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This study examines American Customer Satisfaction Index (ACSI) data together with operating metrics for 41 U.S. restaurant chains in relation to their risk-adjusted stock-market performance. We find that ACSI plays an important role for consumer price perception, and even changes the price-traffic relationships. Study Purpose and ContributionChipotle Mexican Grill Corporation (CMG) managed to grow share price from 42$ to over 1.800$, despite meal prices being above-average (13$ as of 2019) in an industry where low meal prices are believed to drive traffic (Bass, Haruvy, & Prasad, 2006; Brown, 1990; Demydyuk, Shawky, Van Der Rest, & Adriaanse, 2015; McCall & Bruneau, 2010). CMG has notably loyal customers. With that in mind, we examine customer satisfaction at restaurants and analyze how it directly or inderectily influences financial performance of U.S. restaurant chains at all levels. There is ample research on the relationship between ACSI (American Customer Satisfaction Index) and stock market performance (Aksoy, Cooil, Groening, Keiningham, & Yalçin, 2008; Fornell, Mithas, Morgeson, & Krishnan, 2006), also for hospitality (Sun & Kim, 2013). While results highlight the importance of customer satisfaction, they cannot all confirm a positive impact of ACSI on performance (Anderson, Fornell, & Rust, 1997; Gursoy & Swanger, 2007). The literature lacks an empirical research solely in the restaurant industry that links ACSI to financial and stock performance. Distinct from previous research, and contributing to existing work in the area of non-financial performance drivers, this study uses ACSI, System Average Check (SAV), Customer Traffic (TRF) and Operating Profit per Guest (OOPG) as predictors of risk-adjusted market performance of a firm. Data, Analysis and FindingsThe data consists of a panel dataset of 41 publicly traded restaurant firms across five years (2007-2013). All the data was collected manually. Accounting and revenue information obtained from 10-K reports published by SEC. Customer satisfaction data comes from the American Customer Satisfaction Index (ACSI). Relative stock performance in a given month is the price change, plus dividends, divided by prior price. Risk-adjusted returns divide relative performance by a beta estimated using the S&P 500. Financial performance was measured by NPM, ROA, and ROE. After removing some predictors for multicollinearity, remaining variables are used to predict financial ratios and stock market performance, both in full-sample models and separating by full- vs. limited-service restaurants. Customer traffic TRF appears as key performance driver, negatively impacted by system average check SAV at all levels of performance and including times of economic downturn, although the relationship was weaker for full-service restaurants. To examine the relationship further, we included ACSI as a moderator variable for SAV. For full-service restaurants the negative effect of SAV on TRF and NPM lost its statistical significance completely. In limited-service restaurants, this effect became even stronger. However, the interval variable SAV*ACSI appeared as a positive predictor of TRF that in turn remained the main performance driver. The effect of customer satisfaction on customer willingness to pay is far more pronounced in full-service than in limited-service restaurants. In full-service restaurants, customer satisfaction represents an important positive performance driver that offsets customer price sensitivity and neutralizes the negative price-traffic relationship. This is important because full-service restaurants have limited seating capacity and thus must maximize payment per customer. While limited-service restaurants have lower prices and higher traffic as primary drivers of performance, customer satisfaction can transform a marginal price premium into increased traffic. Further workFurther analysis of customer satisfaction and price-traffic relationship in the crisis years will follow to expand this project. The findings of this part shall pinpoint what helped certain U.S. restaurant chains achieve a quick recovery after economic crises, or resilience to crisis. Additional analysis shall also include PE and PB ratios as dependent variables. As customer satisfaction appears to be an important variable in the restaurant business, there is value in further understanding its drivers for different service models. Future research should look onto consumer sentiment, e.g. food, ambiance, service, and the like to improve our understanding of satisfaction components and their influence on financial performance (Andersson & Carlbäck, 2009; Carlbäck, 2008; Nemeschansky, 2020). Empirical research in this area is needed, especially for optimal resource allocation in the restaurant business (Ittner, 2008; Nemeschansky, 2020; Wouters, 2009).