Essays on crowd-based idea evaluation - empirical evidence from an anonymous online crowd
Elektronische Ressource, Paderborn, 2019
Essays on modeling languages and software tools for business model innovation: theory and empirical evidence
Elektronische Ressource, Paderborn, 2022
Essays on online reviews: insights on the review process for B2C and B2B markets
Elektronische Ressource, Paderborn, 2024

Essays on the theory of industrial organization: credence goods, vertical relations, and product bundling
Elektronische Ressource, Paderborn, 2020
