Social commitments provide a powerful representation for modeling multi-agent interactions without relinquishing part of agents autonomy and flexibility. However, distinguishing between different but related types of conditional commitments, a natural frame of social commitments, is not considered yet. In this paper, we define a new logical language, CTL, which extends CTL with modalities to re...

In Poland’s region of Opole Silesia, ethnic Germans constitute one-third of the populace. Most of them (re-)acquired German citizenship in the 1990s. This also meant obtaining EU citizenship. Thus, they form the largest compact group of German/EU citizens residing outside Germany/the EU. Should Poland join the EU with too long a derogation period on the free movement of its citizens throughout ...

We introduce the notion of hybrid trapdoor commitment schemes. Intuitively a hybrid trapdoor commitment scheme is a primitive which can be either an unconditionally binding commitment scheme or a trapdoor commitment scheme depending on the distribution of commitment parameters. Moreover, such two possible distributions are computationally indistinguishable. Hybrid trapdoor commitments are relat...

Selective opening attacks against commitment schemes occur when the commitment scheme is repeated in parallel and an adversary can choose depending on the commit-phase transcript to see the values and openings to some subset of the committed bits. Commitments are secure under such attacks if one can prove that the remaining, unopened commitments stay secret. We prove the following black-box con...

new millennium began when half of world population is living in the cities. predictions represent that the proportion of citizenship will reach to 65 percent by 2050. one the phenomena affected by living in the cities is citizenship. citizenship phenomenon is one of the phenomena that in in the era of social political evolution in the world have received much attention. presentation of theories...

This paper investigates the use of high-level action languages for representing and reasoning about commitments in multiagent domains. The paper introduces the language Lmt with features motivated by the problem of representing commitments; in particular, it shows how Lmt can handle both simple commitment actions and complex commitment protocols. The semantics ofLmt provides a uniform solution ...

This article examines the relationship among perceived organizational support, affective organizational commitment, and employee citizenship behavior in Kuwaiti business organizations. Employees’ affective organizational commitment is proposed to mediate the relationship between perceived organizational support and employee citizenship behavior. Data were collected from 261 employees affiliated...

The objective of this paper is to examine variations in perceptions of access to health care across and within 29 European countries. Using data from the 2008 round of the European Social Survey, we investigate the likelihood of an individual perceiving that they will experience difficulties accessing health care in the next 12 months, should they need it (N=51,835). We find that despite most E...

We report an experiment designed to test the influence of noisy commitments on efficiency in a simple bargaining game. We investigate two different levels of commitment reliability in a variant of the peasant-dictator game. Theoretical analysis suggests that the reliability of commitments in this game does not affect efficiency. We find that accurate commitments promote efficiency, as expected ...