In October of 2012, Google successfully transitioned Google Product Search in the US to a commercial model built on Product Listing Ads (PLA). Though this enhanced shopping experience was faced with both criticism and praise when it was announced in May 2012, advertisers have seen PLA campaigns perform with a great deal of success. In fact, by the end of September 2012, over 100,000 retailers had inventory in Google’s new shopping model just in time for the holiday season.
One month ahead of the transition, the impression share of PLAs to standard text ads was 3.9% to 96% respectively. By the end of December, PLAs were receiving 60% more (6.1%) of the total impressions. This rapid growth in impressions share was not only due to more online retailers deploying PLA campaigns, but also the increase in product related searches during the holiday season.
However, the steady increase in click share from 2.1% in January 2012 to 6.6% (210% growth) in December indicates that shoppers are finding these PLAs, rather than standard text ads, to be more relevant to their search queries regardless of seasonality. The enhanced shopping experience and increase in relevancy is further supported by the gradual increase in click-through rate (CTR) from January 2012 through December. As seasonality became more of a factor in Q4, CTR for PLAs surpassed that of standard text ads in November and December.
This trend has far reaching implications as standard text ads cost more per click than PLAs during Q4 2012. For retailers, this means that PLAs are not only cheaper, but they perform far better than standard text ads during the busiest shopping season of the year. Of course, with the increase in PLA adoption by online marketers and increase in clicks by shoppers during the holiday season, the share of spend by PLA campaigns jumped from 0.36% in October to 2.5% (600% growth) in December. In fact, in Q4 alone many retailers allocated as much as 30% of their total spend on Google towards PLAs. This speaks volume to the incremental growth in spend on Google as a result of the Product Search transition. In 2013, online retailers will undoubtedly allocate additional budget towards PLAs, continuing to build on the momentum gained in 2012.
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