The 2nd International Conference on Bigdata Blockchain and Economy Management (ICBBEM 2023) was successfully held on 19-21 May 2023 in Hangzhou, China. The conference aims to present the latest research results in the areas related to Big Data, Blockchain and Economic Management, and provide an opportunity for experts and scholars from various fields to meet face-to-face, exchange new ideas and practical experiences, establish business or research relationships, and seek future international cooperation. This volume contains a collection of excellent papers from the conference, presented on topics such as computer software and computer applications, blockchain in data management, e-commerce and digital commerce, and linear regression analysis. We hope that these papers will serve as a reference for young scholars in their future research.

This is an open access book. As a leading role in the global megatrend of scientific innovation, China has been creating a more and more open environment for scientific innovation, increasing the depth and breadth of academic cooperation, and building a community of innovation that benefits all. These endeavors have made new contribution to globalization and creating a community of shared future. With the rapid development of modern economic society, in the process of economic management, informatization has become the mainstream of economic development in the future. At the same time, with the emergence of advanced management technologies such as blockchain technology and big data technology, real market information can be quickly obtained in the process of economic management, which greatly reduces the operating costs of the market economy and effectively enhances the management level of operators, thus contributing to the sustained, rapid and healthy development of the market economy. Under the new situation, the innovative application of economic management research is of great practical significance. 2022 International Conference on Bigdata, Blockchain and Economic Management (ICBBEM 2022) will be held on March 25–27, 2022 in Wuhan, China. ICBBEM 2022 will focus on the latest fields of Bigdata, Blockchain and Economic Management to provide an international platform for experts, professors, scholars and engineers from universities, scientific institutes, enterprises and government-affiliated institutions at home and abroad to share experiences, to expand professional fields, to exchange new ideas face to face, to present research results, and to discuss the key challenging issues and research directions facing the development of this field, with a view to promoting the development and application of theories and technologies in universities and enterprises.

We proudly present the proceedings of 2nd International Conference on Law, Economic and Governance 2021 (ICOLEG 2021). It focuses on how the wave of digitalization influences the ethics and law, especially in Law and Democracy, Law and Indigenous People, Law in Contemporary Issues, Law and Economics, Digital Economics, Good Governance etc. As we know, the world today is changing and the world we are facing now is the one where everything is connected. The contemporary social issues based on complex problems, complex interest, beyond borders and powers. More than 125 manuscripts from various countries were presented at this conference with around 66 of them selected to be published in proceedings. We hope by this conference, discussions on how research on Law, Economic and Government is possible in a disruptive era will give a perspective for the social and humanities studies development.

Information Science and Communications Technologies ICISCT 2020 invites high quality recent research results in the areas of Home and Health networking, Electronic commerce, Mobility and Mobile Payment, Broadband access, satellite services, 5G in rural communications, cloud computing, Smart grids, Big data analysis, Cyber security, Internet of Things IOT, Mobile and Wireless Communications, optical communications and networking, architectures, protocols, planning and design, management and operation, simulation and performance modeling ICISCT2020 conference is the application of the next generation of information and communications technologies on Education, Finance and Economy,Information Science and comm techISCT in Disaster Recovery and Management in Rural Areas ISCT in Health Service Development and Management ISCT in Cloud Computing ISCT in Cyber Security ISCT in Business, Finance and Economy ISCT in Governance and Government Policy ISCT in Education, Humanities, Social Sciences