On the existence of consistent rules to adjudicate conflicting claims: a constructive geometric approach

For the problem of adjudicating conflicting claims, a rule is consistent if the choice it makes for each problem is always in agreement with the choice it makes for each “reduced problem” obtained by imagining that some claimants leave with their awards and reassessing the situation from the viewpoint of the remaining claimants. We develop a general technique to determine whether a given two-claimant rule admits a consistent extension to general populations, and to identify this extension if it exists. We apply the technique to a succession of examples. I gratefully acknowledge support from NSF under grant SBR-9731431 and SES 0214691, and the comments of Carmen Bevia, Rodrigo Velez, Chun-Hsien Yeh, and a referee.     

On properties of division rules lifted by bilateral consistency

We consider the problem of adjudicating conflicting claims in the context of a variable population. A property of rules is “lifted” if whenever a rule satisfies it in the two-claimant case, and the rule is bilaterally consistent, it satisfies it for any number of claimants. We identify a number of properties that are lifted, such as equal treatment of equals, resource monotonicity, composition down and composition up, and show that continuity, anonymity and self-duality are not lifted. However, each of these three properties is lifted if the rule is resource monotonic.     

The Geopolitics of the Antarctic

A bstract . After space, the Antarctic Continent of more than 5 million square miles surrounding the South Pole is humanity's last relatively unexplored frontier Its land appears only where the 15,000 foot peaks of giant mountain ranges break through the ice. The most isolated of the world's seven continents, it was discovered by whalers but was explored only in the present centur. Successive explorations and finally establishment of research stations by 12 nations led to conflicting territorial claims. In 1959, 12 nations, including the U.S. and the U.S.S.R., (joined later by 8 others), concluded a treaty suspending claims, banning military activity and opening up the continent for free use for scientific work. The danger of a clash between socialist as well as capitalist imperialism was illustrated by the Falkland Island War of 1982 when Argentina invaded the dependency and was overwhelmed and expelled by Great Britain. Mutual commercial interests, however, limited military action.     

System‐Spanning Values Work and Entrepreneurial Growth in Family Firms

Culture and values are key drivers of corporate entrepreneurship in early stages of family firm development, but value conflicts often arise over time that progressively inhibit their entrepreneurial efforts. How can family firms reconcile conflicting values to sustain corporate entrepreneurship over time? Our 45‐year longitudinal case study of a large global family firm shows that family business leaders’ practices of invoking and flexibly using family and business values were crucial to achieve sustained entrepreneurial behaviour and growth over an extended period of time. We theorize these efforts as system‐spanning values work enfolding through specific family, business, and temporal mechanisms. By identifying and elucidating three types of values work (i.e., rooting, revitalizing, and spreading), our study advances current understanding of the micro‐foundations underpinning the relationship between values and entrepreneurship in family firms.     

Board gender diversity and environmental,social, and economic value creation: Does family ownership matter?

Prior literature on firm value creation for stakeholders has oversimplified and narrowed the concept of value down to “economic returns.” Although economic returns are fundamental to a firm's core stakeholders (i.e., shareholders), other legitimate stakeholders want “value” beyond economic returns. We define stakeholder value as the financial and nonfinancial returns a firm can offer to its legitimate stakeholders, and empirically investigate whether board gender diversity (BGD) improves our multidimensional measure of value. Using Thomson Reuters' ASSET4 data for U.K.‐listed firms available from Eikon for the period 2007–2017, we report a significant positive relationship between BGD and stakeholder value creation. In particular, BGD increases social and environmental value creation in addition to economic returns. Furthermore, our results suggest that even though gender‐diverse boards are associated with stakeholder value creation in family firms, this is only conspicuous for environmental value creation. The findings suggest that although female directors cater to the interests of broader stakeholder groups, family ownership causes them to mainly focus on environmental stakeholders. The study provides important implications for regulators, stakeholders, and academic scholars.     

Urban Citizenship and Right to the City: The Fragmentation of Claims

In this symposium, we explore how urban citizenship is about expressing, if not producing, difference, and how fragmentation of claims affects urban citizenship and right to the city movements with their universal, all‐inclusive ideals. Investigating social movements, political participation and conflicting diversities in public space in Tel Aviv and Berlin, we see a trend towards a diversification of interests, a weakening of movements, and even a competition over rights and resources rather than a development of mutual support and solidarities among various groups on the pathway to a livable city. This tension, we argue, deserves attention. Radical urban scholarship and politics need to better understand the historical and place‐specific contexts that structure the formation of citizenship claims and the courses that citizenship struggles take. Celebrations of urban citizenship as a more contextualized, community oriented, and bottom‐up framework (in comparison to national citizenship) should therefore be complemented by a careful investigation of their fragmented and fragmenting practices.     

Manipulation via merging and splitting in claims problems

In claims problems, we study coalitional manipulations via claims merging and splitting. We characterize (division) rules that are non-manipulable via (pairwise) splitting and that also satisfy standard axioms of equal treatment of equals, consistency, and continuity. And we obtain a similar result for non-manipulability via (pairwise) merging.Received: 22 January 2002, Accepted: 5 February 2003, JEL Classification: C70, C71, D70I am grateful to William Thomson for many helpful comments and suggestions. I also thank Murat Sertel and an anonymous referee for many helpful suggestions for the revision. All remaining errors are mine.     

Implementing sustainable sourcing—Does purchasing need to change?

The implementation of corporate sustainability relies strongly on the purchasing function implementing sustainable sourcing. To advance understanding of this implementation, this paper offers a threefold contribution. First, it operationalises sustainable sourcing and addresses different possibilities of ways it can be implemented according to the company-specific emphasis on each of the three sustainability dimensions; i.e., economic, environmental, and social aspects. Second, this paper identifies, based upon stakeholder theory, internal and external stakeholders and their specific salience to drive the implementation of sustainable sourcing. Furthermore, the content of those salient stakeholders' claims is analysed concerning its impact on individual, company-specific sustainable sourcing profiles. Third, this paper explores how the purchasing function may need to change its internal and external relationships due to and in the course of implementing sustainable sourcing. Covering these three aspects, this conceptual paper concludes with a framework of testable propositions and offers several avenues for further research.     

Secured lower bound, composition up, and minimal rights first for bankruptcy problems

We study the implications of secured lower bound when imposed together with minimal rights first or composition up for the resolution of conflicting claims. We show that the Talmud rule is the only rule satisfying secured lower bound, minimal rights first, and consistency. In addition, we show that if minimal rights first and consistency in the above characterization were replaced with composition up and null claims consistency, respectively, the constrained equal awards rule stands out as the only acceptable rule.     

Changing views of work and family roles: A symbiotic perspective

This paper criticizes work and family research for viewing work and family largely as conflicting role responsibilities. This occurs in spite of evidence that work and family role responsibilities appear to be mutually beneficial for both work and family systems. Using biological analogies, this paper suggests that it may be useful to examine work and family relationship from a symbiotic perspective. This includes both parasitism and mutualism. The paper concludes by suggesting ways in which this analogy could guide future research efforts in work and family roles.     

一种改进的遗传算法及其在函数优化中的应用

使用简单遗传算法(SGA)求解线性方程组时,由于易发生"早熟"现象,简单遗传算法求出的数值解误差很大甚至会失真。针对此问题,本文提出了一种改进的遗传算法(IGA),并设计了选择算子,交叉算子和变异算子。为了提高简单遗传算法抗"早熟"的能力,采用遗传算子结合惩罚函数,最佳个体保留以及种群迁移等措施。最后以核磁共振测井数学模型线性化后的大型病态线性方程组为例,对算法进行了测试。实验结果表明:同简单遗传算法相比较,IGA在一定程度上提高了数值解的精度。     

A mechanism implementing the proportional solution

We consider the problem of a commonly owned technology which transforms a single input into a single output. We are interested in implementing a social choice rule called theproportional solution. We introduce a mechanism which implements the proportional solution in Nash, strong (Nash) and undominated Nash equilibria. In the mechanism each agent announces only two numbers which can be interpreted as the total output and her share of the total input-output combination. This paper was originally titled "Doubly implementing the proportional solution." I would like to thank my advisor William Thomson for his detailed comments and suggestions. I would also like to thank Jeffrey Banks and Sung-Whee Shin for their comments. Two anonymous referees and an editor’s comments improved this paper substantially.     

Characterization of an extended Walrasian concept for open economies

The consistency axiom, which is quite prominent in the framework of concepts of cooperative games, can be used to characterize concepts for economies as well. Dagan [Dagan, N., 1996b. Consistency and the Walrasian allocations correspondence. A revised version of Economics Working Paper No. 151, Universitat Pompeu Fabra, Barcelona, Spain.] and van den Nouweland et al. [van den Nouweland, A., Peleg, B., Tijs, S., 1996. Axiomatic characterization of the Walras correspondence for generalized economies. Journal of Mathematical Economics 25, 355–372.] used the setting of open economies to give axiomatic characterizations of an extension of the Walras correspondence. Here, we will characterize the proportional Walrasian concept, an extension which was proposed by Thomson [Thomson, W., 1992. Consistency in exchange economies. Mimeo, Department of Economics, University of Rochester, Rochester, NY.] and which is non-empty on a much bigger class of open economies. Apart from consistency properties and other frequently used axioms, we also employ an axiom on distribution.     

Price functionals with bid–ask spreads: an axiomatic approach

In Jouini and Kallal [Jouini, E., Kallal, H., 1995. Martinagles and arbitrage in securities markets with transaction costs. Journal of Economic Theory 66 (1) 178-197], the authors characterized the absence of arbitrage opportunities for contingent claims with cash delivery in the presence of bid–ask spreads. Other authors obtained similar results for a more general definition of the contingent claims but assuming some specific price processes and transaction costs rather than bid–ask spreads in general (see for instance, Cvitanic and Karatzas [Cvitanic, J., Karatzas, I., 1996. Hedging and portfolio optimization under transaction costs: a martinangle approach. Mathematical Finance 6, 133-166]). The main difference consists of the fact that the bid–ask ratio is constant in this last reference. This assumption does not permit to encompass situations where the prices are determined by the buying and selling limit orders or by a (resp. competitive) specialist (resp. market-makers). We derive in this paper some implications from the no-arbitrage assumption on the price functionals that generalizes all the previous results in a very general setting. Indeed, under some minimal assumptions on the price functional, we prove that the prices of the contingent claims are necessarily in some minimal interval. This result opens the way to many empirical analyses.     

Whose Right to Jerusalem?

Jerusalem is a city mired in spatial conflict. Its contested spaces represent deep conflicts among groups that vary by national identity, religion, religiosity and gender. The omnipresent nature of these conflicts provides an opportunity to look at Henri Lefebvre's concept of the right to the city (RTC). The RTC has been adopted and celebrated as a political tool for positive change, enabling communities to take control of space. Based on extensive fieldwork and in‐depth interviews, this article explores the complexity of the RTC principles and examines three urban battlefields in Jerusalem — Bar‐Ilan Street, the Kotel and the Orient House. The RTC is a powerful idea, providing the opportunity to examine people's everyday activities within the context of how space can be used to support their lives. Yet Jerusalem's myriad divisions produce claims by different groups to different parts of the city. In Jerusalem, the RTC is not a clear vision but a kaleidoscope of rights that produces a fragmented landscape within a religious and ethno‐national context governed by the nation state — Israel. The growth of cultural and ethnic diversity in urban areas may limit the possibility for a unified RTC to emerge in an urban sea of demands framed by difference. Space‐based cultural conflict exemplifies urban divisions and exacerbates claims to ‘my Jerusalem’, not ‘our Jerusalem’. Identity‐based claims to the RTC appear to work against, not for, a universalistic RTC.     

Remaking Equality: Community Governance and the Politics of Exclusion in Bogota's Public Spaces

Bogota's public space policy is often credited with promoting inclusionary principles. In this article, I explore critically the content of Bogota's articulation of equality in public space policy. In so doing, I present a critical view of the work Bogota's insistence on equality does to mediate class relations in the city, relying on deeply held conceptions of both social extremes. This results in the construction of a version of social harmony in public space that at once depoliticizes the claims to public space of subjects such as street vendors and the homeless and claims a new role for the middle class in the city. The analysis focuses on two examples of community governance schemes, documenting the logics and methods used by communities to implement official visions of equality and justify the exclusion of street vendors and homeless people from the area. By looking at the articulation of these exclusions in local class politics through seemingly inclusionary rhetoric, the article accounts for ‘post‐revanchist’ turns in contemporary urban policy, while anchoring its production in local processes of community governance.     

Fluidity,Identity, and Organizationality: The Communicative Constitution of Anonymous

This paper examines how fluid social collectives, where membership is latent, contested, or unclear, achieve ‘organizationality’, that is, how they achieve organizational identity and actorhood. Drawing on the “communicative constitution of organizations” perspective, we argue that the organizationality of a social collective is accomplished through ‘identity claims’ – i.e., speech acts that concern what the social collective is or does – and negotiations on whether or not these claims have been made on the collective's behalf. We empirically examine the case of the hacker collective Anonymous and analyse relevant identity claims to investigate two critical episodes in which the organizationality of Anonymous was contested. Our study contributes to organization studies by showing that fluid social collectives are able to temporarily reinstate organizational actorhood through the performance of carefully prepared and staged identity claims.     

Decision-making under risk: Editing procedures based on correlated similarities, and preference overdetermination

This paper studies editing procedures based on similarity relations in an expected utility maximization context. It shows that these procedures are compatible both with a family of difference-correlated similarities on the prize space and with a set of families (one for each probability) of ratio-correlated similarity relations on the probability space. In view of the properties satisfied by these families of correlated similarities, it is suggested that Rubinstein's preference overdetermination problem can be avoided. Received: 17 April 1996 / Accepted: 24 September 1998     

What do U.S. biopharmaceutical companies get from patents and research and development spikes for their dynamic corporate performance?

This paper investigates how patents and research and development (R&D) spikes affect the corporate performance of 863 firm-year observations of U.S. biopharmaceutical companies. First, a dynamic data envelopment analysis model is adopted to evaluate the performance of the U.S. biopharmaceutical companies. Then, ordinary least squares regression is used to explore the effects of three patent-related variables (patent counts, citations, and claims) and R&D spikes on corporate performance. This study finds positive impacts of patent counts, citations, and claims on corporate performance. In addition, the results show that R&D spikes have negative contemporaneous effects and time-lagged effects on corporate performance.     

Work-to-family enrichment and gender inequalities in eight European countries

Abstract

All social roles have positive and rewarding as well as negative/problematic aspects. Research on the work–family interface has predominantly focused on conflicting roles. In contrast, this paper extends research on work–family enrichment (WFE), a positive aspect of work and gender differences in WFE in a cross-national context. Drawing upon social role theory and the culture sensitive theory on work–family enrichment, we examined gender differences in experiences of developmental WFE in a sample of service sector employees in eight European countries. In line with traditional gender roles, women reported more WFE than men. The relationship was moderated by both an objective and subjective measure of gender egalitarianism but in the opposite direction as hypothesized. The gender gap in WFE was larger in more gender-egalitarian countries, where women may be better able to transfer resources from the work domain to benefit their family role than in low egalitarian societies. National differences in labour market factors, family models and the public discourse on work–life balance mainly explain the unanticipated findings.