Constructing Delphi statements for technology foresight

Since its introduction decades ago, the Delphi method has become a popular instrument of broad application within the field of technology foresight and for wider science, technology, and innovation policy-making. The Delphi method has also attracted interest from a methodological perspective. The literature on the Delphi method demonstrates a research gap on the issue of Delphi statements and respondents' understanding of those statements. Based on a systematic literature review, this paper examines the existing knowledge and practices in constructing Delphi statements. A key contribution of the paper is a set of practical recommendations for constructing Delphi statements for technology foresight. Furthermore, the paper suggests future research on the topic.