Bad news for teenage girls: A new study by Ayalla Ruvio, an assistant professor of marketing at Temple's Fox School of Business, finds that mothers have a much stronger tendency to mimic their daughters' consumption behavior than vice versa. This phenomenon — an intentional decision-making process of whom to mimic and how — produced a new term: the consumer doppelganger effect. "The one thing the girls do not like is to look like their mothers," Ruvio said. "They're trying very, very hard to establish a separate, distinct image of who they are, and then the mother goes out and mimics them."