Showing 1 - 10 of 6,972
Various quasi-Newton methods periodically add a symmetric "correction" matrix of rank at most 2 to a matrix approximating some quantity A of interest (such as the Hessian of an objective function). In this paper we examine several ways to express a symmetric rank 2 matrix [delta] as the sum of...
Persistent link: https://www.econbiz.de/10012479003
unemployment, called ranking. With the filling of vacancies unaffected by the selection rule, both equilibria have the same … being a worker with zero unemployment duration, the wage with ranking is much more sensitive to changes in the tightness of …
Persistent link: https://www.econbiz.de/10012475646
unbiased informative ranking. The existence of the ranking might affect the welfare of all consumers negatively. With rigid … prices, the ranking induced change in demand can be detrimental to all consumers in markets featuring rationing or … consumption externalities. With perfectly flexible prices, the ranking might increase firms' market power, and hence lead to …
Persistent link: https://www.econbiz.de/10012457583
While the Sharpe ratio is still the dominant measure for ranking risky assets, a substantial effort has been made over … ranking measure which, under a regularity condition, correctly ranks risks relative to the original investor problem for a … probability distributions. This paper also explores the theoretical foundations of risk ranking, including proving a key …
Persistent link: https://www.econbiz.de/10012459163
We propose a Bayesian factor analysis model to rank the health of localities. Mortality and morbidity variables empirically contribute to the resulting rank, and population and spatial correlation are incorporated into a measure of uncertainty. We use county-level data from Texas and Wisconsin...
Persistent link: https://www.econbiz.de/10012459212
For 35 leading painters who lived in France during the first century of modern art, this paper uses textbook illustrations as the basis for measuring the importance of both painters and individual paintings. The rankings pose an interesting puzzle: why do some of the greatest artists not produce...
Persistent link: https://www.econbiz.de/10012471378
these confidence sets to draw inferences about uncertainty in the ranking of economics journals and universities by impact …
Persistent link: https://www.econbiz.de/10012938737
We investigate a method for eliciting relative poverty rankings that aggregates partial poverty rankings obtained from multiple individuals. We first demonstrate that the method works in principle, then apply it in urban Côte d'Ivoire. We find that constructed rankings are often incomplete, not...
Persistent link: https://www.econbiz.de/10013191005
prominent example is the ranking of political candidates or parties using the estimated share of support each one receives in … than the true share of support, there may be considerable uncertainty concerning the true ranking of the political … our finite-sample confidence sets are informative across the entire ranking of political parties, even in Australian …
Persistent link: https://www.econbiz.de/10012696428
We rank counties in the United States of America with respect to population health. We utilize the five observable county health variables used to construct the University of Wisconsin Population Health Institute's County Health Rankings (CHRs). Our method relies on a factor analysis model to...
Persistent link: https://www.econbiz.de/10012481841