Article aims to demonstrate the significant impact of dynamics of the relationship between financial intermediaries on the level of market volatility. Particularly important are the growing share of the links between hedge funds and other financial institutions. In order to demonstrate the...

Firm Profitability - Does it really matter for shareholder return or ROE (return on equity)? Does this question sound oxymoron and antithetic? Not really. On the contrary, evidence has surfaced that Returns on equity - based on the shareholders' equity accounted in the balance sheet - is not...

Corporate management is often accused of short-term oriented behaviour related to R&D expenditures. This study analyses the influence of R&D volatility and R&D intensity on the market capitalization of pharmaceutical and medical research companies from Europe, considering the institutional...

We try to show the danger of confusing the concept of volatility with that of the standard deviation of a probability distribution. We work in the theoretical Black-Scholes model to give an explicit relationship between the two measures. We apply and then illustrate this relationship, firstly in...

Prior research finds evidence suggesting a long-term trend of declining accruals quality in the U.S. Using the Dechow and Dichev (2002) accruals quality measure, we provide new evidence that this decline began to reverse around 2000, with accruals quality generally improving through 2016. We...

This study advances the understanding of the Preferred Habitat Model's capacity to shed light on the inter-market transfer of mean returns and the diffusion of price volatility in Pakistani investment markets. It examines the extent to which returns in one market exert a systematic influence on...

We characterize the dynamic properties of Generalized Autoregressive Score (GAS) processes by identifying regions of the parameter space that imply stationarity and ergodicity. We show how these regions are affected by the choice of parameterization and scaling, which are key features of GAS...

This paper employs weighted least squares to examine the risk-return relation by applying high-frequency data from four major stock indexes in the US market and finds some evidence in favor of a positive relation between the mean of the excess returns and expected risk. However, by using...

Market option prices in last 20 years confirmed deviations from the Black and Scholes (BS) models assumptions, especially on the BS implied volatility. Implied binomial trees (IBT) models capture the variations of the implied volatility known as "volatility smile". They provide a discrete...

Measuring and modeling financial volatility is the key to derivative pricing, asset allocation and risk management.The recent availability of high-frequency data allows for refined methods in this field.In particular, more precise measures for the daily or lower frequency volatility can be...