Definition
Substitutability is the degree to which one product, service, or idea can be used in place of another. High substitutability means consumers easily switch if the price or availability changes. Consider generic brands versus name brands; if the price difference is significant, many opt for the generic because of high substitutability. Low substitutability implies strong brand loyalty or unique features. Think of artisan goods; their uniqueness makes them harder to replace. Ultimately, it's about how easily something can be swapped without noticeable difference in the consumer's eyes. This concept is key in economics and marketing.