scholarly journals Facial width-to-height ratio is associated with agonistic and affiliative dominance in bonobos ( Pan paniscus )

2019 ◽  
Vol 15 (8) ◽  
pp. 20190232 ◽  
Author(s):  
J. S. Martin ◽  
N. Staes ◽  
A. Weiss ◽  
J. M. G. Stevens ◽  
A. V. Jaeggi
Keyword(s):  
Social Dominance ◽  
Pan Paniscus ◽  
Female Dominance ◽  
Facial Morphology ◽  
Costs And Benefits ◽  
Height Ratio ◽  
Dominance Behaviour ◽  
Status Seeking ◽  
Dominance Strategies

Facial width-to-height ratio (fWHR) is associated with social dominance in human and non-human primates, which may reflect the effects of testosterone on facial morphology and behaviour. Given that testosterone facilitates status-seeking motivation, the association between fWHR and behaviour should be contingent on the relative costs and benefits of particular dominance strategies across species and socioecological contexts. We tested this hypothesis in bonobos ( Pan paniscus ), who exhibit female dominance and rely on both affiliation and aggression to achieve status. We measured fWHR from facial photographs, affiliative dominance with Assertiveness personality scores and agonistic dominance with behavioural data. Consistent with our hypothesis, agonistic and affiliative dominance predicted fWHR in both sexes independent of age and body weight, supporting the role of status-seeking motivation in producing the link between fWHR and socioecologically relevant dominance behaviour across primates.

Hostile Takeovers and Anti-takeover Defenses in the Russian Corporate Market

2007 ◽  
pp. 70-84 ◽  
Author(s):  
E. Demidova
Keyword(s):  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Benefit Analysis ◽  
Costs And Benefits ◽  
Hostile Takeovers ◽  
Russian Market ◽  
Takeover Defenses ◽  
The Cost ◽  
European Markets

This article analyzes definitions and the role of hostile takeovers at the Russian and European markets for corporate control. It develops the methodology of assessing the efficiency of anti-takeover defenses adapted to the conditions of the Russian market. The paper uses the cost-benefit analysis, where the costs and benefits of the pre-bid and post-bid defenses are compared.

The Ethics of Petroleum

2017 ◽  
Author(s):  
Jonathon W. Moses ◽  
Bjørn Letnes
Keyword(s):  
Corporate Social Responsibility ◽  
Social Responsibility ◽  
Host Country ◽  
Corporate Citizenship ◽  
Costs And Benefits ◽  
Political Actors ◽  
Oil Companies ◽  
Corporate Social ◽  
Oil Company

This chapter considers the role of international oil companies (IOCs) as global political actors with significant economic and political power. In doing so, we weigh the ethical costs and benefits for individuals, companies, and states alike. Using the concepts of “corporate social responsibility” (CSR) and “corporate citizenship” as points of departure, we consider the extent to which international oil companies have social and political responsibilities in the countries where they operate and what the host country can do to encourage this sort of behavior. We examine the nature of anticorruption legislation in several of the sending countries (including Norway), and look closely at how the Norwegian national oil company (NOC), Statoil, has navigated these ethical waters.

The Acceptance of Party Unity in Parliamentary Democracies

2017 ◽  
Author(s):  
David M. Willumsen
Keyword(s):  
Political Parties ◽  
Costs And Benefits ◽  
Parliamentary Democracies ◽  
Survey Questions ◽  
Ideal Policy ◽  
Central Argument ◽  
The Individual ◽  
Policy Incentives

The central argument of this book is that voting unity in European legislatures is not primarily the result of the ‘disciplining’ power of the leadership of parliamentary parties, but rather the result of a combination of ideological homogeneity through self-selection into political parties and the calculations of individual legislators about their own long-term benefits. Despite the central role of policy preferences in the subsequent behaviour of legislators, preferences at the level of the individual legislator have been almost entirely neglected in the study of parliaments and legislative behaviour. The book measures these using an until now under-utilized resource: parliamentary surveys. Building on these, the book develops measures of policy incentives of legislators to dissent from their parliamentary parties, and show that preference similarity amongst legislators explains a very substantial proportion of party unity, yet alone cannot explain all of it. Analysing the attitudes of legislators to the demands of party unity, and what drives these attitudes, the book argues that what explains the observed unity (beyond what preference similarity would explain) is the conscious acceptance by MPs that the long-term benefits of belonging to a united party (such as increased influence on legislation, lower transaction costs, and better chances of gaining office) outweigh the short-terms benefits of always voting for their ideal policy outcome. The book buttresses this argument through the analysis of both open-ended survey questions as well as survey questions on the costs and benefits of belonging to a political party in a legislature.

Vertical Trade Relationships: The Role of Dependence and Symmetry in Attaining Organizational Goals

1992 ◽  
Vol 29 (1) ◽  
pp. 65-75 ◽  
Author(s):  
Lauranne Buchanan
Keyword(s):  
Performance Goals ◽  
Costs And Benefits ◽  
Strong Ties ◽  
Organizational Goals ◽  
Vertical Trade ◽  
Trade Relationships ◽  
The Impact ◽  
Trade Partners

The perspective that dependence on vertical trade partners should be avoided has been countered recently by the view that there are advantages to strong ties between firms. The author offers a framework from which trade partners can assess the potential costs and benefits of trade relationships and empirically investigates the impact of trade relationships on the firm's ability to realize performance goals.

Aggression, and the Acquisition and Function of Social Dominance in Female Anolis Carolinensis

Behaviour ◽  
1996 ◽  
Vol 133 (15-16) ◽  
pp. 1265-1279 ◽  
Author(s):  
Cliff H. Summers ◽  
Thomas J. Andrews
Keyword(s):  
Social Interactions ◽  
Site Selection ◽  
Social Dominance ◽  
Anolis Carolinensis ◽  
Resource Acquisition ◽  
Male Courtship ◽  
Body Color ◽  
Courtship Display ◽  
And Function

AbstractFemale green anoles, Anolis carolinensis, were paired in terraria to investigate behavioral components of social interaction. Resources (perching sites, prey, and males as potential mates) were limited to assess their importance to cohabiting females. During interaction, paired females exhibited aggressive social behavior which contributed to the development of dominant-subordinate relationships. Dominant status and its relationship to differential resource acquisition was defined primarily by frequency of displacement of another female. Along with displacement, dominant females also had increased frequency of assertion displays, challenge displays, attacks and biting (Figs 1 & 2). Subordinate females were displaced more often and assumed submissive postures. No differences were found between dominant and subordinate females for perch site selection, body color or in prey capturing latency or success (Figs 3 & 4). Perch site elevation was not different between dominant and subordinate females, but was significantly lower than males. The color of paired females was not different unless males were present, in which case dominant females were darker. Paired females also respond differently to courtship display (Fig. 5). Dominant females responded with displays significantly more often than subordinate females to male courtship, indicating receptivity. The role of dominant-subordinate relationships among female A. carolinensis may include courtship and reproductive success as an important component, with consequences for the outcome of aggressive and reproductive social interactions with males.

scholarly journals Prenatal Androgen Effects as a Proximate Mechanism Underpinning Variation in Social Behavior Among Female Nonhuman Primates

2021 ◽  
Author(s):  
Caroline Howlett ◽  
Brandon C. Wheeler
Keyword(s):  
Social Behavior ◽  
Nonhuman Primates ◽  
Social Systems ◽  
Female Dominance ◽  
Small Female ◽  
Proximate Mechanism ◽  
Cooperative Behaviors ◽  
Androgen Effects ◽  
Prenatal Androgen

AbstractWhile the role of ecological factors in shaping primate social systems has been a central focus for decades, less attention has been given to phylogenetic relationships and the potential role of underlying proximate mechanisms. This study aimed to investigate the relationship between one such proximate mechanism, prenatal androgen effects (PAEs), and aspects of social behavior in female nonhuman primates using the 2D:4D ratio as a proxy for PAEs and phylogenetically controlled methods. In general, female 2D:4D ratios were highest in monogamous species (low inferred PAEs) and lowest in polygynandrous and polygynous species (high inferred PAEs). 2D:4D ratios also varied with the form of polygyny/polygynandry, potentially with regard to the need for competitive over cooperative behaviors and the intensity of female reproductive competition. Species characterized by female dominance had lower 2D:4D ratios than species characterized by male dominance or codominance. There were no significant relationships between 2D:4D ratio and either degree of frugivory or group size. Relationships between 2D:4D ratios and the directional consistency index and 2D:4D ratios and rates of female–female agonism were also nonsignificant although sample sizes for both of these variables were small. Female social relationships are a manifestation of complex competitive and cooperative behaviors and the results suggest that PAEs may act as a proximate mechanism underlying the expression of certain aspects of behavior in female primates in ways that are adaptive to their social system.

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