What does this mean? (Dynamic forces in modelling)

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SUMMARY

The discussion centers on the concept of "dynamic forces" in mathematical modeling, specifically in the context of a study on crime influenced by economic deprivation. Participants clarify that dynamic forces refer to external factors affecting the dependent variable, which are not included in the model. An example provided highlights "neighborhood effects" as a significant dynamic force that was overlooked in the analysis, leading to potential inaccuracies in the model's predictions. The consensus is that ignoring such influential factors can undermine the validity of the model.

PREREQUISITES
  • Understanding of mathematical modeling principles
  • Familiarity with quasi-static approximations in modeling
  • Knowledge of external factors influencing dependent variables
  • Insight into socio-economic factors affecting crime rates
NEXT STEPS
  • Research "dynamic forces in mathematical modeling" for deeper insights
  • Explore "quasi-static approximations" and their implications in modeling
  • Investigate the impact of "neighborhood effects" on crime analysis
  • Study methods for incorporating external factors into predictive models
USEFUL FOR

Researchers, data analysts, and social scientists interested in improving the accuracy of mathematical models, particularly in fields such as criminology and socio-economic studies.

davemk
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Hi, hopefully this is a simple question and easily answered.

I've been doing some reading on the subject of mathematical modelling and examples of modelling reports. In one report, the failings of the model are put down to "dynamic forces". I've taken this to mean that there are external factors affecting the dependent variable that are not contained within the model. Am I right?

Sorry, I know it's probably a stupid question but just wanted clarification!

Cheers.Dave.
 
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davemk said:
Hi, hopefully this is a simple question and easily answered.

I've been doing some reading on the subject of mathematical modelling and examples of modelling reports. In one report, the failings of the model are put down to "dynamic forces". I've taken this to mean that there are external factors affecting the dependent variable that are not contained within the model. Am I right?

Sorry, I know it's probably a stupid question but just wanted clarification!

Cheers.Dave.

Without more information it is difficult to say, but one possibility is that the model is constructed using a quasi-static approximation (things change but slowly so that dynamic effects can be ignored). Then you would expect the model to diverge from reality/experiment due to the ignored dynamic factors (forces).

CB
 
It was a study into causes of crime, using economic deprivation as an influence of crime (along with detection / conviction rates). It suggested that "neighbourhood effects" were a dynamic force affecting crime. As neighbourhood effects wasn't included in the analysis, I understood "dynamic forces" to mean influential factors that were not included in the analysis.
 
CB
davemk said:
It was a study into causes of crime, using economic deprivation as an influence of crime (along with detection / conviction rates). It suggested that "neighbourhood effects" were a dynamic force affecting crime. As neighbourhood effects wasn't included in the analysis, I understood "dynamic forces" to mean influential factors that were not included in the analysis.

Ignored factors seems plausible. Normally one would hope these are small, as otherwise it is not worth modelling without them
 

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