1,721,037 research outputs found

    A general equilibrium analysis of check float

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    Households and businesses in the United States prefer to use check payment over less costly, electronic means of payment. Earlier studies have focused on check "float," that is, the time lag between receipt and clearing, as a potential explanation for the continued popularity of checks. An underlying assumption of these studies is that check float operates as a pure transfer from payee to payor. We construct a simple general equilibrium model in which payments are made by check. In general equilibrium, check float does not act as a pure transfer. If float can be priced into market transactions, then it has no effect on equilibrium allocations. If float is not priced into market transactions, then it acts as a distorting tax. Our results are consistent with the view that float is a significant factor behind the continued popularity of check payment. Our results are also consistent with recent data that indicate that the average value of float (per check) is small.Checks ; Financial services industry ; Payment systems

    Settlement risk under gross and net settlement

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    Previous comparative analyses of gross and net settlement have focused on the credit risk of the central counterparty in net settlement arrangements and on the incentives for participants to alter the risk of the portfolio under net settlement. By modeling the trading economy that generates the demand for payment services, we are able to show some largely unexplored advantages of net settlement. We find that net settlement can prevent certain gridlock situations, which may arise in gross settlement in the absence of delivery versus payment requirements. In addition, we show that net settlement can economize on collateral requirements and avoid trading delays.Payment systems ; Risk

    How Amsterdam got fiat money

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    We investigate a fiat money system introduced by the Bank of Amsterdam in 1683. Using data from the Amsterdam Municipal Archives, we partially reconstruct changes in the bank's balance sheet from 1666 through 1702. Our calculations show that the Bank of Amsterdam, founded in 1609, was engaged in two archetypal central bank activities—lending and open market operations—both before and after its adoption of a fiat standard. After 1683, the bank was able to conduct more regular and aggressive policy interventions, from a virtually nonexistent capital base. The bank's successful experimentation with a fiat standard foreshadows later developments in the history of central banking.

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis

    The impact of fraud on new methods of retail payment

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    Currency fraud (counterfeiting), check fraud, and credit card fraud are serious problems, costing the U.S. economy billions of dollars each year. But with each of these traditional payments methods, the problem of fraud has been kept at a manageable level. To be successful in the marketplace, newer forms of payment such as electronic cash and stored-value cards will need to hold fraud risk to similarly low levels. ; Will fraud hinder development of the new payments media? The natural advantages of electronic systems for storing, copying, and manipulating data can be a drawback when it comes to the risk of fraud. This article considers how certain features of new forms of payment differ from more traditional forms and whether these features will detract from marketplace acceptance of the new media. The author concludes that successful payments systems will have to confront various trade-offs posed by the risk of fraud. They will need to balance the costs and benefits of fraud abatement, balance security of payments systems with consumers' desire for privacy, and encourage development of new, more efficient payments systems while ensuring equitable treatment of participants.Checks ; Money ; Payment systems

    Dispelling the Myths Behind First-author Citation Counts

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    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods

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