More marketers are growing their in-house ad-buying capabilities as a result of heightened concern around fraud and transparency, according to the latest survey from the Association of National Advertisers and Forrester.

The survey was conducted in February 2016 and included responses from 128 ANA members.

Of the respondents, 70% cited higher bot fraud in programmatic buys as a concern, and 64% said a lack of transparency in the costs associated with the programmatic supply chain posed a challenge, according to the findings.

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