This book helps portfolio managers, pension consultants, and investors understand the factors that affect the performance of equity market segments. Richard Bernstein, the acknowledged leader in market segmentation and style investment research, defines numerous market segments and examines how each is affected by a combination of macroeconomic, microeconomic, and expectational factors. He explains the conditions under which various investment styles will and won't work and analyzes each style strategy according to its historical performance in both economical and expectational contexts. He then goes on to discuss the practical implications of these findings for institutional investors - especially pension plan sponsors - and explains the use of equity derivatives.