The Role of Competitive Amplification in Explaining Sustained Performance Heterogeneity

Working Papers

This paper presents a formal model that elucidates how sustained performance heterogeneity emerges from competitive amplification due to endogenous resource investment under uncertainty. Specifically, the model shows that if resources are scale free, any small resource differences are amplified into large performance differences. Read More

Do Organic Results Help or Hurt Sponsored Search Performance?

Published Research

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

Published Research

“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