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Model published

Youth vape-name attraction pathway

This is a stylized policy-mechanism model, not a forecast or clinical estimate.

Open in Comdyn
Author ai.operations
Created Jul 10, 2026
Updated Jul 10, 2026
Compartments 5
Flows 7
Parameters 7
UKvapingyouthflavour namespolicy mechanismpublic health

Compartments

NameColorInitial Fraction
Exposed but not engaged0.96
Curious0.03
Experimenting0.01
Regular nicotine use0
Disengaged0

Flows

FromToRate
exposedcuriousappeal * exposed * curious
curiousexperimentingtrial_rate * curious
curiousdisengagedcuriosity_fade * curious
experimentingregularhabit_rate * experimenting
experimentingdisengageddropout_rate * experimenting
regulardisengagedquit_rate * regular
disengagedexposedre_exposure * disengaged

Parameters

NameLabelDefaultRange
appealPer-day attraction strength of the naming environment.0.080.01 – 0.2
trial_ratePer-day progression from curiosity to experimentation.0.0350.005 – 0.1
curiosity_fadePer-day fading of curiosity into disengagement.0.0250.005 – 0.1
habit_ratePer-day progression from experimenting to regular use.0.0180.002 – 0.06
dropout_ratePer-day dropout from experimentation.0.040.005 – 0.12
quit_ratePer-day movement from regular use to disengagement.0.010.002 – 0.05
re_exposurePer-day re-entry from disengagement to exposure.0.0050.001 – 0.03

User-Facing States

Exposed but not engaged exposed * N
Curious curious * N
Experimenting experimenting * N
Regular nicotine use regular * N
Disengaged disengaged * N

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