Examples: Here are few examples of complex systems models in the social, life and decision sciences.

Field	Economics	Population Epidemiology	Immunology
Agent	Consumers	Susceptibles	Cellular material
Heterogeneity	Tastes, incomes	Risk factors	Antigens, antibodies
Organization	Families, firms	Social groups	Cellular organization
Adaptation	Affect of advertising, Education	Infection avoidance or spread	Immune response
Feedback	Buying, selling trading	Disease spread	Immune response
Dynamics	Price adjustments	Disease spread	Infection spread
Emergent behavior	Inflation, unemployment	Epidemics	(Un)healthy cells

Field	Finance	Ecology	Health Care
Agent	Investors	Individual animals	Workers, doctors
Heterogeneity	Risk preferences Information	Eating, nesting, breeding habits	Health status risk behavior
Organization	Mutual funds Market makers	Schools, herds, food chains	HMOs
Adaptation	Learning	Hunting, mating, security	Insurance strategies
Feedback	Success or failure	Success or failure	Behavior/Care link
Dynamics	Stock price movements	Predator-prey interactions Competition	Joining/leaving HMOs
Emergent behavior	Market movements	Extinction, niches	Success/Failure of HMOs