Estimating Advertising Half-Life and the Data Interval Bias
We compare three methods of estimating the duration, or half-life, of how well each method works with the data aggregated over different time intervals. In contrast with the existing theory on the, so called, data interval bias, our experiments are based upon realistic advertising schedules. Our results appear to indicate that the indirect "t-ratio" estimating procedure favoured by practitioners works well in the presence of such temporal aggregation. Additionally, we suggest a transformation that can be used in combination with the indirect "t-ratio" estimating procedure to obtain estimates of the underlying microperiod half- life from a variety of common (macro) data frequencies.
|Date of creation:||Mar 1999|
|Date of revision:|
|Publication status:||Published in Journal of Targeting, Measurement & Analysis in Marketing (2000), 8, 314-334.|
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