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In which market structure does one firm sell a good or service with no close substitutes and there is a barrier blocking the entry of new firms?
Health Psychologists
Professionals specializing in the study and application of psychological principles to promote health, prevent illness, and improve healthcare systems.
Promoting Health
The process of enabling people to increase control over, and to improve, their health.
Psychological Principles
Fundamental theories or beliefs guiding the understanding and study of psychology.
Chronic Diseases
Long-lasting health conditions that may not be cured but can be controlled through medication, therapy, and lifestyle changes.
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