The size of the equity risk premium remains an unanswered question in the accounting and finance literature. This study proposes a new approach to reverse-engineer the equity risk premium, distinct from prior research, in that it does not rely on analysts' forecasts to proxy for the market's earnings expectations. That I instead use time-series earnings forecasts allows an investigation of the equity risk premium across a broader cross-section of firms, including smaller firms that are not covered by analysts. This study finds that risk premia are significantly higher for firms not followed by analysts. This suggests that studies requiring analysts' earnings forecasts to estimate the equity risk premium have likely underestimated its overall level. Additional validity tests on my firm- and year-specific risk premium estimates reveal that these estimates consistently and predictably relate to multiple measures of risk, particularly for firms not followed by analysts.

Das Thema Risikoprämie für Aktien (Equity Risk Premium) wird hier zum ersten Mal verständlich erklärt. Die Risikoprämie für Aktien stellt einen Renditeausgleich dar für das erhöhte Risiko, das ein Anleger bei der Investition in Aktien eingeht, im Vergleich zu einer Investition in risikofreie Staatsanleihen. Die Risikoprämie ist zwar von der Theorie her einfach, jedoch in der Praxis ein sehr komplexes Phänomen. Für Finanzentscheidungen ist es von größter Bedeutung, daß man das Prinzip der Risikoprämie versteht und es anwenden kann. Cornell erläutert das Thema Schritt für Schritt sehr anschaulich und ohne terminologischen Ballast. Zunächst wird die Risikoprämie im Zusammenhang mit der Geschichte des Aktienmarktes betrachtet. Der Haussemarkt der 90er dient dabei als Fallstudie. Cornell zeigt, welche Rückschlüsse man durch die Analyse der Risikoprämie im historischen Verlauf für den Aktienmarkt ziehen kann, z.B. ob Aktienkurse steigen oder fallen oder ob sich der Aktienmarkt verändert. Vorausschauende Schätzungen der Risikoprämie werden anhand verschiedener konkurrierender Modelle analysiert, wobei die Vorzüge der jeweiligen Methode mitbewertet werden. 'Equity Risk Premium' ist das erste Buch, das dieses wichtige Prinzip der Risiko-Nutzen-Analyse erschöpfend behandelt. Es vermittelt einen tiefen Einblick und deckt alle Grundlagen ab, damit Investoren fundierte Finanzentscheidungen treffen können. Ein absolutes Muß für institutionelle Anleger, Geldmanager und Finanzvorstände, die auf eine fundierte Marktanalyse zurückgreifen müssen. (06/99)

Research into the equity risk premium, often considered the most important number in finance, falls into three broad groupings. First, researchers have measured the margin by which equity total returns have exceeded fixed-income or cash returns over long historical periods and have projected this measure of the equity risk premium into the future. Second, the dividend discount model—or a variant of it, such as an earnings discount model—is used to estimate the future return on an equity index, and the fixed-income or cash yield is then subtracted to arrive at an equity risk premium expectation or forecast. Third, academics have used macroeconomic techniques to estimate what premium investors might rationally require for taking the risk of equities. Current thinking emphasizes the second, or dividend discount, approach and projects an equity risk premium centered on 3½% to 4%.

Research on the implied cost of capital (ICC) has found that the equity risk premium is approximately 3%, on average, much lower than estimates based on the mean of historical stock market returns. The validity of such ICC estimates, however, faces both theoretical and empirical challenges. The theoretical equivalence between ICC and expected return requires the stringent condition that the latter is a constant, which is inconsistent with theory and empirical evidence. The empirical estimation of ICC depends on short-run and long-run earnings forecasts, whose biases can severely limit the validity of the estimates. By employing a forecasting procedure that induces little bias in both short-run and long-run forecasts and taking into account the stochastic nature of expected returns, we show that the average market risk premium ranges between 3% and 6%. We also demonstrate that the results of prior research are affected by input errors that are partially self-canceling.

What is the return to investing in the stock market? Can we predict future stock market returns? How have equities performed over the last two centuries? The authors in this volume are among the leading researchers in the study of these questions. This book draws upon their research on the stock market over the past two dozen years. It contains their major research articles on the equity risk premium and new contributions on measuring, forecasting, and timing stock market returns, together with new interpretive essays that explore critical issues and new research on the topic of stock market investing. This book is aimed at all readers interested in understanding the empirical basis for the equity risk premium. Through the analysis and interpretation of two scholars whose research contributions have been key factors in the modern debate over stock market perfomance, this volume engages the reader in many of the key issues of importance to investors. How large is the premium? Is history a reliable guide to predict future equity returns? Does the equity and cash flows of the market? Are global equity markets different from those in the United States? Do emerging markets offer higher or lower equity risk premia? The authors use the historical performance of the world's stock markets to address these issues.

What is the return to investing in the stock market? Can we predict future stock market returns? How have equities performed over the last two centuries? The authors in this volume are among the leading researchers in the study of these questions. This book draws upon their research on the stock market over the past two dozen years. It contains their major research articles on the equity risk premium and new contributions on measuring, forecasting, and timing stock market returns, together with new interpretive essays that explore critical issues and new research on the topic of stock market investing. This book is aimed at all readers interested in understanding the empirical basis for the equity risk premium. Through the analysis and interpretation of two scholars whose research contributions have been key factors in the modern debate over stock market perfomance, this volume engages the reader in many of the key issues of importance to investors. How large is the premium? Is history a reliable guide to predict future equity returns? Does the equity and cash flows of the market? Are global equity markets different from those in the United States? Do emerging markets offer higher or lower equity risk premia? The authors use the historical performance of the world's stock markets to address these issues.