If a phenomenon is new, rare, or complex, the best research method is

Qualitative Research Method.

In the face of increased complexity of empirical phenomena in these fields of research, we make the case for qualitative research methods as one valuable methodological option for researchers to gain a better understanding of complex phenomena. By unbundling the challenges that the empirical examination of complex phenomena imposes on researchers, we outline that qualitative research methods are particularly well-suited to cope with these challenges. To shed more light on how researchers may use qualitative data to draw theoretical inferences, we propose an analytical approach for the examination of complex phenomena that systematically discloses the inner logic of these phenomena in a step-wise process.