جستجوی مقالات مرتبط با کلیدواژه « دینامیک سیستم » در نشریات گروه « مدیریت »

This paper aims to explore effect of supply chain members’ costs change on participants of the network.On one perspective, it explores when there is a cost change to a firm, how other firms are affectedand who bear(s) the most effect. On the other perspective, it investigates how an individual firm’sperformance is affected by the other members in its network and whose cost change would impose amost significant effect on its profitThis paper aims to explore effect of supply chain members’ costs change on participants of the network.On one perspective, it explores when there is a cost change to a firm, how other firms are affectedand who bear(s) the most effect. On the other perspective, it investigates how an individual firm’sperformance is affected by the other members in its network and whose cost change would impose amost significant effect on its profit

In City Logistics (CL) contexts, public stakeholders’ goal is often to implement policies aimed at reducing the negative externalities generated by freight transportation activities, while at the same time maintain and foster the efficiency of the CL system without hindering the profitability of private operators. This task can become quite arduous because of the complexity of CL systems, which are composed by multiple actors with different objectives and driving factors. In this context, we argue that existing literature should explore more deeply the effects of public policies on operation and economic variables that shape the CL context. To this end, we propose a System Dynamics (SD) model that identifies the interconnections between those variables and helps assess the effects of public policies on the system.

Strategic planning models emphasizes on two major approaches: first, mathematical models and multi criteria decision making are used for organizational strategy selection and second, geometrical analysis are used for strategy selection. But these approaches are usually suffering from the four major drawbacks:1) The effect of time, as a basic variable, is not considered in strategic planning process;
2) In classic mathematical models that are currently used in strategy selection process, it is not possible to consider all of the effective parameters simultaneously;
3) Mutual effects of components and subsystems are disregarded;
4) The ignorance of lag effects between elements and relations.
In this paper a dynamic system approach is used for modeling the planning process to overcome these weaknesses. In this model, organizational planning has been done based on recognition of internal and external components and mutual effects to overcome the organizational problems. Dynamic planning model consider an integrated whole system is designed containing different subsystems. This model is used to select the best strategy between different possible solutions.