Web information tracking using ontologies

Bringing knowledge management to practice one typically has to focus on concrete problems that exist in the daily work of the knowledge worker. We consider the task of tracking relevant information on the Web as important and time consuming, and thus as a concrete problem. In this paper we introduce an integrated approach for Web information tracking using ontologies. The overall approach has been implemented within a case study carried out at DaimlerChrysler AG. Copyright © 2004 John Wiley & Sons, Ltd.     

Triple‐entry accounting with blockchain: How far have we come?

Although double‐entry accounting has been used for more than 600 years, today’s era of disruptive technological change utilising blockchain and FinTech has led to the emergence of another promising accounting method: triple‐entry accounting. This paper explores triple‐entry accounting, from its conception to the current state of play, using three case studies. We find that: (i) in a blockchain ecosystem, for some accounts, business entities will only need to perform a single entry internally and the opposite entry will be recorded in a public shared ledger; and (ii) triple‐entry accounting is a new and a more efficient way to address fundamental trust and transparency issues that plague current accounting systems. Triple‐entry accounting with blockchain, when properly implemented, can fundamentally improve accounting.     

“The first mile problem”: Deriving an endogenous demand for auditing in blockchain-based business processes

In this paper, we model the business process within which blockchain applications operate in order to extract an endogenous demand for auditing in that environment. We begin by undertaking a case study of the pharmaceutical drug industry supply chain, exploring both the proposed blockchain initiatives in it initiated by the FDA and startup companies, and the problems in the supply chain that blockchain cannot address. Drawing on this analysis, we derive an endogenous demand for auditing to overcome what we label the “first mile problem” (FMP) with blockchains: ensuring that the data stored on the blockchain distributed ledger is isomorphic with the real life data that it purports to represent. The first mile problem arises only when the blockchain is used to store data about physical items, especially ones involving a service component, rather than being native digital, as is the case with the genesis blockchain application, bitcoin. We show that unless it is feasible to store a “digital twin” of the item (Roberts, 2017), there is a role for auditors, with the training in professional skepticism, to help alleviate the first mile problem. There is no guarantee, however, that this new demand for auditing will be met by the traditional financial statement auditors.     

区块链技术助力新能源供应链金融发展研究

传统新能源供应链中存在信息交互及时性、真实性难以保障,优质核心企业缺 乏,风险控制不足等问题,具有去中心化、可溯源、信息不可篡改、智能合约等特点的区块链 技术为供应链金融创新发展提供了有利条件。在解析新能源供应链金融存在的问题基础上,分 析区块链技术在新能源供应链金融中应用的优势,提出将融资租赁公司融入新能源供应链作 为核心企业,构建基于区块链的新能源供应链金融新模式,并对可能存在的风险进行了分析。     

The Role of Durables Replacement and Second‐Hand Markets in a Business‐Cycle Model

Transactions of used durables are large and cyclical, but their interaction with purchases of new durables has been neglected in business‐cycle studies. I fill this gap by introducing a new business‐cycle model of consumer durables where households resell their goods on the second‐hand market and the production of new durables is affected by the supply of used goods. The model delivers three conclusions: Markups are smaller for goods that are more durable and more frequently replaced; markups are countercyclical for durables, resolving the comovement puzzle of Barsky, House, and Kimball (2007); and procyclical replacement demand amplifies durables spending.     

Configuring blockchain architectures for transaction information in blockchain consortiums: The case of accounting and supply chain systems

This paper investigates alternative configurations of different blockchain architectures that can be used for gathering and processing transactions in a range of different settings, including accounting, auditing, supply chain and other types of transaction information. Although there has been substantial focus on the peer‐to‐peer and public versions of blockchain, this paper focuses primarily on cloud‐based and private configuration versions of blockchains and investigates use configurations, advantages and limitations as firms bring blockchain‐based market mechanisms into their organizations. In addition, this paper investigates some emerging issues associated with blockchain use in consortium settings. Finally, this paper relates some proposed uses of blockchain for transaction processing to other technologies, such as data warehouses and databases.     

Understanding Post‐Euro Law‐of‐One‐Price Deviations

We put together a unique panel of thousands of good‐level prices before and after the euro to compare the determinants and understand the evolution of goods price dispersion across Europe over time. We find that tradeability and nontraded inputs play a significantly smaller role for cross‐country price dispersion after the adoption of the euro, and for Eurozone economies as compared to European Union ones. We then compare the distributions of law‐of‐one‐price (LOP) deviations over time to understand how the degree of integration across European economies changed after the euro. Our tests reveal that the distributions after the euro are typically significantly different from those before, consistent with a greater degree of integration. Utilizing our unique panel data set to trace the location of individual goods in the distribution of LOP deviations, we ask how the price advantage or disadvantage evident in these price distributions evolves over time, and whether goods characteristics play a role for the persistence of these LOP deviations. LOP deviations for these goods are highly correlated over 5‐ or 10‐ year horizons, and correlations remain significantly high over longer horizons. These correlations are greater for homogeneous as compared to differentiated goods and vary across countries. Finally, for most of these European economies and goods, price advantage is typically revealed to be more persistent than price disadvantage.     

Agent‐based supply chain disintermediation versus re‐intermediation: economic and technological perspectives

One important stream of information systems research addresses the role and future of supply chain and market intermediaries. But whereas many researchers hypothesize a trend toward disintermediation—principally enabled by information technology (IT)—others proffer theoretical arguments for IT‐enabled re‐intermediation. With regard to IT, it is particularly unclear whether the emerging technology associated with software agents is better suited to enable supply chain disintermediation or re‐intermediation. And if agent technology is better suited to either disintermediate or re‐intermediate supply chain activities, can we say this is always the case? Or will certain contingency factors intervene in various circumstances to suggest agent‐based disintermediation over re‐intermediation in some cases and vice versa in others? The research described in this paper takes some first steps toward addressing these questions. We first draw from the intermediation economics literature to summarize some of the key works and arguments for and against IT‐based dis/re‐intermediation, and we use this discussion to outline a preliminary set of conditions favoring agent application in such roles along the supply chain. We then draw from the agent technology literature to summarize key capabilities associated with extant agent technologies, and we compare such emerging IT with more conventional information systems and applications. Guided by this background of intermediation theory and extant agent capability, we describe a proof‐of‐concept multi‐agent system called ‘the Intelligent Mall’ in the context of supply chain dis/re‐intermediation. We use this implemented multi‐agent system to show how it reflects current agent technology, and we identify the contingent economic conditions that can be satisfied through this implemented system. The paper then closes, as we identify a several new lines of research stemming from this investigation. © 2000 John Wiley & Sons, Ltd.     

Blockchain and other distributed ledger technologies: Where is the accounting?

In a recent survey of academic research, Fintech related topics, broadly classified as crypto-currency studies, were by far the most researched topics in the social sciences. However, we have observed that, perhaps surprisingly, even though crypto-currencies rely on a distributed accounting ledger technology, relatively few of those studies were conducted by accounting academics. While some of the features of a system like Bitcoin do not necessarily rely on a traditional accounting knowledge, this knowledge is key in designing effective real-world distributed systems. Building on a foundational framework developed by Risius and Spohrer (2017), we provide support for their hypothesis that to date, research in this area has been predominantly of a somewhat narrow focus (i.e., based upon exploiting existing programming solutions without adequately considering the fundamental needs of users). This is particularly reflected by the abundance of Bitcoin-like crypto-currency code-bases with little or no place for business applications. We suggest that this may severely limit an appreciation of the relevance and applicability of decentralized systems, and how they may support value creation and improved governance. We provide supporting arguments for this statement by considering four applied classes of problems where a blockchain/distributed ledger can add value without requiring a crypto-currency to be an integral part of the functioning system. We note that each class of problem has been viewed previously as part of accounting issues within the legacy centralized ledger systems paradigm. We show how accounting knowledge is still relevant in the shift from centralized to decentralized ledger systems. We advance the debate on the development of (crypto-currency free) value-creating distributed ledger systems by showing that applying accounting knowledge in this area has potentially a much wider impact than that currently being applied in areas limited to auditing and operations management. We develop a typology for general distributed ledger design which assists potential users to understand the wide range of choices when developing such systems.     

Self‐Insurance and Self‐Protection as Public Goods

Many public goods provide utility by insuring against hazardous events. Those public goods can have self‐insurance and self‐protection character. For both situations we analyze the efficient public provision level and the provision level resulting from Nash behavior in a private provision game. We consider the interaction of public goods as insurance devices with market insurance. The availability of market insurance reduces the provision level of the public good for both public and private provision, regardless of whether we consider self‐insurance or self‐protection. Moreover, we show that Nash behavior has always a larger impact than the availability of market insurance.     

Blockchain architecture: A design that helps CPA firms leverage the technology

Blockchain technology has garnered the interest of the accounting profession in recent years. However, when considering whether to adopt this technology, many business professionals have voiced a lack of a compelling use case as a major challenge. To utilize the technology effectively, first, we need to establish how organizations will connect to the blockchain that will also provide a compelling use-case for CPA firms. In this paper, we design a blockchain architecture for organizations that will facilitate effective connectivity to a blockchain while enabling auditors to leverage this technology to provide audit and assurance services. To design the architecture, we consider two broad questions: first, how do CPA firms gain access to reliable audit evidence and, second, how can client firms maintain confidentiality and security of their data given a decentralized and distributed immutable ledger (i.e., a blockchain). Consequently, the proposed architecture will help auditors gain access to reliable digital audit evidence while incentivizing client firms to adopt blockchain technology by substantially reducing the costs of replacing existing information systems. Given this architecture, auditors could also design continuous audit procedures for their respective clients without having to incur substantial investments in software integration. Further, the architecture can be expanded to include various use cases and supply chain participants, other CPA firms, customers, and regulators.     

Zero‐Rating versus Cash Transfers under the VAT

To reduce the tax burden on the poor, nearly every VAT system allows for special treatment of certain goods or services. Zero‐rating the supply of certain foodstuffs is a prominent example of this practice. Using data on South Africa, this paper considers whether taxing foodstuffs alongside compensating cash transfers may be preferred to zero‐rating foodstuffs in a developing country context. The results show that cash transfers may be preferred if all the additional revenue from eliminating the zero rate can be earmarked and government is perfectly efficient. In the likely absence of earmarking and perfect efficiency, developing countries may need to apply special treatment to some foodstuffs to protect the poor. If this is the case, it is proposed that zero‐rating can be preferred to the exemption of certain foodstuffs.     

Open Information Enterprise Transactions: Business Intelligence and Wash and Spoof Transactions in Blockchain and Social Commerce

This paper investigates what are referred to as ‘open information transactions’. Such transactions are in contrast to traditional transactions, where typically two parties to a transaction are the only ones with information about the transaction. For example, in a sale, the seller and the purchaser typically are the only ones with information about the transaction. However, some emerging technologies, such as blockchain accounting, supply chain social media, and hashtag commerce are making information about the transactions potentially openly available to others. This paper investigates some of the implications and strategies that include the use of that open information. For example, open information in accounting and supply chain transactions provides the potential for both business intelligence analysis of the information and possibly misleading and illusory transactions, analogous to those that have garnered the recent attention of the Justice Department in cryptocurrencies. Finally, this paper suggests that blockchain transaction processing will provide reliable information in those settings where there is a “single truth” feed of information flow for the phenomena of interest, no ability to do off‐blockchain transactions (or a large penalty cost) and limitation to a single identity for each enterprise on the blockchain.     

Tokenization of sukuk: Ethereum case study

Sukuk is a financial instrument that provides returns similar to conventional bonds. It has served to cater to the capital requirements of big corporations and governments, while circumventing interest to adhere to the Shariah law. Sukuk can be touted as Shariah-compliant bonds that rank among the most successful and the fastest growing financial instrument in the Islamic economy. The sukuk research area is marked by a dearth of quantitative literature, compared to qualitative academic work. This paper seeks to fill this existing gap, and introduces a novel, exploratory analysis of sukuk tokenization based on a case study. The funding needs of small and medium enterprises remains largely unmet through sukuk on account of the high costs involved, among other reasons. As we show in this paper, blockchains can aid to lower the cost incurred through the tokenization of sukuk. We highlight some of the key challenges involved in the issuance of sukuk and discuss their resolution using blockchain. We also provide a taxonomy of blockchain applications in finance, with a particular focus on Islamic finance. Our paper reviews different blockchain architectures to assess their viability for tokenization. We conduct a novel case study on sukuk tokenization by implementing a basic smart contract for Sukuk al-Murabaha on Ethereum. The paper concludes by a conceptual analysis of feasibility concerns, based on a comparison of the conducted cost-benefit analysis of conventional sukuk issuance with tokenization.     

Some issues in blockchain for accounting and the supply chain,with an application of distributed databases to virtual organizations

This paper reviews some recent blockchain‐based applications for information capture, distribution and preservation. As part of that review, this paper examines two key concerns with current blockchain designs for accounting and supply chain transactions: data independence and multiple semantic models for the same information distribution problem. Blockchain applications typically integrate database, application and presentation tiers all in the same ledger. This results in a general inability to query information in the ledger and other concerns. Further, since most applications appear to be private blockchain applications, there is a concern of agents needing to accommodate multiple blockchains depending on who their trading partners are and what they request. Finally, this paper uses a distributed database to design a ‘blockchain‐like’ system for virtual organizations.     

Disentangling Managers’ and Analysts’ Non‐GAAP Reporting

Researchers frequently proxy for managers’ non‐GAAP disclosures using performance metrics available through analyst forecast data providers (FDPs), such as I/B/E/S. The extent to which FDP‐provided earnings are a valid proxy for managers’ non‐GAAP reporting, however, has been debated extensively. We explore this important question by creating the first large‐sample data set of managers’ non‐GAAP earnings disclosures, which we directly compare to I/B/E/S data. Although we find a substantial overlap between the two data sets, we also find that they differ in systematic ways because I/B/E/S (1) excludes managers’ lower quality non‐GAAP numbers and (2) sometimes provides higher quality non‐GAAP measures that managers do not explicitly disclose. Our results indicate that using I/B/E/S to identify managers’ non‐GAAP disclosures significantly underestimates the aggressiveness of their reporting choices. We encourage researchers interested in managers’ non‐GAAP reporting to use our newly available data set of manager‐disclosed non‐GAAP metrics because it more accurately captures managers’ reporting choices.     

WHY ISSUE TRACKING STOCK? INSIGHTS FROM A COMPARISON WITH SPIN‐OFFS AND CARVE‐OUTS

In recent years, tracking stocks, which amount to a new form of corporate restructuring, have been gaining in popularity. In 1999 alone, 17 companies announced new tracking stock issues, and by February 2000 there were 40 tracking stocks trading in the U.S. equity markets. Why have tracking stocks become so popular in recent years? In this article, the authors present new evidence on the effectiveness of tracking stock issues in creating shareholder value as compared to the record of two other closely related forms of corporate restructuring—spin‐offs and equity carve‐outs. The authors find that the parents and subsidiaries of tracking‐stock firms are more “related” than those that undertake the other two forms of corporate restructuring, that there is a positive announcement effect (similar in size to that of spin‐offs but greater than that of equity carve‐outs) on stock prices, and that the number of analysts following the firm increases following the issuance of tracking stock. These findings are interpreted as suggesting that the main corporate motives for issuing tracking stock are the valuation benefits from providing investors with more information about the newly listed subsidiary, while at the same time preserving the existing synergies between the business units involved. This maintenance of existing synergies, however, appears to have come at a significant price. Under the tracking stock structure, there seem to be no benefits attributable, as in the case of spin‐offs, to improvements in corporate governance. While spinoffs significantly increase the probability that the parents or subsidiaries will later be taken over (with its disciplining effect on management), there is no such increase in takeover probability for firms issuing tracking stock. Consistent with this difference, the authors find that the market‐adjusted two‐year holding period return for tracking stock parents and subsidiaries is significantly lower than the corresponding return for spinoffs and their corporate parents.     

农村公共产品供给与农民收入问题研究

阻碍农民增收和农村经济发展的根本原因在于改革开放以来农村公共产品供给不足,表现为农村公共产品供给与需求失衡;同时,政府将有限的财力和公共产品的大部分投向城市,形成了公共产品供给的城市化倾向,这又表现为城乡公共产品供给失衡.农村公共产品的长期短缺严重地影响了农村私人产品的产出效率.因此,作者提出了必须关注农村农民对公共产品的需求;建立起完善的农村公共产品体系等重要观点.     

区块链十周年:发展现状、趋势与监管政策研究

本文对区块链发展十周年以来的基本事实进行了回顾,并梳理了近三年来国际主 要学术数据库中收录的区块链市场应用学术研究进展。同时,就区块链与计算力的关系和区块 链将面临的问题进行了分析,提出了去中心化要面对的三元悖论。最后,我们对加强区块链的 监管提出了政策建议。     

Price discovery and microstructure in ether spot and derivative markets

Ethereum is an important blockchain, being the first and most popular public platform for the smart contracts underpinning financial transactions, time-stamping of supply chains, decentralized applications and initial coin offerings. Ethereum's cryptocurrency, ether, is actively traded on centralized exchanges, second only to bitcoin. It has attracted investor's interest primarily because of its intrinsic value – small units of ether called ‘gas’ are used, essentially, as the fuel driving smart contract transactions on the Ethereum blockchain. We ask whether off-chain trading on ether derivatives plays a dominant role in ether spot price discovery, thereby driving ether's utility value for on-chain activity. Using minute-by-minute data we find that the ether perpetual swap on BitMEX, an unregulated cryptocurrency derivative exchange, has dominant trading volume and price discovery over the major spot exchanges. Furthermore, we identify interesting hour-of-day and day-of-week effects in trading volume on the spot exchanges, and these indicate that more informed institutional players are trading ether spot and derivatives.