My publications on loop dominance, the Newtonian Interpretive Framework and soft variables.
Journal Papers
Hayward J, Boswell GP. 2014. Model Behaviour and the Concept of Loop Impact: A Practical Method. System Dynamics Review, 30(1), 29-57. DOI: 10.1002/sdr.1511
Hayward J, Roach PA. 2017. Newton’s Laws as an Interpretive Framework in System Dynamics. System Dynamics Review, 33(3-4), 183-218. DOI: 10.1002/sdr.1586.
Hayward J, Roach PA. 2019. The Concept of Force in Population Dynamics, Physica A: Statistical Mechanics and its Applications, 531, 121736, DOI: 10.1016/j.physa.2019.121736.
Hayward J, Roach PA. 2022. The Concept of Energy in the Analysis of System Dynamics Models, System Dynamics Review, 38(1), 5-40. DOI: 10.1002/sdr.1700
Schoenberg W, Hayward J, Eberlein R. 2023. Improving Loops That Matter, System Dynamics Review, 39(2), https://doi.org/10.1002/sdr.1728.
Hayward J, Roach PA. 2024. A Comparison of Loop Dominance Methods: Measures and Meaning. Journal version. System Dynamics Review, 40(2), e1757. https://doi.org/10.1002/sdr.1757 Open Access.
Conference Papers
Hayward J. 2012. Model Behavior and the Strengths of Causal Loops: Mathematical Insights and a Practical Method. Presented at the 30th International Conference of the System Dynamics Society, St. Gallen, Switzerland, July 2012.
Hayward J, Jeffs RA, Howells L, Evans KS. 2014. Model Building with Soft Variables: A Case Study on Riots. Presented at the 32nd International Conference of the System Dynamics Society, Delft, Netherlands, July 2014.
Hayward J. 2015. Newton’s Laws of System Dynamics. Presented at the 33rd International Conference of the System Dynamics Society, Cambridge, MA, July 2015.
Hayward J, Jeffs RA, Roach PA. 2020. A Supply and Demand Model of Political Party Growth. Presented at the 38th International Conference of the System Dynamics Society, Virtual Bergen, July 2020. An application of soft variables.
Hayward J, Roach PA. 2023. A Comparison of Loop Dominance Methods: Measures and Meaning. Conference version. Presented at the 41st International Conference of the System Dynamics Society, Chicago, July 2023.
Technical Reports
Hayward J. 2020. The Concept of Average Loop Impact as a System-Wide Measure of Feedback Dominance Analysis. DOI:10.13140/RG.2.2.14721.28001. arXiv:2011.04103
Hayward J. 2021. Loop Impact on Flows. DOI:10.13140/RG.2.2.17652.07044