Going far beyond previous empirical work, John Kotter and James Heskett provide the first comprehensive critical analysis of how the "culture" of a corporation powerfully influences its economic performance, for better or for worse. Through painstaking research at such firms as Hewlett-Packard, Xerox, ICI, Nissan, and First Chicago, as well as a quantitative study of the relationship between culture and performance in more than 200 companies, the authors describe how shared values and unwritten rules can profoundly enhance economic success or, conversely, lead to failure to adapt to changing markets and environments.