Showing 1 - 10 of 942
In this study, variance changing to the scale and multi-scale Capital Asset Pricing Model (CAPM) is tested by Wavelets …
Persistent link: https://www.econbiz.de/10005837029
This is a theoretic and econometric assessment of Peter Ferderer’s seminal paper published in the Journal of Post Keynesian Economics with the same title in 1993. New data shows that high forecaster discords coincide with a decrease in Investment expenditure. Specifically, the forecaster...
Persistent link: https://www.econbiz.de/10011156960
We propose two tests for the equality of covariance matrices between two high-dimensional populations. One test is on the whole variance-covariance matrices, and the other is on offdiagonal sub-matrices which define the covariance between two non-overlapping segments of the high-dimensional...
Persistent link: https://www.econbiz.de/10011259210
The study of volatility transmission across markets commonly termed “volatility spillover” provides useful insights … volatility and information transmission across the Gulf Cooperation Council (GCC) markets. The model separates direct volatility … portfolio managers. Findings of the study show that effects of indirect volatility transmission are more prominent than direct …
Persistent link: https://www.econbiz.de/10011110441
A time-changing volatility binomial tree to price European options is presented followed by an algorithm explaining how …
Persistent link: https://www.econbiz.de/10009323641
Tests results for causality between energy consumption and economic growth do not have a consensus in the financial economics literature. Empirical evidence varies on the economies examined and methodology employed. This paper proposes a wavelet analysis as a semi- parametric model for detecting...
Persistent link: https://www.econbiz.de/10005837189
Egypt in a wavelets transform framework. We investigate the direction of causality in the relationship inflation …-inflation uncertainty by combining component GARCH model, wavelets decomposition and scale-by-scale nonlinear causality test. We find a …
Persistent link: https://www.econbiz.de/10011107856
fluctuations can be used with a local volatility (diffusion coeffficient) to generate an exponential distribution for asset returns …, and also how fat tails for extreme returns are generated dynamically by a simple generalization of our new volatility …
Persistent link: https://www.econbiz.de/10005836619
Markov processes are used in a wide range of disciplines, including finance. The transition densities of these processes are often unknown. However, the conditional characteristic functions are more likely to be available, especially for Lévy-driven processes. We propose an empirical likelihood...
Persistent link: https://www.econbiz.de/10011257884
Motivated by the latest effort to employ banded matrices to estimate a high-dimensional covariance Σ , we propose a test for Σ being banded with possible diverging bandwidth. The test is adaptive to the “large p , small n ” situations without assuming a specific parametric distribution for...
Persistent link: https://www.econbiz.de/10011259723