1,720,968 research outputs found
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
ANALISIS SPILLOVER TERHADAP PASAR EKUITAS NEGARA BERKEMBANG DAN NEGARA MAJU PERIODE 2003-2011
Full text linkAbstract
This study analyzes spillover effect which occurred in emerging and advanced economies, resulting from the US financial crisis and Greece sovereign debt crisis, covering the period of January 2003-December 2011. Using the log likelihood approach, this research employs several univariate models, i.e. MA(1) GARCH (1,1)-M, MA(1) GARCH (1,1) and MA(1) GJR (1,1), with modified lag squared return of the crisis country during the pre-crisis (normal) and crisis periods. Empirical result demonstrate that : First, volatility is time varying, Second found an increase spillover effect in the crises period compare to the normal period. The magnitude of spillover is influenced at least by the degree of market openness between the crisis country and other countries. Third MA(1) GJR (1,1) is outperformed univariate model that described the data in this study compare to the others. Fourth there is not significant correlation between conditional volatility and excess return in the most country. Last, volatility is asymmetrical, and developing country is more sensitive to the negative shock in the America and Greek crises period.
Keywords : equity market; spillover; univariate GARCH; volatility.
Abstrak
Penelitian ini membahas mengenai spillover krisis keuangan Amerika dan krisis hutang Yunani ke negara berkembang dan negara maju periode Januari 2003-Desember 2011. Metodologi yang digunakan dalam penelitian ini menggunakan pendekatan loglikelihood dengan beberapa pemodelan univariate yaitu MA(1) GARCH (1,1)-M, MA(1) GARCH (1,1) dan MA(1) GJR (1,1) dengan modifikasi lag squarred return dari negara sumber krisis periode pra (normal) krisis dan periode krisis,. Hasil empiris penelitian ini, yaitu Pertama, volatilitas bersifat time varying, Kedua ditemukan adanya peningkatan spillover pada periode krisis dibandingkan periode normal baik pada krisis Amerika maupun Yunani. Besaran spillover setidaknya dipengaruhi oleh tingginya degree of market openess antara negara sumber krisis dengan negara lainnya. Ketiga MA(1) GJR merupakan pemodelan univariate terbaik pada penelitian ini dibandingkan MA(1) GARCH(1,1) dan MA(1) GARCH-M. Keempat ditemukan hubungan tidak signifikan antara volatility dengan excess return secara langsung pada banyak negara, terakhir volatilitas bersifat asimetris yang menandakan pengaruh dari bad news dapat meningkatkan volatilitas dan ditemukan negara berkembang lebih sensitif terhadap negative shock dibandingkan negara maju pada krisis Amerika dan Yunani.
Kata Kunci: pasar modal; spillover; univariate GARCH; volatilitas
ANALISIS SPILLOVER TERHADAP PASAR EKUITAS NEGARA BERKEMBANG DAN NEGARA MAJU PERIODE 2003-2011
Full text linkAbstract
This study analyzes spillover effect which occurred in emerging and advanced economies, resulting from the US financial crisis and Greece sovereign debt crisis, covering the period of January 2003-December 2011. Using the log likelihood approach, this research employs several univariate models, i.e. MA(1) GARCH (1,1)-M, MA(1) GARCH (1,1) and MA(1) GJR (1,1), with modified lag squared return of the crisis country during the pre-crisis (normal) and crisis periods. Empirical result demonstrate that : First, volatility is time varying, Second found an increase spillover effect in the crises period compare to the normal period. The magnitude of spillover is influenced at least by the degree of market openness between the crisis country and other countries. Third MA(1) GJR (1,1) is outperformed univariate model that described the data in this study compare to the others. Fourth there is not significant correlation between conditional volatility and excess return in the most country. Last, volatility is asymmetrical, and developing country is more sensitive to the negative shock in the America and Greek crises period.
Keywords : equity market; spillover; univariate GARCH; volatility.
Abstrak
Penelitian ini membahas mengenai spillover krisis keuangan Amerika dan krisis hutang Yunani ke negara berkembang dan negara maju periode Januari 2003-Desember 2011. Metodologi yang digunakan dalam penelitian ini menggunakan pendekatan loglikelihood dengan beberapa pemodelan univariate yaitu MA(1) GARCH (1,1)-M, MA(1) GARCH (1,1) dan MA(1) GJR (1,1) dengan modifikasi lag squarred return dari negara sumber krisis periode pra (normal) krisis dan periode krisis,. Hasil empiris penelitian ini, yaitu Pertama, volatilitas bersifat time varying, Kedua ditemukan adanya peningkatan spillover pada periode krisis dibandingkan periode normal baik pada krisis Amerika maupun Yunani. Besaran spillover setidaknya dipengaruhi oleh tingginya degree of market openess antara negara sumber krisis dengan negara lainnya. Ketiga MA(1) GJR merupakan pemodelan univariate terbaik pada penelitian ini dibandingkan MA(1) GARCH(1,1) dan MA(1) GARCH-M. Keempat ditemukan hubungan tidak signifikan antara volatility dengan excess return secara langsung pada banyak negara, terakhir volatilitas bersifat asimetris yang menandakan pengaruh dari bad news dapat meningkatkan volatilitas dan ditemukan negara berkembang lebih sensitif terhadap negative shock dibandingkan negara maju pada krisis Amerika dan Yunani.
Kata Kunci: pasar modal; spillover; univariate GARCH; volatilitas
PREDIKSI MODEL FINANCIAL DISTRESS (KEBANGKRUTAN) PADA PERUSAHAAN RITEL BURSA EFEK DENGAN MODEL ALTMAN DAN SPRINGATE INDONESIA PERIODE 2012-2016
Full text linkABSTRAK Penelitian ini bertujuan untuk mengidentifikasi model kebangkuratn yang paling powerfulluntuk perusahaan ritel di Indonesia dan memprediksi kondisi perusahaan yang akan mengalamikebangkrutan masa yang akan datang. Model yang digunakan dalam penelitian ini yaitu Altman ZScoredan Springate. Hasil dari model tersebut adalah dapat diketahui kondisi-kondisi perusahaantersebut sehat atau diambang kebangkrutan. Data yang digunakan dalam penelitian ini berjumlah 25perusahaan yang termasuk dalam industri ritel yang sudah listing di Bursa Efek Indonesia tahun2012-2016. Kata kunci: Altman, Springate, Financial Distress. ABSTRACT This study aims to identify the most powerful disaster models for retail companies inIndonesia and to predict the condition of companies that will experience bankruptcy in the future. Themodel used in this study is Altman Z-Score and Springate. The results of the model are the conditionsof the company, the health or whether they are on the verge of bankruptcy are identified. The dataused in this was 25 companies retail industry that had been listed on the Indonesia Stock Exchange in2012-2016. Kata kunci: Altman, Springate, Financial Distress
PREDIKSI MODEL FINANCIAL DISTRESS (KEBANGKRUTAN) PADA PERUSAHAAN RITEL BURSA EFEK DENGAN MODEL ALTMAN DAN SPRINGATE INDONESIA PERIODE 2012-2016
Full text linkABSTRAK Penelitian ini bertujuan untuk mengidentifikasi model kebangkuratn yang paling powerfulluntuk perusahaan ritel di Indonesia dan memprediksi kondisi perusahaan yang akan mengalamikebangkrutan masa yang akan datang. Model yang digunakan dalam penelitian ini yaitu Altman ZScoredan Springate. Hasil dari model tersebut adalah dapat diketahui kondisi-kondisi perusahaantersebut sehat atau diambang kebangkrutan. Data yang digunakan dalam penelitian ini berjumlah 25perusahaan yang termasuk dalam industri ritel yang sudah listing di Bursa Efek Indonesia tahun2012-2016. Kata kunci: Altman, Springate, Financial Distress. ABSTRACT This study aims to identify the most powerful disaster models for retail companies inIndonesia and to predict the condition of companies that will experience bankruptcy in the future. Themodel used in this study is Altman Z-Score and Springate. The results of the model are the conditionsof the company, the health or whether they are on the verge of bankruptcy are identified. The dataused in this was 25 companies retail industry that had been listed on the Indonesia Stock Exchange in2012-2016. Kata kunci: Altman, Springate, Financial Distress
- …
