Recently, there has been in various communities and localities in Korea a series of experiments of functioning community/local currencies (CCs/LCs), which are normally used only in a bounded territory like towns or localities, as a kind of complimentary currencies. People believe CCs/LCs enhance residents' purchasing capacity and cause local multiplier effects by encouraging transactions and money flows inside local areas. This study deals with such effects throughout System Dynamics modeling and quantitative simulation, focusing on the case of Poomasi in Gwacheon city. The result implies an introduction of CCs/LCs contributes to an increase of residents' income and local transaction, especially when the running systems of CCs/LCs are based on community spirits and senses.

This paper aims to build a nonlinear dynamic model of economic growth using system dynamics. The model in this study is an application of Goodwin's model in 1990, but the level dimension of the model in 1990 is transformed into a the-rate-of-change dimension in this study. The model is constructed using system dynamics elements: the stock-flow structures, multiple feedback mechanisms, and time delays.
The model successfully implemented the reconstruction of persistent and unpredictable movements of variables on the dimension of the rate of change. This study suggests another perspective regarding the concept of equilibrium besides the traditional point of view that mainly described in the comparative statics. Complex movements of the variables can be generated in a simple deterministic system. Therefore, the stability of a model has to be discussed based on a whole system, which can be evaluated only in the interrelationship of multiple feedback loops with time delays.

The purpose of this research is to investigate the causal loop structure and dynamics of burnout among social workers from the Systems Thinking. For these purposes, the study gave an overview of burnout among social workers according to changes in the surroundings inside as well as outside social welfare organizations and further reviewed the existing studies explaining the factors of burnout among social workers. Further, it analyzed the causal loop structure and the dynamics of burnout among social workers at the organizational level based on the causal map built. Lastly, it drew conclusion with the policy suggestions based on its feedback structure. This study will make a meaningful material to understand the issue of burnout among social workers at the organizational level and provide important implications for social welfare organizations, as the first attempt to explore burnout among social workers from the Systems Thinking.

This study conducts a comparative analysis on cognitive map of residents before and after Fukushima nuclear accident. In doing so, this study explores negative feedback loop among the participation, government image, and demonstration. The result shows that the cognitive map of residents was greatly changed. Especially, the issue regarding conflict has become more diverse and intensive efforts to anti-corruption has been more demanded. With respect to before and after, however, the results of this study show followings. First, sharing of information and participation is the only independent variable. Second, the residents use the possibility of problem solving as a basis for selecting conflict management methods. Third, residents are recognized the open of information and sharing information differently. As a result, this study suggests that the validity and fairness of participation process would be useful conflict management methods.

The purpose of this paper is to find a new generic causal map of substance addiction. In order to achieve the purpose, primarily the existing addiction-related studies, which used System Dynamics methodology, were analyzed. Secondly, to find out the key mechanisms that work in the human brains, studies on substance addiction were reviewed.
As a result of these analyses, the core mechanism of substance addiction was found to be dopamine systems in the brain. Combining this result with the existing systems archetype for addiction, a new generic causal map of substance addiction was suggested. And then, the generic causal map was modified to fit a nicotinist and checked the validity of the modified causal map through simulation.