cash is a critical source for business enterprises and creating balance between available cash and the required cash is the most important factor concerning the economic viability of a business enterprise. both of the companies that do not hold enough cash or hold too much cash, face too much problems. this paper investigates the impact of deviation from the estimated optimal cash level on firm...

To quantify heavy-tailed distributions observed in financial time series, we propose a general method to characterize symmetric non-Gaussian distributions. In our approach, an observed time series is assumed to be described by the multiplication of Gaussian and amplitude random variables, where the amplitude variable describes fluctuations of the standard deviation. Based on this framework, it ...

The two general data analytic questions of subgroup mining (B2.2) deal with deviations and associations (C5.2.3, C5.2.4). A deviation pattern describes a deviating behavior (distribution) of a target variable in a subgroup. Target variable and behavior type are selected by the analyst for an individual mining task, the deviating subgroups are determined by the mining method. Deviation patterns ...

This study uses the linear model based on the notion of cross-sectional standard deviation (CSSD) by Christie and Huang (1995) and nonlinear model based on cross-sectional absolute deviation (CSAD) proposed by Chang et al. (2000) to provide evidence for the existence of herding behaviour by investors in Taiwan during the period January 4, 2000 to December 28, 2012. We examine whether returns, v...