Deepak Sirdeshmukh

Develops a multidimensional trustworthiness model with operational competence, operational benevolence, and problem-solving orientation as key dimensions that build or deplete consumer trust. Tests a framework for how trustworthiness affects consumer trust and how that trust converts into value and loyalty in two service industry contexts.

Integrates agency theory and consumer trust research to explain how signaling investments, price premiums, and trust mechanisms cooperate and compete to shape encounter satisfaction and long-term loyalty.

Examines how four types of organizational capital — financial, customer relational, operational, and human — interact with environmental threat perceptions to influence product exploration and exploitation. Finds differential effects in the impact of financial versus relational capital on organizational innovation.

Introduces a dispositional approach to industry context effects, proposing that consumer dispositions of valence and marketplace efficacy directly affect, and moderate, the satisfaction–trust–value–loyalty model.

Develops and tests a model of user loyalty and commitment toward search engines, with search engine value as a central mediator. Finds that functional performance drives value and satisfaction, while aesthetic performance shapes reputation for innovation — and that both predict user loyalty and commitment.

Secondary analysis of a randomized trial showing that combining quantity-level electronic monitoring with reminders reduced out-of-range dosing weeks from 21% to 5% in psoriasis patients. The first study to demonstrate that sensor-verified quantity measurement can meaningfully improve both dose frequency and dose amount adherence.

Surveys patients with vulvar lichen sclerosus to identify which disease education topics they most want to learn about. Disease description and triggers rated highest, followed by topical treatment options.

Uses electronic cap monitoring to track topical therapy adherence across pre-holiday, holiday, and post-holiday periods. Overall adherence dropped from 80% pre-holiday to 43% during the holidays and 37% post-holiday.