scholarly journals Transforming a Liability into an Asset: A System Dynamics Model for Free-Ranging Dog Population Management

Systems ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 56
Author(s):  
Urmila Basu Mallick ◽  
Marja H. Bakermans ◽  
Khalid Saeed
Keyword(s):  
System Dynamics ◽  
Social Integration ◽  
Unintended Consequences ◽  
System Dynamics Model ◽  
Dynamics Model ◽  
Innovative Strategies ◽  
Management Context ◽  
Free Ranging ◽  
Social Rewards

Using Indian free-ranging dogs (FRD) as a case study, we propose a novel intervention of social integration alongside previously proposed methods for dealing with FRD populations. Our study subsumes population dynamics, funding avenues, and innovative strategies to maintain FRD welfare and provide societal benefits. We develop a comprehensive system dynamics model, featuring identifiable parameters customizable for any management context and imperative for successfully planning a widescale FRD population intervention. We examine policy resistance and simulate conventional interventions alongside the proposed social integration effort to compare monetary and social rewards, as well as costs and unintended consequences. For challenging socioeconomic ecological contexts, policy resistance is best overcome by shifting priority strategically between social integration and conventional techniques. The results suggest that social integration can financially support a long-term FRD intervention, while transforming a “pest” population into a resource for animal-assisted health interventions, law enforcement, and conservation efforts.

scholarly journals A System Dynamics Model of Online Stores’ Sales: Positive and Negative E-WOM and Promotion Perspective

2019 ◽  
Vol 11 (21) ◽  
pp. 6045 ◽  
Author(s):  
Qiang Yan ◽  
Simin Zhou ◽  
Xiaoyan Zhang ◽  
Ye Li
Keyword(s):  
System Dynamics ◽  
Real Data ◽  
System Dynamics Model ◽  
Dynamics Model ◽  
Sustainable Operations ◽  
Main Research ◽  
Interaction Diagram ◽  
Online Stores ◽  
The Impact

In this paper, we build a causal interaction diagram between the factors that may influence the sales and profits of online stores. An online store’s real operation data were used to help determine the causal relationship between variables. Finally, we proposed a system dynamics model and conducted a simulation of the operation of an online store. In this model, we focused on the impact of promotion and positive/negative electronic word of mouth (e-WOM) on the sales and profits of the online stores. The simulation results showed a similar trend to the real data and the main research finding showed that promotion is not a long-term measure for the sustainable development of online stores. Excessive promotion effort may lead to consumers’ dissatisfaction leading the increase of negative e-WOM. The systematic simulation can help us understand better the long-term effect of promotion and e-WOM on the operation of online stores. Finally, we gave some management suggestions for online stores’ sustainable operations.

scholarly journals Examining budget policies for new and existing facilities: a system dynamics approach

2016 ◽  
Vol 43 (6) ◽  
pp. 511-522 ◽  
Author(s):  
Roozbeh Rashedi ◽  
Tarek Hegazy
Keyword(s):  
System Dynamics ◽  
Life Cycle Cost ◽  
Budget Allocation ◽  
Condition Index ◽  
Dynamics Simulation ◽  
System Dynamics Model ◽  
Dynamics Model ◽  
Policy Makers ◽  
The Impact

Sustaining acceptable service in large facility networks is a complex task, particularly under limited budgets, rapid deterioration, and increasing service demands. Policy-makers are, therefore, challenged to make efficient balance between the construction of new facilities and the renewal of existing ones to suit both the short and the long-term needs. To support policy-makers, this paper proposes an efficient decision support system using the system dynamics simulation technique to analyze the impact of various budget allocation policies and to optimize policy decisions. The proposed system dynamics model was tested using a case study from the Toronto District School Board involving more than 400 schools. It can find the optimum budgeting strategy that minimizes the overall facility condition index and total life cycle cost over a long-term strategic plan. The system dynamics model proved its ability to find a budget allocation policy with much better results than the typical enrolment-based approach.

Long-term perspectives on world metal use—a system-dynamics model

1999 ◽  
Vol 25 (4) ◽  
pp. 239-255 ◽  
Author(s):  
D.P van Vuuren ◽  
B.J Strengers ◽  
H.J.M De Vries
Keyword(s):  
System Dynamics ◽  
System Dynamics Model ◽  
Dynamics Model

Simulation and Prediction of Excellent Students Based on System Dynamics

2015 ◽  
Vol 713-715 ◽  
pp. 1914-1917
Author(s):  
Pei Qin Qi ◽  
Yong Feng Chen
Keyword(s):  
System Dynamics ◽  
Systems Engineering ◽  
System Dynamics Model ◽  
Dynamics Model ◽  
Independent Variables ◽  
Article Analysis ◽  
The Impact

This article analysis the fundamental reasons of the universities recruiting excellent students from the perspective of systems engineering and establish a system dynamics model. Using vensim analysis the impact of recruiting , cultivating excellent students and the loss of them on the total amount of excellent students. While Long-term state of the system is predicted. Through comparing the two programs that the initial cultivation degree and recruiting efficiency are respectively as independent variables and the total amount of excellent students as dependent variable it can provide a reference for the system of university recruiting.

scholarly journals System dynamics model for policy scenarios of organic farming development

Organizacija ◽  
2012 ◽  
Vol 45 (5) ◽  
pp. 212-218 ◽  
Author(s):  
Črtomir Rozman ◽  
Karmen Pažek ◽  
Jernej Prišenk ◽  
Andrej Škraba ◽  
Miroljub Kljajić
Keyword(s):  
System Dynamics ◽  
Organic Farming ◽  
Environmental Parameters ◽  
Organic Production ◽  
System Dynamics Model ◽  
Dynamics Model ◽  
Crop Selection ◽  
Support Decision Making ◽  
Policy Scenarios

This paper presents the system dynamics model of organic farming development in order to support decision making. The model seeks answers to strategic questions related to the level of organically utilized area, levels of production and crop selection in a long-term dynamic context. The model will be used for simulation of different policy scenarios for organic farming and their impact on economic and environmental parameters of organic production at an aggregate level. Using the model, several policy scenarios were performed.

scholarly journals Simulating the Long-Term Impacts of the COVID-19 Pandemic on the Sustainability of the Population-Economy-Environment Nexus

2021 ◽  
Author(s):  
Miguel Poblete-Cazenave
Keyword(s):  
System Dynamics ◽  
The Other ◽  
System Dynamics Model ◽  
Dynamics Model ◽  
World Data ◽  
Consensus Forecasts ◽  
Estimated Parameters ◽  
Economic Recessions ◽  
The World

AbstractThe COVID19 pandemic has created a massive shock, unexpectedly increasing mortality levels and generating economic recessions all around the world. In recent years, several efforts have been made to develop models that link the environment, population and the economy which may be used to estimate potential longer term effects of the pandemic. Unfortunately, many of the parameters used in these models lack appropriate empirical identification. In this study, first I estimate the parameters of “Wonderland”, a system dynamics model of the population-economy-environment nexus, and posteriorly, add external GDP and mortality shocks to the model. The estimated parameters are able to closely match world data, while future simulations point, on average and regardless of the COVID19 pandemic, to a world reaching dangerous environmental levels in the following decades, in line with consensus forecasts. On the other hand, the effects of the pandemic on the economy are highly uncertain and may last for several decades.

Sign in / Sign up

Export Citation Format

Share Document