An Audit Logic for Accountability

We describe and implement a policy language. In our system, agents can distribute data along with usage policies in a decentralized architecture. Our language supports the specification of conditions and obligations, and also the possibility to refine policies. In our framework, the compliance with usage policies is not actively enforced. However, agents are accountable for their actions, and may be audited by an authority requiring justifications.Comment: To appear in Proceedings of IEEE Policy 200

Knowledge Representation Concepts for Automated SLA Management

Outsourcing of complex IT infrastructure to IT service providers has increased substantially during the past years. IT service providers must be able to fulfil their service-quality commitments based upon predefined Service Level Agreements (SLAs) with the service customer. They need to manage, execute and maintain thousands of SLAs for different customers and different types of services, which needs new levels of flexibility and automation not available with the current technology. The complexity of contractual logic in SLAs requires new forms of knowledge representation to automatically draw inferences and execute contractual agreements. A logic-based approach provides several advantages including automated rule chaining allowing for compact knowledge representation as well as flexibility to adapt to rapidly changing business requirements. We suggest adequate logical formalisms for representation and enforcement of SLA rules and describe a proof-of-concept implementation. The article describes selected formalisms of the ContractLog KR and their adequacy for automated SLA management and presents results of experiments to demonstrate flexibility and scalability of the approach.Comment: Paschke, A. and Bichler, M.: Knowledge Representation Concepts for Automated SLA Management, Int. Journal of Decision Support Systems (DSS), submitted 19th March 200

Images of Person-Organization Fit: Elements Affecting Employee Organizational Behavior

The purpose of the paper is to build upon the existing literature a new approach to personorganization fit, in particular, employees’ perception of the P-O fit, taking into consideration two main criteria: 1) the level of formalization as a company’s characteristics and 2) an employee’s certainty orientation as a person’s characteristics. The congruence between the situational factor (level of formalization) and personal traits (certainty orientation) influence individual organizational behavior. A two-dimension model illustrated by a four-element matrix is created by the author to present the concept and describe employees’ organizational behaviors. There are four images of P-O fit developed in the paper: 1) a kayak on a stormy ocean 2) ferries on a lake, 3) a cruise ship in a pond and 4) yacht on friendly seas

Explorative R&D collaboration: Searching for effective and efficient governance mechanisms.

Explorative R&D collaboration is an important alternative for the internal development of new technologies. The high failure rate of this type of inter-organizational collaboration, however, indicates that governing explorative R&D collaboration is not a straightforward task. Moreover, we argue that different theoretical perspectives have formulated contradictory advice of how to govern explorative R&D collaboration. Given high risks of opportunistic behavior and high coordination costs within explorative R&D collaboration, Transaction Cost Economics and Organization Theory emphasize the need for formal governance mechanisms. The innovation literature, however, stresses that formal governance mechanisms prohibit the carrying out of explorative activities which are necessary to develop new technologies. We also suggest two alternatives to address these paradoxical requirements. In specific, we argue that effective and efficient governance of explorative R&D collaboration can be achieved by 1) collecting second-hand information about potential partners, allowing for the substitution of formal governance by relational governance, and 2) combining formal and relational governance mechanisms. Based on these theoretical findings, we emphasize the importance of longitudinal, multi-level research to study the characteristics and dynamics of different governance mechanisms within inter-organizational collaboration.Behavior; Characteristics; Coordination; Cost; Costs; Dynamics; Economics; Governance; Information; Innovation; Organization theory; R&D; Requirements; Research; Risk; Studies; Substitution; Technology; Theory; Transaction cost;

Banking liquidity as a leading approach to risk management

For the modern model of the market there are inherent existence of both a set of possibilities and a large number of hazards that are waiting for economic agents and which are generated by the need to make decisions in the conditions of considerable uncertainty about the future. Liquidity risk is one of the central places in the system of bank risks, is closely related to solvency and financial stability, and therefore its management is an extremely important element of financial management of the bank. This paper is devoted to the consideration of theoretical approaches to the management of bank liquidity risks, as well as understanding the risk of unbalanced liquidity and its place in the system of bank risks. In the course of the study, the essence of the concepts of uncertainty, risk as such, economic risk and its varieties, including banking is gradually clarified. We offer our own definition of "bank risk" and describe its essence. Based on the understanding of the concepts of bank risks, liquidity balance, bank liq uidity, the essence of the risk of unbalanced liquidity is disclosed, its characteristics and main aspects of management are determined. In determining the risk of liquidity as a probability of a future state, when the bank may suffer losses due to the imbalance of demand for liquidity and availability at a certain point in time, we believe that the essence of liquidity management is reduced to the maximum balance of demand for liquid assets and their actual availability in a certain moment of time using special tools. Our paper also reveals the mechanism of information influence on bank liquidity and its leading role in liquidity risk management processes. Moreover, the paper discloses the conceptual constituents of organizational support for bank liquidity risk management

A process algebra based framework for promise theory

We present a process algebra based approach to formalize the interactions of computing devices such as the representation of policies and the resolution of conflicts. As an example we specify how promises may be used in coming to an agreement regarding a simple though practical transportation problem.Comment: 9 pages, 4 figure

Strategic decision-making processes as a mediator of the effect of board characteristics on company innovation: A study of publicly-listed firms in Greece

Based on the Upper Echelons Theory that suggests the demographic characteristics of executives are linked to organisational processes and outcomes, the paper proposes that strategic decision-making processes mediate the relationship between board members’ demographic characteristics and corporate innovation relating to product, process and organization. Based on questionnaires completed by 101 CEOs of Greek listed firms, the findings confirm that reporting and formalization as decision processes mediate the effect of board characteristics on innovation. Sound financial and formal mechanisms encourage Greek executives to take risks and invest in product or service innovation. Findings show that the executives’ educational level is positively associated with financial reporting and rule formalization activities due to the changes that have been occurred in the Greek education system over recent decades. Functional background is found to influence only financial reporting activities. Finally, the managerial implications of this study are discussed

Financial Dependence, Formal Credit, and Informal Jobs: New Evidence from Brazilian Household Data

This paper examines a much overlooked link between credit markets and formalization: since access to bank credit typically requires compliance with tax and employment legislation, firms are more likely to incur such formalization costs once bank credit is more widely available at lower cost; if so, well-functioning credit markets help foster formal employment at the expense of informal jobs. We gauge the relevance of this credit channel using the Rajan-Zingales measure of financial dependence and a difference-in-differences approach applied to household survey data from Brazil – a large emerging market where substantial changes in banking system depth and formalization ratios have taken place and for which consistent data exists. Our results show that formalization rates increase with financial deepening and the more so in sectors where firms are typically more dependent on external finance. We also decompose shifts in aggregate formalization into those within each firm size category and those associated with changes in firm size, and find that financial deepening significantly explains the former but not so much the latter.credit markets, financial dependence, informality, Brazil