنی مدل، شوک مثبت ...

2008
Chris Bloor Troy Matheson

We examine the real-time forecasting performance of Bayesian VARs (BVARs) of different sizes using an unbalanced data panel. In a real-time out-of-sample forecasting exercise, we find that our BVAR methodology outperforms univariate and VAR benchmarks, and produces comparable forecast accuracy to the judgementally-adjusted forecasts produced internally at the Reserve Bank of New Zealand. We ana...

2007
RANGAN GUPTA Renée van Eyden

This paper develops a Bayesian Vector Error Correction Model (BVECM) for forecasting inventory investment in South Africa. The model is estimated using quarterly data on actual sales, production, unfilled orders, price levels and interest rates, for the period of 1978 to 2000. The out-of-sample-forecast accuracy obtained from the BVECM, over the forecasting horizon of 2001:1 to 2003:4, is compa...

هدف اصلی این تحقیق بررسی رابطه بین درآمدهای نفتی و اجزای تقاضای کل و همچنین پویایی بین مخارج سرمایه‌ای مؤثر دولت و GDP بدون نفت کشور با تبیین ویژگی ناکارایی‌ سرمایه‌گذاری‌های دولت است. با استفاده از مدل خودرگرسیون برداری بیزین (BVAR) طی دوره زمانی فصلی از فصل اول 1369 تا فصل اول سال 1396 و استفاده از شاخص‌های RMSE و Theil برای انتخاب تابع پیشین مدل BVAR مشخص گردید که تابع پیشین نرمال- ویشارت دق...

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