Abstract: A method, system, and computer program product for assisting buying decisions using customer behavior analysis are provided in the illustrative embodiments. Product information comprising a set of product attributes is received about a grouping of products. Customer behavior information about a behavior of a customer is received from which a set of customer buying behavior factors is extracted. A customer buying behavior factor comprises an inferred preference of the customer for buying a product from the grouping of products. A weight is assigned to a customer buying behavior factor. A set of weighted customer buying behavior factors is mapped to a subset of the product attributes. At least one product is selected from the grouping of products such that the at least one product includes a subset of product attributes, and an overall weighted score of the at least one product exceeds a threshold.