1,720,954 research outputs found
ความผันผวนของผลตอบแทนและการกำหนดราคาหลักทรัพย์ในตลาดแรกให้ต่ำของหลักทรัพย์ ที่เสนอขายต่อสาธารณะเป็นครั้งแรกในตลาดหลักทรัพย์แห่งประเทศไทย และตลาดหลักทรัพย์ เอ็ม เอ ไอ
Full text linkThis research investigates the relationship between the level of underpricing of the Initial Public Offerings (IPO) listed on the Stock Exchange of Thailand (SET) and the Market of Alternative Investment (MAI) in Thailand during the period of January 2011 to July 2021. We found a strong positive relationship between the level of underpricing and both overall volatility and firm-specific risk. However, we did not find a clear relationship between the level of underpricing and systematic risk in these two markets. Furthermore, market timing, capital structure, and industry factor did not play an important role in determining the level of underpricing in the both markets. Last but not least, we found that the level of underpricing and the overall volatility in the Stock Exchange of Thailand (SET) are statistically lower than those in the Market of Alternative Investment (MAI) in Thailand. This reflects the higher level of information asymmetry in the Market of Alternative Investment (MAI) than in the Stock Exchange of Thailand (SET).งานวิจัยฉบับนี้ศึกษาความสัมพันธ์ระหว่างความผันผวนของราคาหลักทรัพย์ที่เสนอขายต่อสาธารณชนเป็นครั้งแรกในระยะเริ่มแรก และการกำหนดราคาในตลาดแรกต่ำกว่าราคาที่แท้จริง ซึ่งสะท้อนถึงผลตอบแทนในช่วงแรกของนักลงทุนตั้งแต่เดือนมกราคม 2554 ถึง เดือนกรกฎาคม 2564 ซึ่งผู้วิจัยพบความสัมพันธ์เชิงบวกที่ชัดเจนระหว่างระดับการกำหนดราคาหลักทรัพย์ในตลาดแรกให้ต่ำกับความเสี่ยงโดยรวม และความเสี่ยงเฉพาะ และไม่พบความสัมพันธ์ที่ชัดเจนระหว่างระดับการกำหนดราคาหลักทรัพย์ในตลาดแรกให้ต่ำ กับความเสี่ยงที่เป็นระบบซึ่งทิศทางตลาดโดยรวมโครงสร้างของเงินทุน และอุตสาหกรรมไม่มีผลต่อระดับการกำหนดราคาหลักทรัพย์ในตลาดแรกให้ต่ำ โดยตลาดหลักทรัพย์แห่งประเทศไทยและตลาดหลักทรัพย์ เอ็ม เอ ไอ มีระดับการกำหนดราคาในตลาดแรกต่ำ และความผันผวนโดยรวมที่แตกต่างกัน ซึ่งระดับการกำหนดราคาในตลาดแรกต่ำ และความผันผวนโดยรวมในตลาดหลักทรัพย์ เอ็ม เอ ไอ ที่มากกว่าสะท้อนให้เห็นถึงระดับความไม่สมมาตรของข้อมูลที่มากกว่
Contrasting Market Dynamics: The Fama-French Model in the SET and MAI of Thailand
Full text linkThis paper examines the applicability of the Fama-French three-factor model to the equity markets in Thailand, namely the SET and the MAI. Using a sample of data spanning 2012, to 2021, this study analyzes whether the factors of the model describe efficiently the stock returns in these markets and if the results are consistent with Fama and French (1993), in which small stocks outperform big stocks and value stocks outperform growth stocks. The results confirm that the Fama-French model holds in both the SET and the MAI, as size and book-to-market ratios exhibit significant explanatory power on stock returns. However, in the MAI, the size and value factors have negative signs, diverging from the original model's predictions. These findings have practical implications for portfolio managers. While size and book-to-market ratios are significant in both markets, managers in the MAI might benefit by allocating more capital to growth stocks and increasing their exposure to large-cap stocks in order to enhance portfolio returns. Yet, this strategy needs a more refined understanding of risks in investing in growth and large-cap equities since these results are contrary to the Fama and French (1993)’s hypothesis. By comparing and differentiating between SET and MAI, this study adds to existing literature with recent evidence on the effectiveness of the Fama and French (1993) model in Thailand and provides useful guidelines for portfolio management under these specific market settings
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe 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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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