The phenomenon of sponsored search advertising--where advertisers pay a fee to Internet search engines to be displayed alongside organic (nonsponsored) Web search results--is gaining ground as the largest source of revenues for search engines. Using a unique six-month panel data set of several...

The phenomenon of paid search advertising has now become the most predominant form of online advertising in the marketing world. However, we have little understanding of the impact of search engine advertising on consumers' responses in the presence of organic listings of the same firms. In this...

This paper compares consumers' brand exploration when shopping online versus in a brick-and-mortar store. I use a new scanner dataset to compare the behavior of households shopping online and in-store at the same chain, for identical items and prices. I find that brand exploration is more...

We examine the demand for wines in Sweden using five years of weekly data on sales, advertising, and expert reviews. The effect of a favorable review peaks in the week after publication with an increase in demand of 6 percent, and the effect remains significant for more than 20 weeks. We find...

Internet advertising has been the fastest growing advertising channel in recent years with paid search ads comprising the bulk of this revenue. We present results from a series of large scale field experiments done at eBay that were designed to measure the causal effectiveness of paid search...

Existing theories of media competition imply that advertisers will pay a lower price in equilibrium to reach consumers who multi-home across competing outlets. We generalize and extend this theoretical result and test it using data from television and social media advertising. We find that...

We consider the political consequences of the use of artificial intelligence (AI) by online platforms engaged in social media content dissemination, entertainment, or electronic commerce. We identify two distinct but complementary mechanisms, the social media channel and the digital ads channel,...

The proliferation of smartphones has spawned a new industry – mobile apps. Managers increasingly recognize the potential for mobile commerce apps to “engage” customers and thereby grow sales. To measure this potential, this paper examines what drives customer usage of apps and whether app...

Today's marketing environment is characterized by a surge in multichannel shopping and ever more choice in advertising channels. This requires firms to understand how both digital and traditional advertising drive sales within the same channel (e.g., digital advertising affecting online sales)...

With the rise of social media and streaming platforms, firms and brand-owners increasingly depend on influencers to attract consumers, who care about both common product quality and consumer-influencer interaction. Sellers thus compete in both influencer and product markets. As outreach and...