Decision support system for production control: Multiple criteria decision making in practice

This paper presents a development of decision support systems for solving scheduling problems. It consists of two parts — the first describing the production processes which can be handled by the system and the second describing how the system works.

A környezeti hasznok rendszere (System of the environmental benefits)

A tanulmány a vállalati működés során megjelenő környezetvédelmi intézkedések vállalaton belüli hasznainak rendszerezésével foglalkozik. A hagyományos vállalati számviteli rendszerben a környezetvédelem alapvetően a költségoldalon jelenik meg. Azonban a környezetvédelmi tevékenység vállalaton belül megjelenő hasznainak is fontos szerepe van környezetvédelmi intézkedésekkel, beruházásokkal kapcsolatos döntések meghozatalában. Ennek ellenére a környezeti hasznok a szakirodalomban elnagyoltan, valamint nem a teljes vállalatra vonatkozóan jelennek meg. Ezért a tanulmány célja, hogy a környezeti hasznok számviteli rendszerben való kimutatására egyfajta megoldást keressen. Az elemzés eredménye egy olyan új modell felállítása, amely képes a tulajdonosi érték koncepciójához szorosan kapcsolódva a vállalaton belüli környezeti hasznokat átfogóan kimutatni. Az újonnan felállított modell a hazai és a nemzetközi gyakorlatban is újdonságértékkel bír, és nagy előnye a vállalati gyakorlatban való alkalmazhatóság. --------- The main focus of this paper is the systematization of the environmental benefits within the company. The environmental benefits related to the company’s environmental action. Environmental protection appears in the accounting system mostly on the cost side. However, environmental benefits incurring within the company play an important role in the company’s environmental decision making processes. Despite these facts, environmental benefits are not analyzed in detail by the accounting literature and do not cover the whole activity of the company. Consequently, these paper aims to gain a possible demonstration of environmental benefits in the accounting system. The main outcome of this paper is a new model, able to comprehensively present the environmental benefits of the whole company. The theory on which the model is based is the shareholders’ value concept. The model has significant novelty both in the Hungarian and international practice. Another advantage of the model is that it can be integrated into the company’s accounting system.

An inconsistency control system based on incomplete pairwise comparison matrices

Incomplete pairwise comparison matrix was introduced by Harker in 1987 for the case in which the decision maker does not fill in the whole matrix completely due to, e.g., time limitations. However, incomplete matrices occur in a natural way even if the decision maker provides a completely filled in matrix in the end. In each step of the total n(n–1)/2, an incomplete pairwise comparison is given, except for the last one where the matrix turns into complete. Recent results on incomplete matrices make it possible to estimate inconsistency indices CR and CM by the computation of tight lower bounds in each step of the filling in process. Additional information on ordinal inconsistency is also provided. Results can be applied in any decision support system based on pairwise comparison matrices. The decision maker gets an immediate feedback in case of mistypes, possibly causing a high level of inconsistency.

Consistency of the decision-maker in pair-wise comparisons

Most authors assume that the natural behaviour of the decision-maker is being inconsistent. This paper investigates the main sources of inconsistency and analyses methods for reducing or eliminating inconsistency. Decision support systems can contain interactive modules for that purpose. In a system with consistency control, there are three stages. First, consistency should be checked: a consistency measure is needed. Secondly, approval or rejection has to be decided: a threshold value of inconsistency measure is needed. Finally, if inconsistency is ‘high’, corrections have to be made: an inconsistency reducing method is needed. This paper reviews the difficulties in all stages. An entirely different approach is to elaborate a decision support system in order to force the decision-maker to give consistent values in each step of answering pair-wise comparison questions. An interactive questioning procedure resulting in consistent (sub) matrices has been demonstrated.

Managing crisis

The traditional approach to crisis management suggest autocratic leadership, that has risks anyway (leader is the bottle-neck of problem solving, single-loop learning, crisis management is a matter of efficiency). However, managing nowadays crisis is rather effectiveness issue, and requires double-loop learning (second-order change) and leadership role in the sense of Kotter’s theory. Paper discusses the top-management’s leadership responsibilities, and their special tasks in the problem solving process of change. Inappropriate perception of leadership responsibilities and insisting upon first-order change strategy results in becoming part of the problem, rather that part of the solution of the problem.

The impact of perceived corporate environmental performance on the behavior of capital market decision makers : analysis of food industry companies

Environmental protectionism and sustainable development has been gaining increased attention among governments, investors and consumers alike. As a result, firms are facing growing pressure from the various stakeholders to improve their environmental performance. This study is focusing on the food industry, which in recent years has been a subject of increased scrutiny due to their role in resource consumption, waste generation and unsustainable production practices. Our research is aiming to examine how the financial community evaluates the environmental stewardship of food industry companies as proxied by market reactions in response to environmental news. Are all company related environmental news items evaluated equally, and which financial and non-financial firm-specific attributes can influence market responses? Have there been changes in reactions on the stock exchange in the past two decades?