Search Results - subject:"Radial symmetry"

Radial symmetry does not preclude condorcet cycles if different voters weight the issues differently

Potthoff, Richard F. - In: Economies : open access journal 10 (2022) 7, pp. 1-17

Radial symmetry, by our definition, is a precise condition on continuous ideal-point distributions, rarely if ever … cycle exists. Radial symmetry precludes the existence of Condorcet cycles and thus guarantees a Condorcet winner; but this … under radial symmetry, if the weighting of issues varies across voters. This finding may be of more than theoretical value …

Persistent link: https://www.econbiz.de/10013337663

New concepts of symmetry for copulas

Mangold, Benedikt - 2017

of the symmetry concepts are investigated for bivariate copulas and a connection to radial symmetry is established. Two … deviations. It is shown that one of the new tests can also be used to test for radial symmetry, which results in a similar power … of detecting bivariate radial symmetry compared to recently published nonparametric tests. Further, an application to …

Persistent link: https://www.econbiz.de/10011644778

New concepts of symmetry for copulas

Mangold, Benedikt - 2017

of the symmetry concepts are investigated for bivariate copulas and a connection to radial symmetry is established. Two … deviations. A combination of both tests can be used to test for radial symmetry. It is shown that this combined test has a … similar power in detecting bivariate radial symmetry compared to recently published nonparametric tests. Further, an …

Persistent link: https://www.econbiz.de/10011600150

New concepts of symmetry for copulas

Mangold, Benedikt - 2017

Persistent link: https://www.econbiz.de/10011644608

Majority Voting Over Lotteries: Conditions for Existence of a Decisive Voter

Duggan, John - In: Economics Bulletin 34 (2014) 1, pp. 263-270

This note extends known sufficient conditions for existence of a decisive voter in pairwise voting over lotteries. The preferred lottery of such a voter always coincides with the lottery preferred by a majority, meaning voting can be reduced to a decision problem of the decisive voter. The...

Persistent link: https://www.econbiz.de/10010836057

Necessary gradient restrictions at the core of a voting rule

Duggan, John - In: Journal of mathematical economics 79 (2018), pp. 1-9

Persistent link: https://www.econbiz.de/10012105579

Measures of radial asymmetry for bivariate random vectors

Dehgani, Azam; Dolati, Ali; Úbeda-Flores, Manuel - In: Statistical Papers 54 (2013) 2, pp. 271-286

This article considers the problem of measuring radial asymmetry of a bivariate vector of continuous random variables whose components are symmetric about the center of symmetry. We introduce a set of axioms for measures of radial asymmetry, define new measures satisfying the axiomatic, study...

Persistent link: https://www.econbiz.de/10010998629

Choosing joint distributions so that the variance of the sum is small

Knott, Martin; Smith, Cyril - In: Journal of Multivariate Analysis 97 (2006) 8, pp. 1757-1765

The paper considers how to choose the joint distribution of several random variables each with a given marginal distribution so that their sum has a variance as small as possible. A theorem is given that allows the solution of this and of related problems for normal random variables. Several...

Persistent link: https://www.econbiz.de/10005021358