This follow-up paper presents seven actual cases for testing and teaching System Dynamics developed and used between January 2010 and January 2011 for the Introductory System Dynamics courses at Delft University of Technology (250+ students per year). The cases presented in this paper range from short to long and can be used for teaching and testing introductory/intermediate System Dynamics courses at university level as well as for self study. Additionally, the use of traditional and new Multiple Choice questions for testing System Dynamics is presented and discussed.
Enormous future investments are needed to replace and expand energy systems, and prepare them for future needs. Moreover, smarter technologies/systems are needed. And in this ever more complex, interconnected, and uncertain world, smarter policymaking in the energy field is certainly needed too. After all, current energy policymaking still mainly ignores (dynamic) complexity and (deep) uncertainty.
Plausible dynamics of a major demographic shift --(societal) ageing-- is studied in this paper, both from a global perspective and from a national perspective.
This paper illustrates the use of Exploratory System Dynamics Modeling and Analysis -- a multi-method combining System Dynamics and Exploratory Modeling and Analysis to explore and analyze uncertain dynamic issues and test deep policy robustness, i.e. policy effectiveness over thousands of plausible futures.
Radicalization and deradicalization are deeply uncertain dynamic processes. Exploring and analyzing many plausible futures and assessing the robustness of policies to reinforce desirable evolutions seem more useful for such processes than trying to predict their precise development over time and optimize the associated policy response. This paper illustrates how the combination of System Dynamics Modeling and Exploratory Modeling and Analysis could be helpful in that respect for deeply uncertain dynamic issues as de/radicalization processes. The generic SD model about radical and non-radical activism used first is methodologically relevant because it generates clear bifurcations. This generic model could be seen as a plausible dynamic theory about how activism may become more/less radical. Specific instances of this generic model are subsequently used to shed light on particular de/radicalization processes - such as animal rights activism - and successful actions to fight radicalization. Finally, SD teaching and testing cases based on these models are provided in the appendix.
The objective of this research is to identify the key factors that impact the system of product commercialization in the Bogota´s market to allow a better comprehension of the growth behavior of the convenience stores in this city.
The use of DDT for Indoor Residual Spraying (IRS) in recent years has proven to be a cost effective way of combating malaria in sub Saharan Africa. A variety of alternatives to DDT for IRS exist. However, their costs and benefits are insufficiently understood. This is particularly true when it comes to evaluating vector control strategies in an integrated way, i.e., also in terms of their broader socio-economic development impacts. The Malaria Management Model project estimated the costs associated with the eradication of malaria for different combinations of vector control interventions and for different time horizons. For this purpose it developed a computer based simulation model that is based on an extensive database and calibrated for the aggregated sub Saharan African region. It studies long-term (1970-2050) trends of malaria diffusion and the implications for socio-economic development. Model simulations showed that for all policy-scenario combinations, the average yearly expenditures for malaria prevention were much lower than the possible average yearly gain in GDP from eradicating malaria. Model simulations also revealed that the additional costs of substituting DDT for IRS create a series of benefits as well as avoided risks that overall more than offset the costs.