How to Design Keywords in Search Engine Advertising: A Multi-group Comparison Based on the Search Volume of the Product Type

Ampler Nadine, Lehmann-Zschunke Nina and Olbrich Rainer
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Ampler Nadine: FernUniversity Hagen, Hagen, Germany
Lehmann-Zschunke Nina: FernUniversity Hagen, Hagen, Germany
Olbrich Rainer: FernUniversity Hagen, Hagen, Germany

Review of Marketing Science, 2025, vol. 23, issue 1, 173-206

Abstract: Extant studies addressing keyword design in search engine advertising do not account for the popularity of the product type being promoted. We close this research gap with an empirical study using quantitative data from a German online retailer over three years. We find the search volume of the advertised product type should be considered when designing keywords. To simultaneously increase the click-through rate and save click costs, advertisers should only increase the number of product details and the keyword quality for product types with a high search volume. This research demonstrates how keywords can be designed according to product type in order to utilize the available advertising budget in a targeted manner.

Keywords: keyword design; search engine advertising; product type; multi-group comparison; search volume (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1515/roms-2024-0020

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