Navigating platform challneges:Three studies on blockchain-based platform competition, platform subsidies for non-fungible token creation, and ghosting in the dating market

The advent of technology and the internet has ushered in new business paradigms, notably online platforms designed to connect users or provide access to desired products or services. The success of these platforms depends significantly on their owners' readiness and willingness to adapt strategic decisions, enhancing their market position. Despite extensive research, new challenges continuously arise, either from rapid technological advancements or from evolving insights into the user journey. This dissertation investigates such challenges through three focused studies: (1) The impact of new, technology-driven platforms on the offerings of established platforms; (2) The complex effects of scaling the supply side via financial incentives; (3) The role of antighosting features in improving matchmaking. These studies contribute to our understanding of emerging platform challenges and response strategies. In the fast-evolving ecosystem of online platforms, operators often recognize the implications of these challenges post-occurrence, struggling to address them with potentially ineffective policies. Thus, the insights provided in this dissertation are timely and valuable for managers and researchers in this area

Navigating platform challneges:Three studies on blockchain-based platform competition, platform subsidies for non-fungible token creation, and ghosting in the dating market

The advent of technology and the internet has ushered in new business paradigms, notably online platforms designed to connect users or provide access to desired products or services. The success of these platforms depends significantly on their owners' readiness and willingness to adapt strategic decisions, enhancing their market position. Despite extensive research, new challenges continuously arise, either from rapid technological advancements or from evolving insights into the user journey. This dissertation investigates such challenges through three focused studies: (1) The impact of new, technology-driven platforms on the offerings of established platforms; (2) The complex effects of scaling the supply side via financial incentives; (3) The role of antighosting features in improving matchmaking. These studies contribute to our understanding of emerging platform challenges and response strategies. In the fast-evolving ecosystem of online platforms, operators often recognize the implications of these challenges post-occurrence, struggling to address them with potentially ineffective policies. Thus, the insights provided in this dissertation are timely and valuable for managers and researchers in this area

Υδροδυναμική συμπεριφορά γάστρας τ. Π.Α.Θ σε ήρεμο νερό και κυματισμούς

Εθνικό Μετσόβιο Πολυτεχνείο--Μεταπτυχιακή Εργασία. Διεπιστημονικό-Διατμηματικό Πρόγραμμα Μεταπτυχιακών Σπουδών (Δ.Π.Μ.Σ.) “Ναυτική και Θαλάσσια Τεχνολογία και Επιστήμη

Bounding the inefficiency of compromise

Social networks on the Internet have seen an enormous growth recently and play a crucial role in different aspects of today's life. They have facilitated information dissemination in ways that have been beneficial for their users but they are often used strategically in order to spread information that only serves the objectives of particular users. These properties have inspired a revision of classical opinion formation models from sociology using game-theoretic notions and tools. We follow the same modeling approach, focusing on scenarios where the opinion expressed by each user is a compromise between her internal belief and the opinions of a small number of neighbors among her social acquaintances. We formulate simple games that capture this behavior and quantify the inefficiency of equilibria using the well-known notion of the price of anarchy. Our results indicate that compromise comes at a cost that strongly depends on the neighborhood size

Fractals in Geoscience and Remote Sensing

Abstract not availableNA-NOT AVAILABL

How Free Market Entry Affects Creation and Engagement: Evidence from Non-Fungible Tokens

Content creation costs pose a threat for online marketplaces aiming to attract new users. In response, platform managers devise new policies to subsidize these costs for content creators. In this study, we analyze data from a leading NFT marketplace to examine the impact of a lazy minting policy, which enables content creation without upfront fees, on created content, and engagement with that content. On the creation side, we observe a volume-effort trade-off, with creators producing more work for the market but exerting less effort during creation. On the engagement side, we note a decrease in engagement, particularly affecting creators with higher engagement levels prior to the policy change. We explore the mechanism driving this reduction and find that effort and attention play crucial roles, while a larger follower count does not shield creators from decreased engagement. Finally, we discuss our contributions to the literature and its implications for platform managers

Correlation between epithelial thickness in normal corneas, untreated ectatic corneas, and ectatic corneas previously treated with CXL; is overall epithelial thickness a very early ectasia prognostic factor?

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SOAP Primer for INSPIRE Discovery and View Services

This document demonstrates the use of the proposed INSPIRE SOAP Framework for the INSPIRE Discovery and View services. This document focuses on the analysis of the WSDL itself (for both the Discovery and View services), explaining its parts and characteristics, as well as on the analysis of SOAP request and response messages, including headers and potential attachments. Moreover, the primer is providing also examples of user scenarios, with specific code samples.JRC.H.6-Spatial data infrastructure