Answer: Psychological pricing
Explanation: The psychological pricing policy refers to a pricing strategy which could be said to have given rise to the use of price points whereby price of products are not perfectly rounded to rational whole numbers such example is when a product which cost $10.00 as in the scenario above is instead attached a price of $9.99. These imperfectly rounded numbers tend to have a greater psychological effect on buyers than perfectly rounded figures as buyers seem to portray these numbers as being lower than they are in actual sense.