Grossman's missing health threshold.

Area of Science:

• Health Economics
• Biomedical Policy
• Econometrics

Background:

• The Grossman model of health capital (1972) assumes instantaneous adjustment of health stock without costs.
• This assumption leads to predictions inconsistent with empirical data, particularly the positive relationship between health and medical care demand.

Purpose of the Study:

• To present a generalized solution to the Grossman model by incorporating health stock adjustment costs.
• To address the criticism that the original model's predictions contradict real-world data on health and medical care utilization.

Main Methods:

• Developing a generalized solution to the Grossman model that accounts for health stock adjustment costs.
• Proposing structural- and reduced-form equations for empirical testing of the generalized model.

Main Results:

• The generalized model relaxes the instantaneous adjustment assumption, offering a more realistic representation of health capital dynamics.
• The revised model provides a framework to explain the observed inverse relationship between health status and medical care demand, resolving a key empirical conflict.

Conclusions:

• The generalized Grossman model offers a more empirically valid explanation for the relationship between health, medical care, and adjustment costs.
• The proposed testing framework facilitates empirical validation and comparison with existing literature, advancing health economics research.