In this paper, we propose combining data from both surrogate and true outcomes to improve decision-making within a late-phase clinical trial.…Read More
Adaptive Clinical Trial Designs With Surrogates: When Should We Bother?
Bayesian learning
Do Organic Results Help or Hurt Sponsored Search Performance?
We study the impact of changes in the position of competing listings in organic search results on the performance of sponsored search advertisements. Using data for several keywords from an online retailer’s ad campaign, we measure the impact of organic competition on both click-through rate and conversion rate of sponsored search ads for these keywords.…Read More
Neighborhood Social Capital and Social Learning for Experience Attributes of Products
“Social learning” can occur when information is transferred from existing customers to potential customers. It is especially important in cases where the information that is conveyed pertains to experience attributes, i.e., attributes of products that cannot be fully verified prior to the first purchase.…Read More