While firms increasingly adopt open innovation, little is known about whether firms gain or lose from this innovation approach. Motivated by this research gap in the literature, the thesis explores the antecedents and performance implications of open innovation strategies, particularly...

WThis doctoral thesis focuses on the effects of investor sentiment on asset pricing and the challenges of portfolio optimization under parameter uncertainty. The first essay "Sentiment risk premia in the cross-section of global equity" applies a recently developed sentiment proxy to the...