1,720,965 research outputs found
Individual performance and environment: Home advantage in ATP tennis
Full text linkWe investigate the role of home advantage (HA) in ATP tennis (2000–2022). Our findings confirm the existence of HA with a heterogeneous effect shaped by a combination of individual player characteristics and situational contexts. Individual mechanisms reveal that less experienced players benefit more from HA, while talent does not show a significant interaction. Cultural background plays a role, with individualistic players exhibiting a stronger HA, unlike collectivistic ones. Among situational factors, the absence of spectators during COVID-19 indicates that while HA persists, crowd presence does not seem to be the primary driver. Opponent travel fatigue amplifies HA, whereas prior knowledge of the facilities has no substantial impact. These findings extend beyond sports, indicating that structured, familiar environments enhance performance and resilience in professional settings, though their effects vary based on experience and cultural background
Environmental sectoral classification and ESG signals: Evidence on the cost of debt from the EU Taxonomy
Full text linkThis study examines how sector-level environmental classifications and firm-level ESG performance jointly influence firms’ financing conditions. While ESG scores capture the sustainability profile of individual firms, the EU Taxonomy provides a credible framework to classify the environmental sustainability of entire economic sectors. Using a sample of 770 European companies between 2007 and 2022, we document that companies operating in environmentally sustainable sectors according to the EU Taxonomy enjoy lower debt costs regardless of their individual environmental performance, proxied by ESG scores. Conversely, firms in the other sectors experience lower debt cost only when they achieve higher environmental scores. These findings highlight the complementary roles of sectoral classification and firm-level signals in influencing creditors’ assessment of environmental risk, and underscore the importance for firms in less sustainable sectors to credibly signal their environmental commitment to improve access to debt finance
L’efficienza del mercato delle scommesse sportive a quota fissa: un’analisi empirica
No full textNel contributo viene analizzato il mercato delle scommesse sportive in Italia. In particolare, la finalità è quella di constatare se le ipotesi di efficienza in senso debole del mercato si realizzano nel caso delle scommesse a quota fissa fornite dai bookmaker sui quattro principali campionati calcistici europei. Per fare ciò sono state prese in considerazione due diverse casistiche molto diffuse in letteratura, l'errore casa/trasferta e l'errore favorita/sfavorita, allo scopo di verificare se vi siano o meno distorsioni nel rendimento delle quote che rappresenterebbero la sottostima (o la sovrastima) di una classe di esiti rispetto ad un’altra. Nel caso in cui vi siano dei rendimenti differenziali tra le quote sarà possibile individuare delle strategie di scommessa che garantiscano un margine positivo allo scommettitore confermando quindi un'eventuale inefficienza del mercato
I GIUDIZI DI REVISIONE E LE POLITICHE DI BILANCIO ANORMALI NELLE AZIENDE FAMILIARI ITALIANE
No full textAbstract non disponibil
Financial constraints on sport organizations’ cost efficiency: the impact of financial fair play on Italian soccer clubs
No full textWe analyze the effect of the introduction of stricter financial constraints on the trade-off between sporting and economic results. We apply a stochastic Cobb-Douglas production frontier model to a sample of Italian Serie A teams, i.e. first division, over the period 2005–2015 to evaluate the variation in soccer clubs’ cost efficiency following the application of the UEFA Financial Fair Play (FFP) principles in 2010. FFP imposes stricter financial regulation as a requirement for a club to be admitted to Union of European Football Associations (UEFA) tournaments. Firstly, we find that FFP does not improve the average efficiency of the Italian first division teams. Secondly, we show that FFP has contributed to leveling the playing field, reducing the gap in terms of efficiency between top teams and lower-tier teams
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
Semi-strong inefficiency in the fixed odds betting market: Underestimating the positive impact of head coach replacement in the main European soccer leagues
No full textIn this paper we analyse the efficiency of the sports betting market, seeking to ascertain whether the market is efficient in the case of fixed odds provided by bookmakers in the four major European soccer leagues under the semi-strong efficiency hypothesis. By examining the trends of odds in the event of a major change in expectations about team results, i.e. when the head coach of a team is replaced, we attempt to verify the argument that a profitable strategy for the bettor is likely to be possible. In this case, the market under consideration would be inefficient. Analysing the average effect of head coach replacement, we find a positive impact on team performance. Based on this information, we build a betting strategy to find out whether the bookmakers’ odds absorb this change in expectations about the winning probability of involved teams. Comparing our strategy result with a distribution generated in a Monte Carlo experiment, we conclude that the betting market is inefficient in its semi-strong form
- …
