Based on two samples of high quality personality data for chief executive officers (CEOs), we use linguistic features extracted from conferences calls and statistical learning techniques to develop a measure of CEO personality in terms of the Big Five traits: agreeableness, conscientiousness,...

Purpose - The paper examines the relationships between CEOs' personal traits, emotions, attitudes and tolerance of ambiguity; and subsequently, the influence of CEOs' ambiguity tolerance in firms' performance. Design/methodology/approach - Survey data were collected from 256 ICT firms...