Showing 1 - 10 of 123
A general parametric framework is developed for pricing S&P500 options. Skewness and leptokurtosis in stock returns as …
Persistent link: https://www.econbiz.de/10005087577
. For a nominal variable, the quality of a prediction is measured by the probability of error; for a numeric variable, it is …Statistics is commonly taught as a set of techniques to aid in decision making, by extracting information from data. It … establish a set of probability models which can be used to predict values of one or more variables. Such a model constitutes …
Persistent link: https://www.econbiz.de/10005149116
The main objective of this study is to investigate the rebustness of the popular Durbin-Watson (DW), Langrage multiplier (LM), Box-Pierce (BP) and Ljung-Box (LB) tests and their corrected versions against autoregressive distrurbances in the presence of dynamic heteroscedastic disturbances with...
Persistent link: https://www.econbiz.de/10005581120
properties of test statistics for cointegration when the aggregate data consists of heterogeneous individuals. …
Persistent link: https://www.econbiz.de/10005427607
conditional residuals. When used together, these residuals allow identification of outliers, model mis-specification and mean …
Persistent link: https://www.econbiz.de/10005581126
In this paper we present a test statistic, which will be used to test for significant differences between generating processes of two time series that may be logically connected. The test statistic is based on the differences between estimated parameters of the autoregressive models which are...
Persistent link: https://www.econbiz.de/10005427632
The concept of fractional cointegration, whereby deviations from an equilibrium relationship follow a fractionally integrated process, has attracted some attention of late. The extended concept allows cointegration to be associated with mean reversion in the error, rather than requiring the more...
Persistent link: https://www.econbiz.de/10005149058
In this paper Kuznets' U-Curve hypothesis is tested on two unbalanced panel data sets of 47 and 62 countries, for the period 1970-93, using two-way fixed and random effects models. Several competing model specifications are estimated and the one best fitting the data is selected by appropriate...
Persistent link: https://www.econbiz.de/10005581110
prediction intervals which incorporate an allowance for sampling error associated with parameter estimates. The effect of …The problem of constructing prediction intervals for linear time series (ARIMA) models is examined. The aim is to find …
Persistent link: https://www.econbiz.de/10005581130
This article derives analystic finite sample approximations to the bias and standard error of a class of statistics … which test the hypothesis of no serial correlation in market returns. They offer an alternative to both the widely used …
Persistent link: https://www.econbiz.de/10005581156