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作者：Capponi, Agostino; Olafsson, Sveinn; Alsabah, Humoud
作者单位：Columbia University; Stevens Institute of Technology; Kuwait University
摘要：Does the proof-of-work consensus protocol serve its intended purpose of supporting decentralized cryptocurrency mining? To address this question, we develop a game-theoretical model in which miners first invest in hardware to improve the efficiency of their operations and then compete for mining rewards in a rent-seeking game. We show that centralization grows with heterogeneity in mining costs, but hardware capacity constraints prevent the most efficient miners from monopolizing the mining pr...
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作者：Park, Sungsik; Shin, Woochoel; Xie, Jinhong
作者单位：University of South Carolina System; University of South Carolina Columbia; State University System of Florida; University of Florida
摘要：The well-documented rating inflation of incentivized reviews (IRs) can mislead consumers into choosing a product that they would otherwise not buy. To protect consumers from this undesirable influence, the U.S. Federal Trade Commission recommends that reviewers conspicuously disclose any material connection they may have with sellers. In theory, such disclosures safeguard consumers by motivating reviewers to be truthful and inducing consumers to discount inflated IR ratings. Our research finds...
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作者：Davydiuk, Tetiana; Gupta, Deeksha; Rosen, Samuel
作者单位：Carnegie Mellon University; Johns Hopkins University; Pennsylvania Commonwealth System of Higher Education (PCSHE); Temple University
摘要：Using the market for initial coin offerings (ICOs) as a laboratory, we provide evidence that entrepreneurs use retention to alleviate information asymmetry. The underlying technology and the absence of regulation make the ICO market well suited to study this question empirically. Using a hand-collected data set, we show that ICO issuers that retain a larger fraction of their tokens are more successful in their funding efforts and are more likely to develop a working product. Moreover, we find ...
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作者：Shakhnov, Kirill; Zaccaria, Luana
作者单位：University of Surrey
摘要：We examine digital product markets in which consumers are heterogeneous in their propensity to actively interact with other users and valuations increase with the share of active users (e.g., social network platforms). We propose a model in which entrepreneurs can issue digital claims (tokens) to promise exclusive access to benefits that specifically enhance the utility of active users. This allows entrepreneurs to extract consumer surplus through price discrimination. Because there is an ince...
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作者：Kokkodis, Marios; Ipeirotis, Panagiotis G.
作者单位：New York University
摘要：Choosing job applicants to hire in online labor markets is hard. To identify the best applicant at hand, employers need to assess a heterogeneous population. Recommender systems can provide targeted job-applicant recommendations that help employers make better-informed and faster hiring choices. However, existing recommenders that rely on multiple user evaluations per recommended item (e.g., collaborative filtering) experience structural limitations in recommending job applicants: Because each...
