Assessing Methods of Identifying Management Forecasts: CIG vs. Researcher Collected
University of Southern California
Dawn A. Matsumoto
University of Washington - Department of Accounting
Gregory S. Miller
University of Michigan - Ross School of Business
June 25, 2012
This paper examines the characteristics of management forecasts available on Thomson First Call’s Company Issued Guidance (CIG) database relative to a sample of forecasts hand-collected through a search of company press releases. Due to the significantly lower cost of using CIG (relative to hand-collecting data), academics have increasingly relied on this database as a source of management forecasts. However, it is important for researchers to consider the properties of this database (such as coverage, accuracy, and breadth) when evaluating whether it is an appropriate data source for their study. Overall, our results suggest systematic differences between forecasts reported on CIG and forecasts gathered from company press releases. We suggest several sample criteria that will remove or mitigate these biases.
Number of Pages in PDF File: 54working papers series
Date posted: March 2, 2010 ; Last revised: June 29, 2012
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