A number of unit root tests which accommodate a deterministic level shift at a known point in time are compared in a Monte Carlo study. The tests differ in the way they treat the deterministic term of the DGP. It turns out that Phillips-Perron type tests have very poor small sample properties...

This paper analyzes the 5-, 14- and 21-day cumulative positivity rate vis-à-vis the COVID-19 deceased rate of each time period for the first four months of COVID-19 from April 2020 to September 2020 in New Delhi, India with the intention of getting insight into the relationship between the two...

Engle and Russell (1998) introduce the autoregressive conditional duration (ACD) model to model the dynamics of financial duration. It is recognized that the ACD model can be specified in ARMA form. We show that as long as the innovations of the ACD model follows a lognormal distribution, the...

This paper presents and compares several time-series models for returns of broadbased stock indices. These models nest a nonlinear asymmetric GARCH (NGARCH) model as a special case. Some of these models are empirically motivated ad-hoc specifications others are derived from a representative...

This paper presents and compares several time-series models for returns of broadbased stock indices. These models nest a nonlinear asymmetric GARCH (NGARCH) model as a special case. Some of these models are empirically motivated ad-hoc specifications others are derived from a representative...

This study investigates the day of the week effect on the volatility of major stock market indexes for the period of 1988 through 2002. Using a conditional variance framework, we find that the day of the week effect is present in both return and volatility equations. The highest volatility...

In this study, we aim to analyze the relation between return and volatility in different types of exchange-traded funds (ETFs) traded in the Borsa Istanbul. The types we examine are Islamic stock index, conventional stock index, bond, commodity, and U.S. dollar ETFs. We employ the following...

In this study, we aim to analyze the relation between return and volatility in different types of exchange-traded funds (ETFs) traded in the Borsa Istanbul. The types we examine are Islamic stock index, conventional stock index, bond, commodity, and U.S. dollar ETFs. We employ the following...

In order to examine non-linear predictability of the US and Japanese dividend-yield ratio, smooth transition regression model analysis is applied to an extended time period of data. The theoretical basis for investigating non-linear behaviour in stock returns can be based on the interaction...

Finanzmarktkrisen entstehen häufig in Folge von Immobilienpreisblasen. In dieser Arbeit wird die Entstehung von Immobilienpreisblasen unter Berücksichtigung der spezifischen Eigenschaften von Immobilienmärkten sowie von Wechselwirkungen zwischen Immobilien- und Finanzmärkten untersucht und...