Trust is both ethically important and essential for business but difficult to measure. This paper contributes toward clarifying the nature of trust in a way that is both conceptually helpful for ethical inquiries concerning business and pertinent to the measurement of trust as an element in organizations. Several papers hypothesize that increasing the role of trust in a corporation reduces the need for external monitoring and contracts. Assessing this important hypothesis requires a way to gauge whether a firm has a (...) trusting corporate culture. We develop an objective measure of trust in a firm’s corporate culture by counting the number of times 21 trust-related words appear in an important kind of document: the Management Discussion and Analysis section of the annual report. We report two significant findings: that, contrary to what one might think, firms with a trusting culture frequently use audit and control-type words and that trust is positively linked with subsequent share price volatility. We propose explanations of these findings with the hope of facilitating the objective measurement of trust and enhancement of a trusting atmosphere in corporate culture. (shrink)