This research examines the correlations between return volatility of cryptocurrencies, global stock market indices, and spillover effects COVID-19 pandemic. For this purpose, we employed a two-stage multivariate exponential GARCH (EGARCH) model with an integrated dynamic conditional correlation (DCC) approach to measure impact on financial portfolio returns from 2019 2020. Moreover, used value-...

The main purpose of this paper is to evaluate the effect of crude oil price on global fertilizer prices in both the mean and volatility. The endogenous structural breakpoint unit root test, ARDL model, and alternative volatility models, including GARCH, EGARCH, and GJR models, are used to investigate the relationship between crude oil price and six global fertilizer prices. The empirical result...

This paper investigates the transmission of price and volatility spillovers across the New York, London, Frankfurt and Paris stock markets under the framework of the multivariate EGARCH model. The model is extended to allow dynamic conditional correlations, with the correlations allowed to change with the introduction of the Euro. By using daily closing prices recorded at 16:00 London time (pse...

Dalam kehidupan sehari-hari, perekonomian tak lepas dari kebutuhan akan uang. Terkait hal tersebut, dibutuhkan perencanaan pencetakan uang serta komposisi yang dicetak selama satu tahun kedepan oleh Bank Indonesia. Peramalan cash outflow dan inflow dapat digunakan untuk mengestimasikan masyarakat. Pada umumnya sering dijumpai permasalahan data deret waktu memiliki hubungan linier. Akan tetapi, ...

This paper studies price discovery in Nikkei 225 markets through the nonlinear smooth transition adjustments between spot and future prices across all three futures markets. We test for nonlinearity employ an exponential error correction model (ESTECM) with generalised autoregressive conditional heteroscedasticity (EGARCH), allowing effects of transaction costs, heterogeneity, asymmetry adjustm...

Bu çalışmada, Türkiye’de döviz piyasalarında gözlemlenen aşırı oynaklık Dolar / TL kuru üzerinden analiz edilerek en uygun modeli belirlenmeye çalışılmıştır. Ardından tahmin edilen başarılı model sonucunda elde varyans serisi ile Türkiye Cumhuriyet Merkez Bankası rezerv miktarı arasında anlamlı bir ilişkinin olup olmadığı araştırılmıştır. Ocak 2017 – 2022 tarihleri arası dönemde nominal kurunda...

This study extends the dynamic conditional correlation model to allow day-specific correlations of shocks across international stock markets. The properties of the resulting periodic dynamic conditional correlation (PDCC) model are examined, with the model then applied to study the intra-week interactions between six developed European stock markets and the US over the period 1993 2005. We find...

In this paper various ARCH models and relevant news impact curves including a partially nonparametric (PNP) one are compared and estimated with daily Iran stock return data. Diagnostic tests imply the asymmetry of the volatility response to news. The EGARCH model, which passes all the tests and appears relatively matching with the asymmetry in the data, seems to be the most adequate characteriz...