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The Value of Adjusting the Bias in Recommendations: International Evidence

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Author Info

  • Marina Balboa
  • J. Carlos Gómez-Sala
  • Germán López-Espinosa

Abstract

"The financial literature has shown that both earnings forecasts and investment recommendations are optimistically biased. However, while the bias in earnings forecasts has decreased over time and even some recent studies show that they are no longer optimistic, in the case of investment recommendations this bias still remains relatively constant over time. Therefore, it seems that recommendations are less credible to investors than earnings forecasts. The vast majority of recommendation studies have been carried out at the country level. In this paper, we use an international context to study whether profitable investment strategies exist when adjusting the recommendation bias of each analysed country. The adjustment we propose to correct this bias takes into account the differences across countries, and also varies in time to correct for the changes in bias over time within countries. Our empirical results show that there are in fact significant differences in the level of bias among countries, with the US and the UK being the countries with the highest bias. Second, the adjusted consensus portfolios are more orthogonal to typical investment styles (size, book-to-market and attention) and we find that investors could implement a higher number of profitable investment strategies using this adjusted measure. In this line, the results show that the countries with the lowest bias obtain the highest risk adjusted abnormal returns. Third, our work entails a practical implication, as it shows the value embedded in a simple necessary adjustment in the global asset management context. This is an important result showing that profitable investment strategies exist when considering a global portfolio based on adjusted recommendations." Copyright (c) 2007 The Authors Journal compilation (c) 2007 Blackwell Publishing Ltd.

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Bibliographic Info

Article provided by European Financial Management Association in its journal European Financial Management.

Volume (Year): 15 (2009)
Issue (Month): 1 ()
Pages: 208-230

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Handle: RePEc:bla:eufman:v:15:y:2009:i:1:p:208-230

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Cited by:
  1. Christopher Koch & Ola Nilsson & Katarina Eriksson, 2014. "Does shareholder protection affect the performance of analysts as a gatekeeper?," Journal of Management and Governance, Springer, vol. 18(2), pages 315-345, May.
  2. Anolli, Mario & Beccalli, Elena & Molyneux, Philip, 2014. "Bank earnings forecasts, risk and the crisis," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 29(C), pages 309-335.

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