Purchase intention (or purchase intent) is a specific measure or rating of consumers’ stated purchase likelihood.
Information on this subject is gathered through survey respondents’ reactions to such propositions as, “It is very likely that I will purchase this product.”
The implication is inherent desire independent of distribution influence including availability and in-store factors. 
- ^ Farris, Paul W.; Neil T. Bendle; Phillip E. Pfeifer; and David J. Reibstein (2010). Marketing Metrics: The Definitive Guide to Measuring Marketing Performance (Second Edition). Upper Saddle River, New Jersey: Pearson Education, Inc.