Ellis, Joseph Ahead of the curve : a commonsense guide to forecasting business and market cycles / Joseph H. Ellis - Boston, Mass. : Harvard Business School Press, 2005 - xxiii, 276 p. : ill. ; 25 cm. Includes bibliographical references (p. 265-266) and index ISBN: 1591396913 (hbk.) RM105.72 Subjects--Topical Terms: Economic forecasting