Showing 1 - 10 of 12
This study investigates the quality of direct probability judgments and quantile estimates with a focus on calibration and consistency. The two response modes use different measures of miscalibration, so it is difficult to directly compare their relative (in)accuracy. We employed a more refined...
Persistent link: https://www.econbiz.de/10009191751
We propose a new procedure for providing confidence-interval estimators of the mean of a covariance-stationary process. The procedure, a modification of the method of batch means, is an improvement over existing methods when the process displays strong correlation and a comparatively small...
Persistent link: https://www.econbiz.de/10009191646
The coverage function presented here measures confidence interval robustness. It is suggested that this function be used in the analysis of empirical interval estimator studies. Some approaches for determining appropriate sample sizes in such experiments are also discussed. A short study of two...
Persistent link: https://www.econbiz.de/10009204606
We develop new asymptotically valid confidence interval estimators (CIE's) for the underlying mean of a stationary simulation process. The new estimators are weighted generalizations of Schruben's standardized time series area CIE. We show that the weighted CIE's have the same asymptotic...
Persistent link: https://www.econbiz.de/10009214300
We wish to estimate the variance of the sample mean from a continuous-time stationary stochastic process. This article expands on the results of a technical note (Goldsman and Schruben 1990) by using the theory of standardized time series to investigate weighted generalizations of Schruben's...
Persistent link: https://www.econbiz.de/10009218065
Asymptotic confidence interval estimators of the variance parameter \sigma <sup>2</sup> = lim<sub>n - \infty </sub> n Var((1/n) \sum <sup>n</sup><sub>i = 1</sub> X<sub>i</sub>) are described in this paper for observations X<sub>1</sub>, X<sub>2</sub>,...,X<sub>n</sub> from a strictly stationary phi-mixing stochastic process. They are based on asymptotic properties of the...
Persistent link: https://www.econbiz.de/10009218283
In this paper, we investigate how market competition contributes to the expression of overconfidence among those … helps advisors sell their advice. However, competition between advisors in the market further exacerbates overconfidence. In … a third study, we demonstrate that the market competition drives overconfidence even when advisors vary in quality. We …
Persistent link: https://www.econbiz.de/10009197870
overconfidence. We also find evidence that the market anticipates future deals based on the CEO's acquisition history and impounds …
Persistent link: https://www.econbiz.de/10009204421
This paper derives two mechanisms through which Bayesian-rational individuals with differing priors will tend to be relatively overconfident about their estimates and predictions, in the sense of overestimating the precision of these estimates. The intuition behind one mechanism is slightly...
Persistent link: https://www.econbiz.de/10009204601
This paper provides evidence that analysts who have predicted earnings more accurately than the median analyst in the previous four quarters tend to be simultaneously less accurate and further from the consensus forecast in their subsequent earnings prediction. This phenomenon is economically...
Persistent link: https://www.econbiz.de/10009208560