Scarlett Sieber, Ian Fong, Tina Lončarić, Dhanum Nursigadoo · 6 authors
Before we get started properly, we thought it best to define the intersection for you. It’s a term we started using back in early 2025 to define the convergence of DeFi and TradFi we were seeing across the space. It was fully activated at Money20/20’s conferences across the world, but in reality, it’s so much more. The intersection is the space where two realities come together to create something better. For this book, it’s where traditional finance (TradFi) and decentralized finance (DeFi) come together to deliver truly digital financial services, changing what it means for money to do business.
As in its early development, metaverse has become a popular marketing topic with broad participation among marketers and consumers. Due to the global pandemic and lockdowns that hit offline marketing channels, people seek online and virtual interactions (Taherdoost, 2022). It accelerated the changes in consumers' habits and participation in digital media. The term metaverse was first introduced in 1992 in a Sci-Fi Snow Crash (Stephenson, 1992), describing a space where users can join as avatars through terminals with virtual reality features (The Economist, 2020). And with the development of web3, the metaverse has evolved into a hyper-connected online universe. Kim (2021) defines the metaverse as the network of virtual environments where individuals can communicate and interact with one another and objects in real-time using their digital representation or avatars. Brands lead and help consumers to find ways to enter the metaverse space, accelerating mainstream adoption. Philipp Plein, a Swiss fashion brand, purchased 65 parcels of land with 1.4 million dollars in the metaverse platform Decentraland with about 800,000 registered users (Hiken, 2022).
Ke Huang, Yi Mu, Fatemeh Rezaeibagha, Xiaosong Zhang
This chapter summarizes all enumerated works to derive some empirical knowledge and generalizes some open problems as future challenges. This chapter concludes as follows: (1). The practical design and analysis of cryptographic schemes for blockchain can address significant problems in blockchain at the algorithmic level. This type of research has received popularity from both global cryptographic community and blockchain developer&s;s community. This research field is the most fast-developing region of all research areas. (2). The intrinsic deficiencies in some traditional cryptographic primitives, like ring signature, IND-CCA2 secure encryption, zero knowledge, etc, prevent the successful application of these primitives in the blockchain. However, tremendous efforts are being made to make these primitives practical and applicable by researchers. Hopefully, we can derive efficient and practically-secure zk-SNARKs or public key schemes as building blocks or overlays for blockchain in the near future.} (3) The formal and rigorous design and analysis of public key cryptographic algorithms matters to the researches and development of blockchain. In cryptographic academia, it is generally recommended to design and analyze cryptographic schemes strictly by practising provable security theory, complexity theory, and proof techniques to validate proposed schemes.
This chapter shows what happens when the severe restrictions on the range of projects to be appraised are relaxed. It considers the case for large projects, public goods projects or projects with relevant environmental effects as well as for investments financed out of fixed expenditure allocations. Since all these departures from manuals involve a different view of the relation between project and plans, the chapter addresses the links between appraisals and economic planning or between shadow prices and decentralized prices. The range of projects whose appraisal is considered by the manuals of the 1970s is limited by a simplified version of the planning procedures. The departures from the Little and Mirrlees, UNIDO, Mishan, and Squire and Van der Tak manuals seem to correspond to the desire to avoid this neglect of relevant areas of public intervention. The large project, public goods, non-optimal financing and private investments appraisal issues show the objective complications of such departures from the current guidelines.
The idea of the theory of Community Co-management was originally based on research of the fishing and pearl culturing villages of Shima district in Mie Prefecture during the 1960s. At that time, the landed quantity of cultured pearls in the district increased rapidly because of growth in number of culture establishments and an increase in density of their culturing oyster shells. However, the increase of pearl production in a limited marine area resulted in the rapid deterioration of both quality and price of cultured pearls. At around the same time, sightseeing facilities attracted attention in the district, and environmental burdens imposed by them have become heavy. Then, to realize compatible and sustainable relations with each other for the efficient use of local resources, the establishment of a new community organization composed of fishermen, pearl culture establishments, sightseeing facilities, and inhabitants as comsumers of marine products became indispensable. The management of local resources, by all interested parties, became the core function of the community. For this reason, a community can be seen as an organization for the co-management of living conditions. Modern society has increased its collective consumption, and has grown in community co-management of its living conditions. This means that a community can be seen from the view point of managerial functions. There can be an understanding of the common features and structures of rural and urban communities as well as of neighborhood communities and municipal authorities despite ecological and legislative differences. At present, the development of the decentralization of administrative systems in our country permits the official establishment of a kind of teritorrial autonomous body within a local autonomy. The concept of community co-management has become increasingly realistic.