Winterich conducts research in the area of consumer behavior, with specific interests in the effects of consumer identities and emotions on consumer judgments and decision-making. Her research focuses on examining the effect of cultural and moral identities on charitable giving and brand evaluations as well as the impact of emotions on consumer decisions and consumption. Her research has been published in the Journal of Consumer Research, Journal of Marketing Research, Journal of Marketing, Journal of Applied Psychology, International Journal of Research in Marketing, Organizational Behavior and Human Decision Processes, and the Personality and Social Psychology Bulletin, among others. S