This forth volume of the JIDR is devoted to a wide range of research themes, which are all linked to the concept of diversity; both implicitly and explicitly. In addition, this volume showcases research related to the doctorate journey. As the mission statement and title of our journal suggests, our goal is to promote excellence in publications with a focus on both doctorate studies and also on research disseminated from specific doctorate studies. In next yearIs journal, empirical data will be presented which investigates variables which impact the isafe navigation of the doctoral voyageI. Elements such as choice of research methodology, professional background, family issues, career path, gender and choice of supervisor all impact the success rate of PhD candidate. Two of our articles this year therefore showcase the doctoral research journey.

This issue of the Journal of Doctoral Research is devoted to a wide range of research topics which are all linked, implicitly or explicitly to Internationalization issues. The discussions in these articles - and indeed in current leadership literature in general - highlight number of recurring and yet unresolved issues in these research fields. The most critical of these is whether culture and ethics matter in international business and leadership.