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  • Identify & count subsequent observations

    Dear Statalist-Community,

    The Data set is a panel with years, analysts, firms and forecasts etc from I/B/E/S. My sample period is 2001 to 2007. The goals are:

    (1)How many years have analyst i worked in year t? --the first year analyst i gave forecast to year t

    (2)How many years have analyst i followed firm j in year t?--the first year analyst i gave forecast for firm j to year t

    Additional info: Analysts usually publish forecasts for multiple firms per year. The data set has already been reduced as there has only the last forecast of analyst i for firm j in year t been kept.

    Thanks in advance.
    Howard

  • #2
    Duplicate of earlier post

    https://www.statalist.org/forums/for...ts-have-worked

    at which advice has been given about improving the presentation of the question.

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