نتایج جستجو برای: bvar model
تعداد نتایج: 2104353 فیلتر نتایج به سال:
Large Bayesian VARs with stochastic volatility are increasingly used in empirical macroeconomics. The key to making these highly parameterized useful is the use of shrinkage priors. We develop a family priors that captures best features two prominent classes priors: adaptive hierarchical and Minnesota Like priors, new ensure only ‘small’ coefficients strongly shrunk zero, while ‘large’ remain i...
Nowcasting can play a key role in giving policymakers timelier insight to data published with significant time lag, such as final GDP figures. Currently, there are plethora of methodologies and approaches for practitioners choose from. However, lacks comprehensive comparison these disparate terms predictive performance characteristics. This paper addresses that deficiency by examining the 12 di...
Large Bayesian VARs are now widely used in empirical macroeconomics. One popular shrinkage prior this setting is the natural conjugate as it facilitates posterior simulation and leads to a range of useful analytical results. This is, however, at expense modeling flexibility, rules out cross?variable shrinkage, that shrinking coefficients on lags other variables more aggressively than those own ...
a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...
Günümüz finansal piyasalarında faaliyet gösteren yatırımcı türlerinin davranışlarını ve bu davranışların piyasayı ne ölçüde etkileyeceğini anlamak Türkiye gibi gelişmekte olan piyasaların gelişimi istikrarı açısından önem arz eden bir konudur. Bu bağlamda çalışmada, Borsa İstanbul’da yatırım yapan yatırımcıların kimlik tipi (gerçek, tüzel diğer) uyruğu (yerli, yabancı) göz önünde bulundurularak...
پنل های خورشییدی دارای مشیه ه جریان -ولتاژ غیر خطی بوده و تنها در یک نقطه کار خاص، حداکثر توان را تولید می کنند. این نقطه بهینه توان با تغییر دما و شیدت نور تغییر می کند. روش های مهتلفی برای ردیابی نقطه حداکثر توان به صورت free model و based model معرفی شده است. این تحقیق روش جدیدی جهت بهبود عملکرد ردیابی نقطه حداکثر توان پنل های خورشیدی جدا از شبکه ارائه می دهد و الگوریتم روش پیشینهادی از دو...
run-out-table (rot) is located between last finishing stand and down coiler in a hot strip mill. as the hot steel strip passes from rot, water jets impact on it from top and bottom and strip temperature decreases approximately from 800-950 °c to 500-750°c. the temperature history that strip experience while passing through rot affects significantly the metallurgical and mechanical properties, s...
the main purpose of this research was to:1.develop a coking model for thermal cracking of naphtha.2.study coke inhibition methods using different coke inhibitors.developing a coking model in naphtha cracking reactors requires a suitable model of the thermal cracking reactor based on a reliable kinetic model.to obtain reliable results all these models shall be solved simultaneously.for this pu...
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