5Bidwell,C.M. How Good is Institutional Brokerage Research?. Journal of Portfolio Management, 1977, 3(1): 26-31
6Dimson,E., P.Marsh. An Analysis of Brokers' and Analysts' Unpublished Forecasts of UK Stock Returns. Journal of Finance, 1984,39(5): 1257-1292
7Ehon,E., M.J.Gruber, S.Grossman. Discrete Expectational Data and Portfolio Performance. Journal of Finance, 1986, 41(3): 699-714
8Stickel,S.E.. The Anatomy of the Performance of Buy and Sell Recommendations. Financial Analysts Journal, 1995, 9(1): 25-39
9Womack,K.L.. Do Brokerage Analysts' Recommendations Have Investment Value?. Journal of Finance, 1996, 51(1): 137-167
10Barber, B., R.Lehavy, M.McNichols, B.Trueman. Can Investor Profit from the Prophets?: Security Analyst Recommendations and Stock Returns. Journal of Finance, 2001, 56(2): 531-563