This paper examines the high frequency multiscale relationships and nonlinear multiscale causality between Bitcoin, Ethereum, Monero, Dash, Ripple, and Litecoin. We apply nonlinear Granger causality and rolling window wavelet correlation (RWCC) to 15 min-data. Empirical RWCC results indicate...

This paper examines the volatility spillovers and the time-frequency dependence between crude oil and stock sectors of US and China. We also rely on the effects of the COVID-19 pandemic on spillover effects and portfolio management. The results reveal evidence of strong positive co-movements...

This paper examines the stock dividend ex-day effect on the Muscat Securities Market (MSM), which is of interest because several of the market microstructure explanations for the ex-day effect can be ruled out. We find that there are positive abnormal returns on Omani stock dividend ex-days. We...

We analyze the connectedness between major cryptocurrencies and nonfungible tokens (NFTs) for diferent quantiles employing a time-varying parameter vector autoregression approach. We fnd that lower and upper quantile spillovers are higher than those at the median, meaning that connectedness...