Element; Commercial Approach; Social Marketing Approach
Product; Physical good or service; A new habit or value-driven concept ("recycle batteries," "get checked")
Price; Financial cost; Overcoming friction and barriers (inertia, inconvenience, friction of habit)
Place; Stores, marketplaces; Points of transformation (storefront displays, interactive retail zones, social media)
Promotion; "Buy now at 20% off"; "Take the first step—here is why it matters and how easy it is"