Clarifying the research status, hotspots, and evolution trend of the field of research on decision-making in marine management has certain reference significance for the scholars and decision makers in the field of decision-making in marine management at the theoretical and practical levels. In view of this, this study used 443 pieces of literature retrieved from the Web of Science from 2002 to 2021 as the data source. It adopted the methods of statistical analysis and bibliometric analysis to conduct knowledge mapping visualization analysis in the field of research on decision-making in marine management. The results show that ①there is a high correlation between the level of economic development among countries/regions and the number of publications, and the geographical distribution is closely related to the intensity of research cooperation; ②the research organizations show the characteristics of the diversified distribution. Moreover, although there is no noticeable difference in scientific research output among research organizations, influential research organizations such as NOAA, The Nature Conservancy, and so forth have emerged; ③the author groups as a whole do not show a high cooperation intensity, but there are also scholars with high cooperation intensity within the internal group and other research groups; ④the research hotspots distribution in the field of decision-making in marine management is relatively extensive and belongs to a multidimensional and multiperspective systematic research. Furthermore, the research focuses on subdivision research hotspots mainly involving ecosystem services, knowledge exchange, decision analysis, multicriteria decision, decision support, fisheries management, specific mathematical models and theories, etc; ⑤from the perspective of the evolution trend, it can also be found that different clusters show the evolution trend of overlapping common features and individual features.
As an emerging technology enabling economic, social, and environmental sustainability, blockchain has drawn considerable attention from the academic community in management and economics. It is essential to clarify this field’s research status, hotspots, and evolution trends. This study took 642 pieces of literature on blockchain in management and economics from the Web of Science (WoS) as data sources. It combined the bibliometric knowledge mapping visualization and statistical analysis methods to conduct a systematic analysis. It is found that the United States and China are the primary core strengths, and highly influential research organizations and authors have emerged in this field. The research of blockchain in management and economics has the property of being interdisciplinary. Research hotspots are mainly distributed in the combination and application of blockchain technology and emerging technologies and the research on blockchain in supply chain management (SCM), supply chain finance, intellectual property, digital currency, and transaction costs. The evolution trends of research hotspots show a rule of overlapping commonness and individuality. This study systematically revealed the overall research development situation on blockchain in management and economics to provide some reference and inspiration for relevant researchers.
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