Because frequently random assignment is not feasible in educational studies, our understanding of causal effects of student characteristics on academic performance has made little progress over the years. Omitted variables inducing correlations between regressors and error terms in multilevel...

This research compares three strategies that ads can use to convey which product and brand they promote, and it tests how these affect consumer evaluation and the resulting attitudes towards the ad and brand, under exposure durations that range from brief to long. Upfront ads immediately convey...

We propose a general framework for dealing with endogeneity in models in marketing and economics. It consists of a multivariate, hierarchical, mixed discrete/continuous representation of behavioral response variables. Importantly, it includes a non-parametric approximation to unobserved sources...

We present an adaptive personalization system for personalizing news feeds on mobile devices. It learns from an individual's reading history, automatically discovers new material as a result of shared interests in the user's social network and adapts the news feeds shown to the user. We develop...

Gaze direction and the facial expression of emotion are the two most important facial cues in non-verbal communication. This research involves three eye tracking experiments to investigate the joint effects of facial expression (neutral/happy) and gaze direction (direct/averted) of models on...

Attention research in marketing has built on psychological theories and findings on the role of attention in visual exploration, search and choice. It has applied and tested these theories in natural settings, and extended them where needed. Some of the main theoretical constructs and findings...

Nodules that may represent lung cancer are often missed in chest X-rays by radiologists. Recording of eye movements during search for nodules provides insights into the search process. We develop a Hierarchical Bayes Hidden Markov Model (HMM) and analyze eye tracking data of sixteen laymen...

Can online display advertising help consumers to more successfully search for their preferred brands, and thus reduce the impact of competitive clutter on shopping sites? Moreover, if advertising indeed has such direct brand search benefits, which attentional mechanisms account for it? To answer...