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Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
Do individuals have consistent risk preferences across domains? Evidence from the Japanese insurance market
No full textThe risk attitude plays an important role in analyzing decision making under uncertainty. It is essential to confirm whether the risk aversion parameter in a certain situation, called "domain," can be applied to other situations. Using a dataset on hospitalization insurance policies in Japan, this study tests whether individuals' risk preferences remain consistent across domains. Based on the assumption of expected utility maximizer, we derive a plausible distribution of the degree of risk aversion. We find that degree of risk aversion is consistent between hospitalization benefits and additional insurance for specific diseases. Contrarily, the degree of risk aversion from hospitalization benefits has a negative relationship with that based on a survey question on the self-assessment of general preferences. This result indicates that the imputation of risk aversion from the literature would distort research results markedly if characteristics of the domains targeted by both previous research and this study differ
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Refining Real Consumption: Accounting for In-Kind Transfers, Imputed Rents, and Preference Heterogeneities
Full text linkOver the past decade, expanded government in-kind transfers such as healthcare and education have influenced household welfare in many countries. To capture their effects on consumption inequalities, this study introduces an acquisition-based consumption measure that includes in-kind transfers and imputed rents, deflated using a superlative index. Using Japanese data from 2005 to 2021, we find that while conventional measures indicate an 11.2 percent decline in consumption among younger households, our index shows a 6.3 percent increase. Of the resulting 17.5 percentage-point gap, 10.7 points come from the deflator choice, while the rest arises from including in-kind transfers and imputed rents.
JEL Codes: C43, D12, D63, E01, E21
Refining Real Consumption : Accounting for In-Kind Transfers, Imputed Rents, and Preference Heterogeneities
No full text6 January, 2025Over the past decade, expanded government in-kind transfers such as healthcare and education have influenced household welfare in many countries. To capture their effects on consumption inequalities, this study introduces an acquisition-based consumption measure that includes in-kind transfers and imputed rents, deflated using a superlative index. Using Japanese data from 2005 to 2021, we find that while conventional measures indicate an 11.2 percent decline in consumption among younger households, our index shows a 6.3 percent increase. Of the resulting 17.5 percentage-point gap, 10.7 points come from the deflator choice, while the rest arises from including in-kind transfers and imputed rents.This research was supported by the Joint Usage/Research Center at the Institute of Economic Research, Hitotsubashi University (IERPK2315, IERPK2405), and by MEXT/JSPS KAKENHI (23H00799, 24H00012)
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