With the rapid growth of omnichannel retailing, digitally native retailers are increasingly opening physical stores. A critical issue for many digitally native retailers is to estimate the causal effect of a new store opening on their online sales. To assess the causal effect, a randomized...

In this paper we consider using a factor-model-based method, also known as the generalized synthetic control method, to estimate average treatment effects. This method is best suited for cases where there is only one (or a few) treated unit(s), a large number of control units, and large pre and...

The difference-in-differences (DID) method is the most widely used tool to answer causal questions from quasi-experimental data in marketing and the broader social sciences. Since assignment to treatment is often not random, the selection of proper control units is critically important for...

Marketing scientists often estimate causal effects using data from pre/post test/control quasi-experimental settings. We propose a new, easy to implement Augmented Difference-in-Differences (ADID) method that complements existing approaches to estimate the average treatment effect on the treated...

This research investigates the determinants and role of consumer trust in e-business. It examines consumer perceptions of trust in a Web site and addresses the following key research questions: What factors influence consumer trust in a Web site and what specific Web site trust cues are...

As economies are increasingly driven by services, the introduction of newservices to satisfy customers and improve firm value is becoming a critical issue formanagers. In my dissertation, I take a step in improving the understanding of serviceinnovations.In the first essay, I look at the...

Interorganizational alliances are widely recognized as critical to product innovation. A notable trend is the rapid growth of new product development (NPD) alliances between large, well-established firms and small, growing firms. This dissertation is comprised of two studies on the formation and...

Two important issues regarding international market entry strategy remain largely unexplored: international launch time window (the elapsed time between product launch in the home country and launch in the focal country) and country sequence. First, I investigate the factors that drive...

Over half of all shopping journeys start with the mobile channel. In particular, the presence of a branded mobile app significantly influences shopping across channels. However, a majority of app users decrease app usage or even abandon an app, in part, due to app service failure(s). Do app...

We propose a theory-based model of the shopper journey, incorporating the rich literature in consumer research and marketing research. We also take into account the evolving retailing landscape, characterized by significant knowledge, lifestyle, technological, and structural changes. With...