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Estimation of portfolio expected credit loss is required for IFRS9 regulatory purposes. It starts with the estimation of scenario loss at loan level, and then aggregated and summed up by scenario probability weights to obtain portfolio expected loss. This estimated loss can vary significantly,...
Persistent link: https://www.econbiz.de/10015263936
In this paper, we study the so-called “wrong skewness” anomaly in Stochastic Frontiers (SF), which consists in the observed difference between the expected and estimated sign of the asymmetry of the composite error. We propose a more general and flexible specification of the SF model,...
Persistent link: https://www.econbiz.de/10015247097
This is an exploratory study that attempts to identify and provide empirical evidence on the possible determinants of the market capitalisation of the Harare Stock Exchange (HSE) with the view of understanding the development prospects of the HSE and other similar markets. The study used...
Persistent link: https://www.econbiz.de/10015216234
This work is the third, but not the last, in the cycle begun by the works [23, 22] about the new theory of experience and chance as the theory of co~events. Here I introduce the concepts of two co~event means, which serve as dual co~event characteristics of some co~event. The very idea of dual...
Persistent link: https://www.econbiz.de/10015257754
This paper demonstrates how sequential fractional Dickey-Fuller (FDF in short) test can be implemented in EViews. We first briefly introduce how to use the fracdiff an EViews add-in to compute the fractional difference of the Nile data. Next, we give the program that executes the sequential FDF...
Persistent link: https://www.econbiz.de/10015241494
In this paper we employ ML-II ε-contaminated class of priors to study the sensitivity of Bayes Reliability measures for an Inverse Gaussian (IG) distribution and Lognormal (LN) distribution to misspecification in the prior. The numerical illustrations suggest that reliability measures of both...
Persistent link: https://www.econbiz.de/10015217746
the relation between all the variables. The mean, quantile (including median) and mode re-gression estimators are proposed …
Persistent link: https://www.econbiz.de/10015221319
This paper deals with estimating peaked densities over the interval [0,1] using two-sided power distribution (Kotz, van Dorp, 2004). Such data were encountered in experiments determining certainty equivalents of lotteries (Kontek, 2010). This paper summarizes the basic properties of the...
Persistent link: https://www.econbiz.de/10015221380
Typical data sets employed by economists and financial analysts do not exceed a few hundred or thousand observations per series. However, in the last decade data sets containing tick-by-tick observations have become available. The studies of these data have turned up new and interesting facts...
Persistent link: https://www.econbiz.de/10015221788
We propose a multiplicative autoregressive conditional proportion (ARCP) model for (0,1)-valued time series, in the spirit of GARCH (generalized autoregressive conditional heteroscedastic) and ACD (autoregressive conditional duration) models. In particular, our underlying process is defined as...
Persistent link: https://www.econbiz.de/10015262339