In this paper, we present a variant of Datalog language (we call it Datalog ) able to deal with weights on ground facts and to consequently compute a feedback result for the goal satisfaction. The weights are chosen from a proper c-semiring. In our context, our goal is to use this language as a semantic foundation for languages for expressing trust relationships. As a matter of fact, many of th...

Sharing sensitive information across security domains is an important requirement for knowledge intensive collaborative work, but such sharing may impose risks on security and privacy integrity. Research has increasingly recognized the role of trust in minimizing the risk of information sharing across untrusted or unknown entities. To this extent, trust negotiations[1][3][15][20] have emerged a...

Grounded Theory provides a useful approach for eliciting and justifying subjective characteristics of individuals. A Grounded Theory analysis is carried on individuals who share pictures, with a view to developing a trust management policy model of indiscretion regarding the sharing of photographs.

Managerial ability plays a vital role in the performance of business enterprises; however, such efforts are not directly observable. This study estimates managerial within insurance sector economy based on two data sets from different Asian countries. We estimate insurer-wise efficiency using Data Envelopment Analysis (DEA) and regress logarithm obtained technical set contextual variables influ...

This study assesses the influence of managerial responses to online customer reviews on product sales. We leverage a natural experiment provided by two online travel agencies. Both agents allow customers to post reviews on hotels, but only one of the travel agents allows hotel management to post managerial responses. Using a difference-in-difference approach, we find that managerial responses h...

CEOs are infrequently fired for poor performance (Jensen and Murphy, 1990). While financial distress is associated with higher managerial turnover, studies show that incumbent managers often retain control of the firm even in bankruptcy. In this paper, we study how inalienable managerial entrenchment – when it is costly to fire a manager even after poor performance – affects a manager's ability...

BACKGROUND This study was conducted to design an on job-training model for the managers of the Iranian Social Security Organization (ISSO) hospitals and any other similar setting. METHODS A five dimensional model (i.e. knowledge, ability, managerial skills, personality attributes and attitudes) with 187 components was designed. The model was validated through seeking the view of experts and a...

We examine the operating performance of Thai firms after they go public. Overall, we find that their performance declines. We then explore the relationship between managerial ownership and the change in firm performance. We find that firms with ‘low’ and ‘high’ levels of managerial ownership experience positive relationships between managerial ownership and the change in performance (alignment-...

Purpose The purpose of this paper is to provide an overview of the issues involved in managerial control and managerial identity in relation to the idea of a post-bureaucratic organization. In addition it introduces the papers in this special issue. Design/methodology/approach The paper identifies the increasing complexity of issues of managerial control and managerial identity that arise from ...