Purpose: This paper aims to test the volatility models for Bitcoin (BTC) and financial stress index (FSI) examine spillover among them. aim was reached by obtaining weekly data from 7th of January 2011 24th December 2021. Methodology: First, modelling series is provided, GARCH (1,1) BTC IGARC (1,2) FSI are determined as most appropriate models. Then, residual created each variable over IGARCH s...

One of the key components political stability is relations with institutions, which refers to relationships between government and higher judicial organ, presidency, military bureaucracy, civil bureaucracy independent economic international institutions. The importance institutions for development has been thoroughly discussed by both old new schools institutional economics, who developed these...

In this paper we propose a new multivariate GARCH model with timevarying correlations. We adopt the vech representation based on the conditional variances and the conditional correlations. While each conditional-variance term is assumed to follow a univariate GARCH formulation, the conditional-correlation matrix is postulated to follow an autoregressive moving average type of analogue. By impos...

بازار جهانی محصولات کشاورزی استراتژیک مانند کنجاله سویا و گندم، تحت تاثیر نوسانات قیمت نفت قرار دارد و این موضوع بر تصمیمات سیاست گذاران و تولیدکنندگان این حوزه تاثیرگذار است. در این مقاله، با توجه به اهمیت ریسک های وارد شده بر قیمت نفت، سعی شده است تا تاثیر ریسک بازار نفت بر بازار محصولات کشاورزی مشخص گردد. به همین دلیل، بازده روزانه قیمت جهانی کنجاله سویا و گندم به عنوان مهمترین نهاده های کشا...

in this paper, in order to optimize the portfolio consisting of selected industrial stocks of petroleum products, automobiles and parts, electrical industry and extraction of minerals from tehran stock exchange member, first, time – varying conditional covariance matrix has been estimated based on the following multivariate garch models: diagonal-vech (1,1), ccc (1,1) and diagonal -bekk (1,1). ...

Abdülkerîm Müderris, Irak’ın ve İslâm âleminin ünlü çağdaş âlimlerindendir. Müderrislik, imamlık müftülük gibi birçok görevle birlikte yerli yabancı yüzlerce öğrenci yetiştirmiştir. Tefsir, hadis, fıkıh, tarih, tasavvuf edebiyat pek çok alanda yetmişten fazla eser kaleme almıştır. Zengin bir ilmî mirası geride bırakan Müderris’in en meşhur çalışmalarından biri Mevâhibu'r-Rahmân fî Tefsîri'l-Kur...