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- Type:
- Document
- Date Created:
- 1989
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 229aea09844305a482784be9fca550ff, 23d738ba88f8333bc39725f9cb5bd0b8, and a656a490ae4bb95659d385b98804153f
- Description:
- System Dynamics modeling has been applied to regional, urban, and community problem solving where critical policies are concerned with land-use controls. Representation of change in the spatial distribution and physical appearances of various activities have traditionally been achieved by modeling these as transfers between relatively homogeneous sub-area sectors. Due to lack of capabilities for direct representation of System Dynamics modeling has received little attention in environmental and city planning practice. In this paper, we describe the main components of a methodology to make System Dynamics modeling more integral in planning and design for community development, also including spatial representation.
-
- Type:
- Document
- Date Created:
- 1989
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 229aea09844305a482784be9fca550ff, 23d738ba88f8333bc39725f9cb5bd0b8, and a656a490ae4bb95659d385b98804153f
- Description:
- This paper reports findings of experiments with a system dynamics model of resource allocation in the political system of a developing country. Political patterns resulting from various assumptions about government attitudes are examined with respect to empirical evidence about these. The analysis helps to understand circular cause and effect relationships that shape internal trends affecting the government's commitment to economic development agenda and its ability to resolve political conflict generated over the course of implementation of this agenda.
-
- Type:
- Document
- Date Created:
- 1989
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 229aea09844305a482784be9fca550ff, 23d738ba88f8333bc39725f9cb5bd0b8, and a656a490ae4bb95659d385b98804153f
- Description:
- This paper describes a user-friendly learning medium that revisits the problem of economic development with a behavioral perspective. Formal modelling and computer simulation create a laboratory which makes it possible to experiment with ideas without incurring the costs and risks of action research. Besides sharing the insights gained by the author in his experiments, the package also invites further experimentation by the readers through use of the accompanying software.
-
- Type:
- Document
- Date Created:
- 1989
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 229aea09844305a482784be9fca550ff, 23d738ba88f8333bc39725f9cb5bd0b8, and a656a490ae4bb95659d385b98804153f
- Description:
- The paper deals with Roemer's claims that the Marxian theory of surplus value is logically faulty and should be considered the special case of his own “general theory of exploitation” (the “GTE”). It is shown that Roemer's models and theorems implicitly confirms the main point of “Das Kapital”: profit does be the the converted form of surplus value produced by working class under capitalism.
-
- Type:
- Document
- Date Created:
- 1989
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 229aea09844305a482784be9fca550ff, 23d738ba88f8333bc39725f9cb5bd0b8, and a656a490ae4bb95659d385b98804153f
- Description:
- As for as we know there are relatively few examples of application of System Dynamics in the electric power Industry. Some of them are nonetheless of high interest. We can mention the program of the Bonneville Power Administration that had been presented in a previous Conference of the System Dynamics Society. Our purpose at Electricité de France was to scan the areas in which System Dynamics could be helpfull to our company.
-
- Type:
- Document
- Date Created:
- 1989
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 229aea09844305a482784be9fca550ff, 23d738ba88f8333bc39725f9cb5bd0b8, and a656a490ae4bb95659d385b98804153f
- Description:
- System dynamics models are typically created using multiple streams of information including quantitative data, written records, and information contained in mental models of both individuals and groups. While qualitative sources of information are widely recognized as important in all stages of the model building process, little systematic research has been completed how best to elicit and map this knowledge. In this paper, we survey the existing literature on mapping and eliciting knowledge for system dynamics modeling and also explore this literature in the broader fields of cognitive psychology and small group processes. Special attention is paid to new software advances to support these processes.
-
- Type:
- Document
- Date Created:
- 1989
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 229aea09844305a482784be9fca550ff, 23d738ba88f8333bc39725f9cb5bd0b8, and a656a490ae4bb95659d385b98804153f
- Description:
- The costs associated with liability in the United States are rising dramatically and persistently. Escalating medical malpractice premiums threaten the scope and availability of health care in many states. Increasing costs for automobile insurance have led to public referenda to cap premiums, in turn driving insurers out of practice in some states. Runaway litigation costs prompting calls for major revisions in liability stautes and the whole tort liability system.Over the past two years, two independent system dynamics studies of the rising costs of liability insurance have been conducted. One study focused on forces driving rising settlement costs within a leading property and liability insurance provider. That study has resulted in a learning laboratory to help managers throughout the firm form a more systemic perspective on how established policies and practices within the firm might contribute to rising costs. The other study, done for the New York State Insurance Department looked at the problem of medical malpractice from a statewide regulatory perspective. It was designed to provide help to the state legislature in setting the state's policy on rates over the next three years.This paper assembles some of the work done in these two independent studies, reports on their findings, and discusses their policy implications. Of particular interest are implications of the internal and external system dynamics perspectives on the problem- where they agree, where they disagree and where they help illuminate each other.
-
- Type:
- Document
- Date Created:
- 1989
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 229aea09844305a482784be9fca550ff, 23d738ba88f8333bc39725f9cb5bd0b8, and a656a490ae4bb95659d385b98804153f
- Description:
- People of different nations often meet with the intent of destroying each other with the technology and techniques of modern warfare. This has come to be the reality of modern politics. Yet mass warfare has not been a permanent fixture throughout the history of mankind. In this paper, an attempt is made to gain a better understanding of what caused the transition from localized tribal feuding.
-
- Type:
- Document
- Date Created:
- 1989
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 229aea09844305a482784be9fca550ff, 23d738ba88f8333bc39725f9cb5bd0b8, and a656a490ae4bb95659d385b98804153f
- Description:
- Apparently the electricity sector of Argentina has suffered in the past from excessive capacity planning, owing to overoptimistic forecasts of demand growth rate. But because of the long delays involved and lack of financial backing this advantage has been progressively lost. The present official planning only provides for renovation and demographic growth, not allowing for economic growth. Therefore, the actual supply-demand balance of electricity can easily be worn away by technical obsolescence and aging process of the actual installed capacity of electricity production.The problem behaviour arises when the timing of new capacity investment is delayed, falling behind the programmed schedule of new plants, without being able to meet the electricity demand. This could happen mainly due to political prices well below costs because of the inflation and or social subsidization, which leads, in turn, to the discapitalization of the sector, that still remains nationalized. A system dynamics model is used to explore the trade-off between construction delays (which entails costs of unsatisfied demand) and construction speed up (which entails financial costs).
-
- Type:
- Document
- Date Created:
- 1989
- Collection:
- System Dynamic Society Records
- Collecting Area:
- University Archives
- Collection ID:
- ua435
- Parent Record(s):
- 229aea09844305a482784be9fca550ff, 23d738ba88f8333bc39725f9cb5bd0b8, and a656a490ae4bb95659d385b98804153f
- Description:
- The theoretical results are mixed at best. Linear systems do not show novel behavior. Some non-linear models may show new growth modes as revealed by formulas for the eigenvalues of the linearized versions of such models. The new growth modes shown by a reduced-order version of the Commodity Cycle model (Meadows, 1970) suggest that this non-linear model may support novel behavior in some regimes of operation. This paper partially lays to rest that expectation.