The competitive impact of service process improvement: Examining customers' waiting experiences in retail markets

In this paper, we investigate the impact of a service process improvement in front-end retail operations on the waiting experiences of shared customers, that is, those customers who patronize a retailer as well as its competitors. Our findings from two studies-a field study and a controlled laboratory experiment-suggest that while customers' waiting time perceptions are independent across competing firms, their waiting time satisfaction is interdependent. As a result, the impact of a retailer's service improvement initiative that reduces waiting times is not merely local to the retailer but propagates to its competitors through its shared customers. Specifically, such an improvement not only raises shared customers' satisfaction with the focal retailer, it also concurrently lowers their satisfaction with the retailer's competitors. By implication, current approaches that assess the impact of a service process improvement by just measuring the difference in customer satisfaction before and after the improvement may be underestimating the true impact of such improvements.