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- Type:
- Document
- Date Created:
- 2009 July 26-2009 July 30
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 23d738ba88f8333bc39725f9cb5bd0b8, b3584c6b53c3f58e0202549d7d851f84, and 4818cb531cdd68d6ec6af3f291216fc7
- Description:
- The operation of hospitals in a low-risk state has become more a more challenging goal to meet
-
- Type:
- Document
- Date Created:
- 2009 July 26-2009 July 30
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 23d738ba88f8333bc39725f9cb5bd0b8, b3584c6b53c3f58e0202549d7d851f84, and 4818cb531cdd68d6ec6af3f291216fc7
- Description:
- Understanding how interactions between apparently race-neutral institutions and policies can produce racial disparities is essential to a Civil Rights Movement in the United States in the 21st Century. Moving from a discourse that focuses on intent as the determining factor in whether racism exists to a discourse that focuses on the existence of racial disparities and the structures that reproduce them requires a new language and vocabulary. Conceptualizing and operationalizing effective interventions that will reduce these disparities requires a new methodology. System dynamics can play a key role in providing both a language and a methodology to better understand the continuing presence of racial disparities across nearly every indicator of wellbeing. Most attempts to reduce racial disparities have met with considerable policy resistance, and modeling work must focus on identifying key leverage points. In this mostly qualitative work, causal-loop diagrams are pulled from relevant research and key reference modes are examined for insights into the structures perpetuating racial hierarchy. A dynamic hypothesis is proposed that the stock of African-Americans living in areas of concentrated poverty is one of the key drivers of racial disparities. Suggestions and opportunities for further modeling and next steps are also outlined.
-
- Type:
- Document
- Date Created:
- 2009 July 26-2009 July 30
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 23d738ba88f8333bc39725f9cb5bd0b8, b3584c6b53c3f58e0202549d7d851f84, and 4818cb531cdd68d6ec6af3f291216fc7
- Description:
- Prior work shows widespread misunderstanding of the principles of accumulation (stocks and flows),
-
- Type:
- Document
- Date Created:
- 2009 July 26-2009 July 30
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 23d738ba88f8333bc39725f9cb5bd0b8, b3584c6b53c3f58e0202549d7d851f84, and 4818cb531cdd68d6ec6af3f291216fc7
- Description:
- This paper reports on an experiment comparing the relative effectiveness of standard group facilitation techniques with system dynamics facilitation techniques in a real world stakeholder participation process. The experiment tested the hypothesis that the system dynamics approach would lead to: (1) better decisions; (2) greater participant focus on relevant materials; and (3) higher procedural satisfaction. The system dynamics approach yielded better decisions but lower procedural satisfaction among participants.
-
- Type:
- Document
- Date Created:
- 2009 July 26-2009 July 30
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 23d738ba88f8333bc39725f9cb5bd0b8, b3584c6b53c3f58e0202549d7d851f84, and 4818cb531cdd68d6ec6af3f291216fc7
- Description:
- The number of incidents provoked by a domestic terrorist organization shows an oscillatory though irregular behaviour over time. There are periods of time where the organization carries out many incidents whereas during other periods, the activity diminishes or even is null. This paper attempts to explain the reasons of that behaviour considering a causal structure that picks up the interrelations between the actions of the organization and the government of the country where the organization focus mainly its activities. While the terrorist organization controls positive feedback loops, the governmental policies implemented to fight against it are led by negative feedback loops fraught with uncertainty. The dynamic emerging from the interrelations between the positive and the negative feedback loops would explain the evolution of the number of attacks carried by the organization. In order to check the strength of the causal structure a simulation exercise is proposed to characterize the number of incidents of a specific organization during a concrete temporal horizon. The aim is to check the degree of fit between the real data and those obtained by simulation, which includes specific features of the organization to study.
-
- Type:
- Document
- Date Created:
- 2009 July 26-2009 July 30
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 23d738ba88f8333bc39725f9cb5bd0b8, b3584c6b53c3f58e0202549d7d851f84, and 4818cb531cdd68d6ec6af3f291216fc7
- Description:
- Much attention is focused on the rational-style development and application of System Dynamics models. Even group model building focuses primarily on the formulation and understanding of the model by the group members themselves. There is a dearth of attention for communication of the insights derived during the model building process to those peripherally or (un)involved in this process. In this study, the multi-actor context of model implementation is addressed explicitly. The feedback loop connecting model-derived insights and results back to the problem owners, the client and stake-holders, is explored. A number of principles for use in the communication of models are derived and the rôle of interactive learning environments as a tool in communicating model results and insights in such a multi-actor context is discussed.
-
- Type:
- Document
- Date Created:
- 2009 July 26-2009 July 30
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 23d738ba88f8333bc39725f9cb5bd0b8, b3584c6b53c3f58e0202549d7d851f84, and 4818cb531cdd68d6ec6af3f291216fc7
- Description:
- This paper shows system dynamic model of labor market and labor migration in Latvia. The hypothesis of the research is that: labor migration is determined primarily by the payment level in the countries under consideration and indicator derived from it â payment difference in compared countries; also employment level, unemployment level, number of work places (market capacity) and number of vacant work places. Secondary factors influencing migration may be costs connected with labor migration, formal legal barriers of migration and personal propensity to migrate. Statistics on the Latviaâs labor market are not complete; there is also no common view of experts about determinant processes. In such circumstances forecasting of market with quantitative methods is problematic. One approach is to simulate indicators and to estimate their influence on national economy. The model has three parts: labor force expansion, allocation and migration sub models. Labor force expansion sub model is based on allocation of population in various categories during transition to a working age population. Allocation by level of educational is further used in labor markets analysis, where, according to the education level, worker groups are formed. Mutual interaction of groups of workers together with labor migration is represented in paper. In results is shown model factors sensitivity from personal propensity to labor migration.
-
- Type:
- Document
- Date Created:
- 2009 July 26-2009 July 30
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 23d738ba88f8333bc39725f9cb5bd0b8, b3584c6b53c3f58e0202549d7d851f84, and 4818cb531cdd68d6ec6af3f291216fc7
- Description:
- This paper reports on an experimental study testing the relative effect of using simulation models on systems thinking in a college-level Introduction to Environmental Science class. The preliminary findings show mixed results. It is unclear whether this is a result on the systems simulations used in the interventions or the assessment techniques employed to study their effectiveness.
-
- Type:
- Document
- Date Created:
- 2009 July 26-2009 July 30
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 23d738ba88f8333bc39725f9cb5bd0b8, b3584c6b53c3f58e0202549d7d851f84, and 4818cb531cdd68d6ec6af3f291216fc7
- Description:
- In a study done by Saeed and Pavlov a generic microstructure of resource competition was developed and stylized using the dynastic cycles that occurred throughout Chinese history. The result was a model that demonstrated how economic drivers contribute to the cycles observed in the rise and fall of dynasties and lawlessness. Using their structure, with only a few substitutions of names, the same model suitably describes numerous systems where similar cycles in resource levels can be observed. Yet, in some systems, such as gangs, the economic motivations alone do not adequately describe the social factors clearly evident in rise and fall of criminal behavior attributed to gangs. This paper explores the social influence gaps in the purely economic model, identifies a social structure that can be used instead of the economic mechanisms, and then examines implications of a model that combines both aspects of the system. The result of this research indicates that both economic and social influences are capable of producing cycles and when combined, only further exacerbate the problem. These findings have import implications on policy design, suggesting that solutions will need to simultaneously consider both aspects.
-
- Type:
- Document
- Date Created:
- 2009 July 26-2009 July 30
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 23d738ba88f8333bc39725f9cb5bd0b8, b3584c6b53c3f58e0202549d7d851f84, and 4818cb531cdd68d6ec6af3f291216fc7
- Description:
- Sastry's (1997) simulation model of Tushman and Romanelli's (1985) classic theory of punctuated organizational change supported the underlying causal theory and yielded several important insights regarding executive management's role in monitoring the strategic fit with the environment and allowing for a trial period directly after reorientation. However, Sastry's model focuses exclusively on reactive strategic reorientations triggered by sustained poor performance due to organization-environment misalignment, leaving no room for proactive strategic shifts in response to anticipated events. The extremely common process of strategic planning is geared toward just this type of change; routine planning attempts to manage uncertainty, anticipate future demands, and make targeted strategic changes before performance deficits make radical reorientation necessary. This paper explores the impact of adding a strategic planning routine to Sastry's model on organizational performance and change.