# Prof. Bryan Bollinger's research on the impact of reusable grocery bags is cited

1 Faculty News February 22, 2014 ![](/sites/default/files/styles/246w/public/assets/images/con_033707.jpg?itok=9MLZHUYu)>

Excerpt from [PsychCentral](http://psychcentral.com/news/2014/02/22/reusable-grocery-bags-influence-shoppers-choices/66248.html) -- "The researchers, Uma R. Karmarkar, Ph.D., assistant professor of business administration at HBS, and [Bryan Bollinger](http://www.stern.nyu.edu/faculty/bio/bryan-bollinger), Ph.D., assistant professor of marketing at New York University’s Leonard N. Stern School of Business, were surprised to find that the influential effects linked to reusable bags were not causal, but seemed to worked in tandem, pushing shoppers in seemingly opposite directions at the same time."

[Read more](http://psychcentral.com/news/2014/02/22/reusable-grocery-bags-influence-shoppers-choices/66248.html)