In collaboration with an online seller of home-improvement products, we conduct a large-scale randomized field experiment to study the effects of retargeted advertising – a form of internet advertising in which banner ads are displayed to users after they visit the advertiser's web site. We...

Abstract We investigate the cross channel effects of search engine advertising on Google.com on sales in brick and mortar retail stores. Obtaining causal and actionable estimates in this context is challenging: Brick and mortar store sales vary widely on a weekly basis; offline media dominate...