Final answer:
Momentum buying is incorrectly described in the question; it refers to a stock market practice where investors buy stocks that are increasing in value with the expectation that the trend will continue, not to the propensity of buying additional products after an initial purchase.
Step-by-step explanation:
False. Momentum buying does not mean being more receptive to adding to a purchase with a complementing product once the commitment to the initial purchase has been made. That concept is more closely related to cross-selling. Instead, momentum buying refers to the practice in the stock market or among investors where they purchase stocks with the expectation that they will continue to rise because they have done so in the past.
It's a strategy based on the trend of a security's price, which is often used by investors who believe that the momentum of the stock will continue in the same direction. Therefore, the definition given in the question does not accurately describe momentum buying in the context of investment.