The specification of the market expectation of accounting numbers is a common feature of many empirical studies in accounting and finance. Givoly and Lakonishok (1979) found that financial analysts' forecasts have information content. This study evaluates the quality of analysts' forecasts as surrogates for the market expectation of earnings and compares it with that of prediction models commonly used in research. Results indicate that prediction errors of analysts are more closely associated with security price movements, suggesting that analysts' forecasts provide a better surrogate for market expectations than forecasts generated by time-series models. The study also identifies factors that might contribute to the performance of the financial analysts'forecasts. The broadness of the information set employed by analysts and, to a lesser extent, their reliance on information released after the end of the fiscal year appear to be important contributors to their performance.