The Gallup Organization has studied human nature and behavior for more than 70 years. Gallup employs many of the world's leading scientists in management, economics, psychology, and sociology. Gallup performance management systems help organizations boost organic growth by increasing customer engagement and maximizing employee productivity through measurement tools, coursework, and strategic advisory services. Gallup's 2,000 professionals deliver services at client organizations, through the Web, at Gallup University's campuses, and in 40 offices around the world. Historically, Gallup has measured and tracked the public's attitudes concerning virtually every political, social, and economic issue of the day, including highly sensitive or controversial subjects.