PUBH5036 Chap.5 Systems, Causation and Power
Systems, Causation and Power
Systems thinking examines patterns produced by interacting parts, feedback, delays, rules and adaptation. It distinguishes simple, complicated and complex problems and uses maps to locate relationships worth changing. The chapter also analyses power through visible decisions, agenda control, resources, norms and accepted knowledge, with commercial determinants and privilege treated as mechanisms rather than rhetorical labels.
Patterns over time prevent snapshot error. A temporary improvement may reflect delay, displacement or a short-lived balancing response rather than system change. Sketch how the key outcome behaved before the intervention and predict its trajectory afterward. Then select an indicator for the underlying relationship, not only the most visible end point. This makes adaptation detectable before the original pattern returns.
A chapter-specific concept index links complexity, emergence, feedback, reinforcement, balancing, delay, adaptation, boundary, stock, flow, leverage, trajectory, pattern, nonlinearity, network, resilience, path-dependence, agenda, resources, authority, norms. These terms should be connected through mechanisms rather than memorised as isolated labels.
What this chapter covers
- 01
Simple, complicated and complex problems
- 02
Feedback, delay and adaptation
- 03
System boundaries and patterns over time
- 04
Visible, agenda-setting and structural power
- 05
Commercial determinants of health
- 06
Leverage points and intervention portfolios
Move beyond repeated education campaigns
- 1Define the pattern in exposure, access and outcomes over time.
- 1Map reinforcing relationships involving supply, marketing, demand and political power.
- 1Identify balancing forces and institutional levers.
- 1Combine immediate support with environmental and structural measures.
- 1Monitor substitution, unequal burden and adaptive response.
Key terms
- Complex system
- A system whose patterns emerge through interacting, adaptive parts and cannot be understood by adding isolated effects.
- Feedback loop
- A closed chain of influence that reinforces or counteracts change over time.
- Delay
- A time gap between cause, system response and visible outcome that can obscure policy effects.
- System boundary
- The stated population, institutions, relationships and time horizon included in an analysis.
- Leverage point
- A relationship, rule, resource flow or goal where change can alter a wider pattern.
- Commercial determinants
- Commercial systems and practices that shape health exposure, resources, policy and conditions.
Systems, Causation and Power FAQ
Why is a system not just a list of factors?
A system account explains relationships, feedback, time and adaptation. A list does not show how a pattern is reproduced. System Not reasoning should be applied to a named population and setting, with the responsible actor, evidentiary limit, distributional consequence and review condition stated before reaching a recommendation.
How should a boundary be chosen?
Match it to the decision, population and time horizon, then name important influences excluded from the map. Boundary Be reasoning should be applied to a named population and setting, with the responsible actor, evidentiary limit, distributional consequence and review condition stated before reaching a recommendation.
What is the difference between complicated and complex?
Complicated problems can have many parts yet remain predictable with expertise; complex parts adapt and generate changing patterns. Difference Between reasoning should be applied to a named population and setting, with the responsible actor, evidentiary limit, distributional consequence and review condition stated before reaching a recommendation.
How does power enter a systems map?
Show who controls decisions, agendas, resources and accepted categories and how that control affects pathways and response. Power Enter reasoning should be applied to a named population and setting, with the responsible actor, evidentiary limit, distributional consequence and review condition stated before reaching a recommendation.
What makes a leverage point credible?
There is a specified mechanism, an actor with authority, feasible resources and indicators capable of showing system movement. Makes Leverage reasoning should be applied to a named population and setting, with the responsible actor, evidentiary limit, distributional consequence and review condition stated before reaching a recommendation.
Exam move
Map one recurring pattern with no more than ten nodes. Label feedback and delays only when you can explain the mechanism. Identify one structural, one institutional and one supportive intervention, predict adaptation and choose an indicator for review. Categories can exercise power.
When an institution defines a problem as non-compliance, personal responsibility or insufficient awareness, it narrows the range of legitimate remedies. Test a competing definition and trace which actors gain or lose authority under it. This reveals why apparently technical debates over indicators or terminology can carry material consequences for funding and policy. Portfolios need sequencing.
Immediate support may reduce harm while slower regulatory or structural changes develop. Specify which component protects people now, which changes recurring exposure and how the two interact. Without sequencing, a long-term promise can excuse present neglect, while an emergency program can become a substitute for structural reform.
Retrieval practice for this topic should also distinguish discourse, privilege, commercial, determinant, lobbying, marketing, procurement, supply-chain, substitution, displacement, regulation, political, economy, institutional, routine, information, flow, goal, function, unintended, consequence. Sort them into definitions, causes, evidence limits, responsible actors, safeguards and review indicators.
Start with a pattern over time and build a map of no more than ten connected elements. Mark only feedback you can explain, add one delay and identify the actor controlling each resource or rule. Remove nodes that do not change a decision. Test an intervention for displacement, substitution and strategic response by commercial or political actors.
Sequence immediate protection and structural change, then choose a measure of the underlying relationship rather than relying only on the final health outcome.
