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    The Economics of Durable Goods and the College Textbook Market

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    This paper examined factors determine the update frequency of college economics textbook in six subjects, which are Economics, Microeconomics, Macroeconomics, Econometrics, Industrial Organization, and Game Theory. The unique data set of books published in the U.S. between 1964 and 2018 gathered from the Internet by searching the title of the book and collected all previous versions that the textbook has. The results show that each book has its update pattern, and the update frequency is different among categories and levels. On average, it takes approximately three years to update a new edition of a book. Books in introductory and intermediate level update faster than an advanced class. An updated advanced level book takes nearly eight years to revise. The core economic class has updated faster than the elective class. Econometrics book takes approximately five years to rewrite. Industrial Organization book spends about six years to upgrade. To see how big of the update, the table of contents analysis in Microeconomics and Macroeconomics book is analyzed. According to the analysis, every book has a new cover design, but the table of contents could be the same. The mainly introductory-level book has cosmetic changes by adding new examples, exercises, and applications. It could have switched chapter and reorganized the content to fit the new format. For the advanced book that has more than one edition, it takes a longer time to update, but once it updates, it is considered a significant change. The analysis emphasized that the amount of content changes in the introductory book is fewer compared to the advanced level book. Note that the content in the introductory text contains more timely examples and questions which is outdated faster than the advanced level, which includes the core concept and theory. The theory of durable good monopolist and planned obsolescence could be used to explain the update. Finally, the study of the competition effect found a negative effect on the probability to update a book

    ค่าตอบแทนของแรงงานในอุตสาหกรรมสร้างสรรค์ในประเทศไทย

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    This research aimed to study compensation of workers in the creative industries in Thailand. This research used demographic-related data collected from the National Statistical Office (NSO) in the Labor Force Survey from 2012–2022, totaling 11 years with 10,711 observations. Descriptive statistics and regression analysis were used to describe the characteristics of labor compensation in the creative industry. The majority of creative industry workers (98 percent) were private employees, worked in the Creative Originals group, lived in the municipal area, had a primary education level, were married and were female. In the part of studying the factors related to labor compensation in the creative industry, this study applied Mincer's (1974) wage model It was found that factors that affect labor compensation in creative industries in Thailand were gender, marital status, household head status, educational level, work experience, minimum wage rate, provincial GDP per capita, provincial consumer price index, and urbanization. In addition, it was found that only those working in the Creative Goods/Products, Creative Content/Media, and Creative Originals groups had average labor compensation that is 6.3 percent, 5.1 percent, and 2 percent higher than those working in other creative group, respectively. By investing in education, developing the skills necessary for workers in the creative industries was also essential for the country's economic development.บทความวิจัยนี้ศึกษาค่าตอบแทนของแรงงานในอุตสาหกรรมสร้างสรรค์ในประเทศไทย โดยใช้ข้อมูลสำนักงานสถิติแห่งชาติ จากโครงการสำรวจภาวะการทำงานของประชากร (Labor Force Survey) ตั้งแต่ ปี พ.ศ. 2555–2565 รวมทั้งสิ้น 11 ปี มีจำนวน 10,711 ตัวอย่าง การวิเคราะห์ข้อมูลใช้สถิติเชิงพรรณา และการวิเคราะห์สมการถดถอย พบว่า แรงงานในอุตสาหกรรมสร้างสรรค์ส่วนใหญ่ (ร้อยละ 98) เป็นลูกจ้างเอกชน ทำงานในกลุ่มรากฐานทางวัฒนธรรมสร้างสรรค์ อาศัยอยู่ในเขตเทศบาล จบการศึกษาระดับประถมศึกษา มีสถานะสมรส และเป็นเพศหญิง ในส่วนของการศึกษาปัจจัยที่มีความสัมพันธ์ต่อค่าตอบแทนแรงงานในอุตสาหกรรมสร้างสรรค์ได้ประยุกต์ใช้แบบจำลองค่าจ้างของ Mincer (1974) พบว่า ปัจจัยที่มีผลต่อค่าตอบแทนแรงงานในอุตสาหกรรมสร้างสรรค์ ในประเทศไทย คือ เพศ สถานภาพสมรส สถานการณ์เป็นหัวหน้าครัวเรือน ระดับการศึกษา ประสบการณ์ในการทำงาน อัตราค่าจ้างขั้นต่ำ ผลิตภัณฑ์มวลรวมระดับจังหวัดต่อประชากร ดัชนีราคาผู้บริโภครายจังหวัด และ ความเป็นเมือง งานวิจัยยังพบว่า ผู้ประกอบอาชีพในอุตสาหกรรมสร้างสรรค์ในกลุ่มสินค้าสร้างสรรค์ กลุ่มคอนเทนต์และสื่อสร้างสรรค์ และกลุ่มรากฐานทางวัฒนธรรมมีค่าตอบแทนแรงงานโดยเฉลี่ยสูงกว่าผู้ประกอบอาชีพในอุตสาหกรรมสร้างสรรค์กลุ่มอื่นๆ ร้อยละ 6.3 ร้อยละ 5.1 และ ร้อยละ 2 ตามลำดับ โดยการลงทุนด้านการศึกษา และพัฒนาทักษะที่จำเป็นสำหรับแรงงานในอุตสาหกรรมสร้างสรรค์ยังมีความจำเป็นต่อการพัฒนาเศรษฐกิจของประเท

    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

    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

    Author Index

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    koamabayili/VECTRON-author-checklist: VECTRON author checklist

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    We have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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