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- Type:
- Document
- Date Created:
- 2010 July 25-2010 July 29
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 516b485dacfb3c26da448243f0948912, 23d738ba88f8333bc39725f9cb5bd0b8, and 17bfad39e1d09bfe17f82d7ae001449f
- Description:
- Efforts to increase forest cover in the developing world will only succeed if the root causes of deforestation are addressed. Researchers designing reforestation initiatives tend to emphasize macro-level drivers of deforestation, such as population growth and federal policy. On the other hand, local people have knowledge of social and cultural dynamics that may be critical in the successful implementation of reforestation efforts. The perception gap between researchers and community members has led to many failed or insufficiently implemented projects. An emerging toolgroup model building with system dynamicsshows promise in its ability to integrate different perspectives on a complex problem such as forest cover loss. In this study, I use system dynamics modeling methodology to compare causal loop diagrams of forest cover dynamics on Negros Island, Philippines generated by researchers working for the World Wildlife Fund with causal loop diagrams generated by community members in upland Negros. The diagrams were significantly different, with very few variables in common, but both illuminate critical aspects of the deforestation problem on the island. I conclude that reforestation initiatives in the Philippines would benefit from incorporating all relevant information into a single, coherent model.
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- Type:
- Document
- Date Created:
- 2010 July 25-2010 July 29
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 516b485dacfb3c26da448243f0948912, 23d738ba88f8333bc39725f9cb5bd0b8, and 17bfad39e1d09bfe17f82d7ae001449f
- Description:
- The comparison of mental models of dynamical systems can help understanding they way individuals understand dynamic situations and how their understanding changes. Current approaches like the Distance Ratio and the Closeness Ratio have been criticized for not taking into account feedback loops and delays; an improved comparison method has been proposed, specifying an Element Distance Ratio, Loop Distance Ratios and a Model Distance Ratio. We are advancing in the automation of the computations in order to take this burden away from analysts. This paper describes the essential computations. It briefly presents the comparison method for the different ratios. Then it introduces the conceptual architecture of the software tool, its main data structures and algorithms. The tool shall be put to use in mental model research.
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- Type:
- Document
- Date Created:
- 2010 July 25-2010 July 29
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 516b485dacfb3c26da448243f0948912, 23d738ba88f8333bc39725f9cb5bd0b8, and 17bfad39e1d09bfe17f82d7ae001449f
- Description:
- System dynamics is progressively taught in different levels of education systems. There are challenges as for integrating it into the curricula of different professions and at the same time striving to grow it into a profession on its own. This paper starts recognizing that no representation of what is learned in system dynamics has been published in a way compatible with mainstream curricular tools. Specifically the need to integrate system dynamics into a competency-based curriculum has lead to a search in the field. We have opted for Blooms taxonomy as a widely shared reference frame and thus have expressed cognitive resources and development indicators in Blooms terms. The result is now a valuable resource for incorporating elements of system dynamics across different courses of undergraduate programmes in our university. Even so, the result has to be critically revised, for there are several open questions concerning the development stages of the learning process and the best form of representing them in order to facilitate the design and development of learning and assessment activities.
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- Type:
- Document
- Date Created:
- 2010 July 25-2010 July 29
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 516b485dacfb3c26da448243f0948912, 23d738ba88f8333bc39725f9cb5bd0b8, and 17bfad39e1d09bfe17f82d7ae001449f
- Description:
- EP industry is expected to play a central role in climate change mitigation in many countries. With its rich clean energy potential, Turkey is a particular example. Being a developing economy, Turkey contributes to about one percent of global GHG emissions, and its per capita emissions are equal to and now exceeding the world average. The EP industry in Turkey is responsible for 28 percent of the national CO2 emissions. If a viable and sustainable global climate treaty develops in the near future, as a party to the UNFCCC, Turkey will have to assume national abatement targets and face the challenge of shifting its heavily fossil fuel based EP production towards renewable energy sources (RES), decentralized generation (DG) and increasing efficiency gains. In this paper, we create a dynamic simulation model of EP industry in Turkey so as to analyze the options for CO2 mitigation through replacements with cleaner energy resources. The model focuses on the supply side of EP sector and represents the investment, production, pricing and financing structures of coal, gas, hydro, wind and solar power plants as well as the existing natural potential for the renewable resources.
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- Type:
- Document
- Date Created:
- 2010 July 25-2010 July 29
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 516b485dacfb3c26da448243f0948912, 23d738ba88f8333bc39725f9cb5bd0b8, and 17bfad39e1d09bfe17f82d7ae001449f
- Description:
- Outlined is the systems based process used to investigate delayed discharging, which combines parts of the Soft Systems Methodology (SSM) with Systems Dynamics (SD).At the early stages use of hard system approaches were inappropriate to investigate this type of complex problem. SSM was used to consider the soft problems present, expressing the problem situation as a rich picture. This informed construction of a SD model to investigate policy interventions for reducing delayed discharges. This process had practical implications for structuring qualitative data to inform the SD methodology.
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- Type:
- Document
- Date Created:
- 2010 July 25-2010 July 29
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 516b485dacfb3c26da448243f0948912, 23d738ba88f8333bc39725f9cb5bd0b8, and 17bfad39e1d09bfe17f82d7ae001449f
- Description:
- Delayed discharges have become a common problem within hospital, predominately within elderly care. Patients become blocked unnecessarily along the patient pathway. Historically allocation system policies were needed acting as coping mechanisms when there was a lack of social workers to carry out patient assessments and set up services. These allocation policies helped to reduce delayed discharging of elderly patients when resources were scarce.
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- Type:
- Document
- Date Created:
- 2010 July 25-2010 July 29
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 516b485dacfb3c26da448243f0948912, 23d738ba88f8333bc39725f9cb5bd0b8, and 17bfad39e1d09bfe17f82d7ae001449f
- Description:
- For many decades, Korean shipbuilders have been the leader of the global market. They offer cost effective and high quality vessels based on their advanced production technologies, good management and process control which helps them utilize their economies of scale and learning effect. Korean shipbuilders top the industry with highest market share.
-
- Type:
- Document
- Date Created:
- 2010 July 25-2010 July 29
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 516b485dacfb3c26da448243f0948912, 23d738ba88f8333bc39725f9cb5bd0b8, and 17bfad39e1d09bfe17f82d7ae001449f
- Description:
- This paper revisits the problem of economic development questioning the implicit premise that
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Ryzhenkov, Alexander, "The Structural Crisis of Capital Accumulation in the USA and Its Causa Prima"
- Type:
- Document
- Date Created:
- 2010 July 25-2010 July 29
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 516b485dacfb3c26da448243f0948912, 23d738ba88f8333bc39725f9cb5bd0b8, and 17bfad39e1d09bfe17f82d7ae001449f
- Description:
- This paper re-defines three hypothetical laws of capital accumulation including endogenous rate of accumulation and capital-output ratio as state variables. An original non-linear relationship relates their growth rates. Other state variables are output per worker, employment ratio and relative labour compensation. A comprehensive Phillips equation, governing real labour compensation, is an element of the initial law (HL-1). HL-2 substitutes the former equation by a new one that reflects a long-term tendency of relative labour compensation to fall.
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- Type:
- Document
- Date Created:
- 2010 July 25-2010 July 29
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 516b485dacfb3c26da448243f0948912, 23d738ba88f8333bc39725f9cb5bd0b8, and 17bfad39e1d09bfe17f82d7ae001449f
- Description:
- With the advent of Enterprise Resource Planning (ERP) systems, availability of data is no longer the bottleneck to decision making in many organizations. Instead the reverse seems to apply more frequently. Integrated organization-wide computer systems overwhelm managers with data to such an extent that it becomes difficult to assess relevance for managing operations. A number of methodologies attempt to help management to distill meaning from large amounts of data. These methodologies enable managers to identify multiple performance indicators and determine tradeoffs between effects of proposed improvements. Implementation of improvements however entails organizational change. Methodologies are commonly used in an expert mode, which makes them prone to many of the potential traps of change management, such as lack of commitment due to the not invented here syndrome. Alternative methodologies such as group model building enable problem owners to identify problems and combine knowledge and system data in solving these are available. In this paper we explore three group model building projects in an ERP context. We address the context in which the projects were carried out and the process of client participation and model construction. We describe effects in terms of end products, quality of solutions and outcomes of system changes.