"The purpose of this article is to review the emerging research on entrepreneurial ecosystem and to guide future research into this promising area. The study presents a critical review on the entrepreneurial ecosystem, starting from its very definition and antecedents. Combining prior research with building on the main concepts that constitute an entrepreneurial ecosystem, we have developed an original set of guidelines that can help scholars and practitioners seeking an answer to the following pressing question: “How can we gain a comprehensive understanding of an entrepreneurial ecosystem?”. We will then discuss the opportunities for expanding our current knowledge on entrepreneurial ecosystems and describe the current debates and directions for future research. Lastly, we will provide guidelines that policymakers may take into consideration when designing and issuing support measures to promote entrepreneurship in their local ecosystems."