This paper argues that allergic rhinitis can affect housing prices indirectly. The mechanism is not a simple disease discount. Instead, allergy risk changes how households value air quality, vegetation, ventilation, and seasonal comfort. Those preferences can be capitalized into prices through the same channels by which markets price noise, pollution, open space, and other environmental amenities.
1. Mechanism
Allergic rhinitis imposes direct and indirect costs: treatment, medication, lower sleep quality, and productivity losses. For a household with allergic members, a home in a pollen-heavy or poorly ventilated microenvironment is not equivalent to a similar home in a cleaner setting. The difference is a recurring cost of occupancy.
2. Housing Market Channel
Hedonic pricing theory treats a dwelling as a bundle of attributes. Size, transit, schools, quietness, air quality, nearby open space, and perceived health risk can all influence willingness to pay. Allergic rhinitis enters this bundle through environmental exposure rather than through the medical diagnosis itself.
3. Green Space Ambiguity
Green space is usually an amenity, but allergy-sensitive buyers may distinguish between well-managed, low-allergen landscapes and poorly maintained vegetation that produces pollen, mold, or dampness. The price premium of greenery therefore depends on ecological quality, not only quantity.
4. Testable Hypothesis
A practical empirical design would combine transaction prices, building attributes, pollen exposure, tree species, air pollution, clinic visits, and seasonality. A hedonic model could then estimate whether higher allergy-risk exposure is associated with lower prices after controlling for conventional location advantages.
