Despite substantial efforts to help consumers search in more intuitive ways, text search remains the predominant tool for product discovery online. In this paper, we explore the effects of visual and textual cues for search refinement on consumer search and purchasing behavior. We collaborate...

In this study the dynamics of online product ratings is modeled based on the data for 59 items from 20 product categories. We account not only for the context dependence of subsequent reviews on previously posted reviews, but also for product type (search product or experience product). We...

With its judgment of 10th November 2021, Europe’s General Court did not just dismiss Google’s appeal against the European Commission’s Google Search (Shopping) decision, uphold the fine, tell gatekeepers “don’t be evil,” and remind everyone that Europe ensures equal opportunities....

Consider the problem faced by a decision maker (DM) who must select the order in which to evaluate the unknown alternatives displayed by an online search engine. DMs do not know the distribution of the realizations that result from clicking on an alternative and must therefore account for the...

The Web is the largest human information construct in history transforming our society. How can we understand, measure and model the Web evolution in order to design effective policies and optimize its social benefit? Early measurements of the Internet traffic and the Web graph indicated the...

This study examines the situation in which a monopolist offers freeware as an advertisement for the increase of demand to maximize profit even though the existence of such freeware will reduce the power of the monopolist in the market. This study proves that the successful application of...

Consumers commonly seek information from critic and consumer reviews when new product quality remains uncertain. However, consumer reviews are endogenous and may be subject to potential biases (e.g., self-selection). In this paper, we propose a new dynamic structural model where forward-looking...

The digital revolution has allowed sellers to make large assortments of products available to consumers. Recommendation systems have played a central role in this dynamic. At the core of these systems is the use of data and sophisticated algorithms to predict match values between products and...

Advertisements provide consumers with knowledge about private products, whereas political information is required to provide voters with knowledge of public issues. Modern information technologies and globalization are increasing the exposure of individuals to information. Goods advertising is...

Platforms often display their products ahead of third-party products in search. Is this due to consumers preferring platform-owned products or platforms engaging in self-preferencing by biasing search towards their own products? What are the welfare implications? I develop a structural model of...