E-Mail College Park, Md. - Companies have often considered app adoption among their customers to have a positive impact on customer spending. According to new research from marketing professor P.K. Kannan at the University of Maryland's Robert H. Smith School of Business, higher app adoption among hotel chains could be linked to lower spending among lower-level loyalty customers, who are more likely to use apps to get the best deals. Kannan worked with Xian Gu, an assistant professor of marketing at Indiana University, for the research, published as "The Dark Side of Mobile App Adoption: Examining the Impact on Customers' Multichannel Purchase," in the