Competitive Setting Research Articles

Impact of sports vision training on visuomotor skills and shooting performance in elite skeet shooters

IntroductionVision serves as a critical channel for athletes to acquire information during competitions and constitutes a vital component of their competitive ability. Through scientifically designed sports visual training, specific visual skills can be enhanced, thereby assisting athletes in achieving optimal performance in competitive settings. This study aim to explore the visuomotor abilities and shooting performance of skeet shooters through Sports Vision Training (SVT).MethodsTwenty elite skeet shooters were recruited and randomly assigned to an experimental group (EXP, n = 10) and a control group (CON, n = 10). The EXP underwent 6-week of SVT on Senaptec Seneory Station, twice a week, while the CON completed an equivalent workload of target-tracking training.ResultVisuomotor skills testing showed significant improvements in Near- Far Quickness, Perception Span, and Eye-hand Coordination in the EXP (p < 0.05), with no changes in the CON. Comparative post-test results between the two groups showed significant differences in N/F Q, Target Capture, Perception Span, Eye-hand Coordination, and Go/ No Go (p < 0.05). In shooting performance indicators, EXP shooters showed a highly significant improvement in hit accuracy (p < 0.01), with a similar difference compared to the CON. Additionally, they exhibited a highly significant improvement in shotgun-mounting reaction time (p < 0.01). Kinematic indicators of shotgun movement during the firing process for shot 2 showed significant differences in peak velocity (p < 0.01), X-axis (p = 0.033) and Y-axis (p = 0.001) displacement.ConclusionSVT can enhance visuomotor abilities in skeet shooters and has a positive impact on their shooting technique. This is primarily manifested in shorter shotgun-mounting reaction time and improved efficiency in action at shot 2, effectively improving their shooting accuracy.

Effects of high-intensity interval training on selected indicators of physical fitness among male team-sport athletes: A systematic review and meta-analysis.

Superior physical fitness and performance are essential in male team sports. Among a myriad of training methodologies, high-intensity interval training (HIIT) has gained popularity owing to its unparalleled efficiency and effectiveness. Previous studies have established that HIIT is a proven and effective approach for enhancing various physiological performance outcomes, particularly oxygen consumption capacity, in individual sports. Despite potential differences in training practices between male and female athletes, HIIT is recognized as an anaerobic training approach for team-sport athletes. This systematic review aimed to comprehensively and innovatively analyze the existing literature to examine the effectiveness of HIIT on oxygen consumption performance among male team-sport athletes. A comprehensive literature search was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines across the PubMed, SCOPUS, Web of Science, and SPORTDiscus databases until December 31, 2023. The inclusion criteria for this review encompassed research articles published in peer-reviewed journals that specifically focused on the impact of HIIT on the oxygen consumption performance of male players engaged in team sports. The study population exclusively consisted of male participants. The collected data included study characteristics, participant demographics, intervention details, and outcomes. Methodological quality assessment was performed using standardized criteria. The effect sizes (ESs) were calculated, and a meta-analysis was conducted using a random-effects model. The literature search yielded 13 eligible studies encompassing 286 athletes aged 14-26 years. The meta-analysis showed statistically significant enhancements in maximal oxygen uptake (VO2max) in six studies (ES, 0.19-0.74; p < 0.005), Yo-Yo Intermittent Recovery Test (YYIRT) performance in six studies (ES, 0.20-2.07; p = 0.009), repeated-sprint ability total time (RSAtotal) in five studies (ES, 0.18-1.33; p < 0.001), and the best and average times for repeated-sprint ability (RSAbest and RSAmean, respectively) in four studies (ES, 0.47-1.50; p < 0.001). However, two studies did not report any significant differences in the outcomes of the Velocity in 30-15 Intermittent Fitness Test (VIFT) between the experimental and control groups (ES, -0.08 and -0.27; p = 0.87 and 0.443, respectively). Moreover, one study did not report any significant differences in the maximal aerobic speed (MAS) (ES, 0.41, p = 0.403). HIIT significantly improved VO2max, YYIRT, and RSA; however, it did not appear to enhance VIFT and MAS performance, irrespective of age or competition level. These findings indicate that HIIT could serve as a valuable method for improving oxygen consumption performance (VO2max, YYIRT, and RSA) in male team-sport athletes, offering a time-efficient alternative to the traditional training methods. Further research is warranted to investigate its impact on performance outcomes in competitive settings and identify optimal HIIT protocols tailored to specific team sports.

Stress in Esports: A Qualitative Study on The Interplay of Player Experiences and Organizational Systems

Video games are designed for enjoyment and can benefit players, but in competitive settings such as esports they may lead to stress, a significant concern for players and coaches in competitive play due to potential negative psychological, social, and physical impacts. Since esports players are mostly adolescents and young adults, the vulnerability of their age underscores the need to investigate their stress experience. To this aim, we conducted semi-structured interviews with 16 First-Person Shooter (FPS) players and coaches (mean age 22.2) across A- to C-tiers. We examined players’ subjective stress experiences, team dynamics, and the broader esports organizational context. Findings reveal the players’ ability to recognize their stress signals and to make sense of stressful events, along with a stronger reliance on individual coping strategies over team-based or organizational resources, which remain largely inaccessible. Finally, we propose design strategies to strengthen esports players’ resilience and coping capacity in stressful environments.

The impact of long-haul travel and 13h time change on sleep and rest activity circadian rhythm in speed skaters during World Cup competitions.

Athletes frequently compete only a few days after long-haul travel. Longitudinal real-world data on athletes' sleep and sleep-wake cycle in competitive settings remain scarce. This study assessed the impact of a long-haul travel across ∼13 time zones on sleep patterns, rest-activity circadian rhythms (RAR), and their subsequent effects on neuromuscular function and race performance in the Canadian Short-Track Speed Skating Team. Nineteen athletes (24±4years, 11 women) travelled from Montréal (UTC-5) to Asia (UTC+8, UTC+9) for World Cup races between 2017 and 2019. Actigraphy data were collected before (Baseline) and during travel, during the stay in Asia (SIA), and during competition days. RAR were computed using cosinor analyses on accelerometry data with 24h phase periods. Countermovement jump height (CMJ) was measured in a subsample (n=10). Compared to baseline (7:08±0:53), athletes obtained less sleep during travel (6:16±1:27) and competition days (6:35±1:10), and more during SIA (7:32±0:46; time effect P<0.0001). Sleep efficiency and CMJ were greater in SIA than baseline (P=0.007 and P=0.0004, respectively). During SIA, sleep time increased by 9 min per night until the fifth day (P<0.0001), with a slight decrease in sleep efficiency (P=0.005) and an increase in CMJ (P<0.0001). For RAR, mean activity peaked on day 2, shifting from late evening to ∼15:00. Race performance was not different from other races of the same season (P>0.254). Our results demonstrated that, despite the possible sleep debt from the long-haul travel, athletes recovered within 5 days, highlighting their adaptability to manage sleep debt and jetlag without impacting competitive outcomes.

DOMINANTS FOR THE NATIONAL ECONOMIES’ COMPETITIVENESS

This article is devoted to innovation as a prerequisite for the national economies' sustainable development and a domain for their global competitiveness. The paper aims to highlight the internal essence of mutual relations between innovation, competition, and economic growth. It was assumed that innovation positively affected the competitive behaviour of economic agents and eventually contributed to an increase in public welfare. Regarding the period from 2007 to 2022, we considered the sample of Central European countries and the Baltic states. Theoretical generalization has been applied to systematize the factors determining competition and innovation. We used statistical methods and comparative analysis to investigate the indicators' dynamics. The interdependencies between macroeconomic dynamics and a set of competition and innovation indicators have been assessed. It was proved that the proportion of medium and high-tech industry value added in the total value added of manufacturing was quite important, yet not the ultimate criterion for ensuring high growth rates and sustainable development. The dynamics of commercial spending on research and development had been ambiguous and unsustainable. To ensure strategic competitiveness, national governments should encourage innovation in their respective business communities. The sampled economies have been examined considering a set of innovation and competition indicators (e.g., gross capital formation, research and development expenditures, logistics performance, export technological structure, carbon dioxide emission, and renewable energy consumption). Considering the implications of globalization, tax burden as an integral characteristic of the national economy's competitiveness has been evaluated as well. It was pointed out that: a) a stable, understandable and transparent tax policy should be implemented to protect the investors' property rights; b) a system of total anti-corruption measures aimed at preventing the practices of receiving undue benefits should be set; and c) the business sector should improve own environmental and social responsibility complexly, introduce resource-saving, green and circular economy.

Challenging the status quo: A feminist analysis of gender dynamics, motivation, and empowerment in hackathons

This study explores gender differences in motivation, anxiety, and confidence within hackathon environments. It examines whether intrinsic and extrinsic motivations influence the relationship between gender and these psychological states. Data from HackYeah 2023 participants indicate that, while female participants do not report higher anxiety levels, they display marginally lower confidence compared to their male counterparts. Contrary to initial hypotheses, neither intrinsic nor extrinsic motivation significantly influences the gender-anxiety relationship. However, extrinsic motivation does partially mediate the gender-confidence relationship. These results challenge patriarchal structures and highlight the resilience and capabilities of women in competitive technological settings, emphasizing the need for feminist approaches to dismantle systemic biases. The study also discusses its limitations and the implications for future research and hackathon organization, underscoring the critical role of motivational factors in mitigating gender disparities in hackathons. The study underscores the importance of feminist interventions in hackathons to cultivate an environment where all genders can thrive equally.

THE RELATIONSHIPS AMONG GYMNASTS’ TRAINING AGE, BODY MASS INDEX, BALANCE CONTROL, AND GYMNASTICS PERFORMANCE

The aim of the study was the examination of the relationships among gymnasts’ training age, body mass index (BMI), balance control during the execution of handstand, standing scale forward, and stork standing in relevé position, and their performance in competition settings. Forty young competitive gymnasts (20 males; age: 12.20 ± 1.98 years, and 20 females; age: 12.33 ± 2.07 years, mean ± SD) participated in this study. A portable digital platform for posturography was used to measure maximal pressure, center of pressure (CoP) sway area, CoP linear distance displacement and CoP velocity. The resulting data were analyzed using an integrated software module (Foot Checker, version 4.0). The results confirm the reliability of the measurements. Strong positive correlations were found between gymnasts' performance in the gymnastics competition, and their training age and BMI, with relationships also identified between performance and variables related to balance control. Regression analysis revealed that gymnasts' training age, BMI, and balance control in performing the assessed gymnastics skills had predictive significance in determining their performance in the competition, taking into account differences between age groups. Despite the limitations of the study, the results represent a valuable contribution to the literature by expanding knowledge about predicting gymnastics performance in competition. Furthermore, the results provide evidence for the identification of talent in gymnasts, offer coaches insights to improve training efficiency, and provide recommendations for future research in this area.

Dynamic Adaptive Charging Network Planning Under Deep Uncertainties

Charging infrastructure is the backbone of electromobility. Due to new charging behaviors and power distribution and charging space constraints, the energy demand and supply patterns of electromobility and the locations of current refueling stations are misaligned. Infrastructure developers (charging point operators, fleet operators, grid operators, vehicle manufacturers, and real-estate developers) need new methodologies and tools that help reduce the cost and risk of investments. To this extent we propose a transport-energy-demand-centric, dynamic adaptive planning approach and a data-driven Spatial Decision Support System (SDSS). In the SDSS, with the help of a realistic digital twin of an electrified road transport system, infrastructure developers can quickly and accurately estimate key performance measures (e.g., charging demand, Battery Electric Vehicle (BEV) enablement) of a candidate charging location or a network of locations under user-specified transport electrification scenarios and constraints and interactively and continuously calibrate and/or expand their network plans as facts about the deep uncertainties about the supply side of transport electrification (i.e., access to grid capacity and real-estate and presence of competition) are gradually discovered/observed. This paper describes the components and the planning support of the SDSS and how these can be used in competitive and collaborative settings. Qualitative user evaluations of the SDSS with 33 stakeholder organizations in commercial discussions and pilots have shown that both transport-energy-demand-centric and dynamic adaptive planning of charging infrastructure planning are useful.

Agency conflicts, product market competition and investment efficiency: new evidence from emerging market

PurposeThis study examines the influence of product market competition on investment inefficiency of Indian firms in context of agency problems. Additionally, this study also investigates whether intense competition is a substitute for or complementary to corporate governance in reducing investment inefficiency of firms.Design/methodology/approachUtilizing the residuals extracted from Biddle et al. (2009) investment model, investment inefficiency, overinvestment and underinvestment are measured for 506 non-financial Indian listed firms with 6,998 firm-year observations from 2009 to 2022. Product market competition is measured using various proxies such as the Herfindahl–Hirschman index, top-four firm concentration ratio, total number of firms in industry, industry market size, weighted average of entry costs and research and development (R&amp;D) to sales ratio. Firms' internal governance is measured using a newly corporate governance index developed with 65 new governance stipulations. Several pooled ordinary least squares (OLS) panel regressions were estimated involving investment inefficiency of firms, product market competition, governance index and firm-specific variables. Endogeneity issues were addressed through two-stage least squares. Robustness checks were also conducted using a two-step system generalized method of moments (GMM).FindingsThe main finding of the study indicates that heightened product market competition reduces investment inefficiency, overinvestment and underinvestment among the selected Indian firms suggesting that firms facing intense competition are less prone to invest below or above optimal levels. This is primarily because in highly competitive industries, managers face greater liquidation risks, prompting more efficient capital investment decisions. The results also indicate that robust corporate governance significantly mitigates investment inefficiencies in non-competitive industries compared to competitive ones suggesting heightened competition reduces managerial slack, resulting in diminished benefits from good governance in competitive settings. Overall results indicate a substitution effect between corporate governance and competition in reducing investment inefficiency, with robustness across various empirical specifications, industry classifications and alternative competition and inefficiency measures.Practical implicationsThe evidence from this work emphasizes the pivotal roles of market competitiveness and corporate governance in shaping investment efficiency. Regulators must closely monitor monopolistic behaviors to safeguard stakeholder interests, enhance investment efficiency and foster value creation. Recognizing the positive impact of market competition, firms should prioritize initiatives to promote industrial openness and intensify competition while strengthening market mechanisms. Policymakers should consider implementing competition-centric governance policies, such as deregulation and antitrust laws, to stimulate market competition. These measures can mitigate governance-related costs and promote a competitive marketplace.Originality/valueThis study provides fresh evidence concerning the effects of product market competition on investment efficiency of Indian firms under new governance norms, an unexplored area in India as most of the existing work has primarily examined the association between competition and investment levels. To best of our knowledge, this is one of the earliest studies demonstrating the substitution effects of competitiveness and governance systems on lowering investment inefficiency suggesting a significant influence of corporate governance in non-competitive industries. Finally, this study contributes to the field of methodology by developing a new firm-specific governance index based on 65 governance indicators.

Asymmetric Naïveté: Beliefs About Self-Control

Do individuals anticipate time inconsistency in others? This paper jointly investigates beliefs about one’s own and others’ present bias. In an online laboratory experiment, participants engaged in a real-effort task display little awareness of their own present bias but anticipate present bias in others. Structurally, I estimate a present bias parameter [Formula: see text] of 0.82. Participants perceive others’ [Formula: see text] to be 0.87, indicating substantial sophistication, contrasted with 1.03 for themselves, indicating full naïveté. At the individual level, asymmetric naïveté correlates with overoptimism regarding one’s own versus others’ task enjoyment and time availability. The wedge in beliefs about present bias can inform equilibrium outcomes in a number of collaborative, competitive, and hierarchical settings, including teams in the workplace, management practices such as deadlines and tournament incentive schemes, and household consumption decisions. This paper was accepted by Yan Chen, behavioral economics and decision analysis. Funding: Financial support from the Laboratory for Economic Applications and Policy (Harvard University); Pershing Square Venture Fund for Research on the Foundations of Human Behavior (Harvard University); Harvard Business School (PhD Research Budget); and the Russell Sage Foundation (Small Research Grant) is gratefully acknowledged. Supplemental Material: The online appendix and data files are available at https://doi.org/10.1287/mnsc.2021.01780 .

Multi-Agent Reinforcement Learning for Smart Community Energy Management

This paper investigates a Local Strategy-Driven Multi-Agent Deep Deterministic Policy Gradient (LSD-MADDPG) method for demand-side energy management systems (EMS) in smart communities. LSD-MADDPG modifies the conventional MADDPG framework by limiting data sharing during centralized training to only discretized strategic information. During execution, it relies solely on local information, eliminating post-training data exchange. This approach addresses critical challenges commonly faced by EMS solutions serving dynamic, increasing-scale communities, such as communication delays, single-point failures, scalability, and nonstationary environments. By leveraging and sharing only strategic information among agents, LSD-MADDPG optimizes decision-making while enhancing training efficiency and safeguarding data privacy—a critical concern in the community EMS. The proposed LSD-MADDPG has proven to be capable of reducing energy costs and flattening the community demand curve by coordinating indoor temperature control and electric vehicle charging schedules across multiple buildings. Comparative case studies reveal that LSD-MADDPG excels in both cooperative and competitive settings by ensuring fair alignment between individual buildings’ energy management actions and community-wide goals, highlighting its potential for advancing future smart community energy management.

How Gastronomic Image Shapes Tourism Competitiveness: An Approach with Sentiment Analysis

The competitiveness of tourist destinations is influenced by their relative attractiveness, which will play an essential role in their global success; gastronomy is one of the main motivations that lead tourists to visit a given destination. This research aims to investigate gastronomy’s role in the destination’s competitiveness and image through the analysis of online reputation, both in terms of ratings and sentiments provided by the experience, through the creation of an index of the online reputation of gastronomic image. Online restaurant reviews retrieved from TripAdvisor, from restaurants belonging to eight tourism destination regions, considered the competitive set to the Algarve, are analysed by applying sentiment analysis algorithms. With regard to the Algarve region, it was concluded that the Costa del Sol and the Tropical coast were the most competitive regions in terms of gastronomic image, where the inclusion of seafood products in meals was one of the strategic aspects used to increase the competitiveness of this region. These results can help restaurant managers and destination management organisations to better understand the different customer needs and how to increase their competitiveness.

The Economics of Geographical Indications: An Update

We discuss the economics of geographical indications (GIs), a form of collective branding of products based on their geographic origin. GIs serve as essential tools in addressing market failures stemming from information asymmetries and supporting the provision of high-quality products in competitive settings. They are increasingly used in wine and food markets. We briefly review the institutional development of GIs, discuss the basic economic theory arguments that rationalize the use of GIs, and characterize their key functions. We then examine the empirical evidence from studies that have probed various features of GIs. We find consensus on the potential for GIs to address a very real market failure and the positive role that policies and supporting institutions can play. We also uncover limitations and unresolved problems. GIs have both efficiency and distributional consequences, their international implications remain controversial, and tensions between tradition and innovation emerge while confronting new challenges such as climate change.

Choking under pressure in online and live esports competitions

This paper explores the phenomenon of choking under pressure within the context of esports, particularly focusing on the difference between online and live competitive settings and on high-pressure situations during overtime rounds. Employing a quasi-experimental design, the research leverages an extensive dataset covering professional CS:GO matches from 2012 to 2022 (match-level) and from 2015 to 2023 (round-level), including performance metrics such as players' ratings, headshot percentages, and teammate damage. The findings indicate a substantial decrease in the performance of esports players during overtime. This effect, however, is significantly mitigated in online competitions compared to live events. The study also reveals that while individual performance suffers under pressure, the impact on team coordination is less pronounced in online settings, suggesting that the virtual environment might offer a buffer against the negative effects of stress on team dynamics. This study enriches our understanding of performance psychology in digital settings but also opens up new avenues for research on stress, teamwork, and performance in professional and virtual environments.

Training Load And Cardiovascular Stress Differ In Practice And Competition Settings In Female Collegiate Basketball

Training Load And Cardiovascular Stress Differ In Practice And Competition Settings In Female Collegiate Basketball

Longitudinal relationships between emotional processes and perceived performances among athletes: The moderating effect of emotional intelligence

ObjectivesBased on emotional intelligence (EI) theory and cognitive motivational relational theory of emotions, this study aimed to explore longitudinal relationships between the core constructs of the emotional process (appraisals, coping and emotions) and perceived performances during competition and to examine the moderating role of EI on these relationships. MethodsA total of 453 athletes (Mage= 20.6; 117 females and 336 males) from different sports and different competitive levels participated in the study. Appraisals, coping, emotions, and perceived performances were assessed after five competitions across the season and EI was assessed at the beginning of the competitive season. Hierarchical linear modelling analyses were conducted to: (a) Evaluate the mediational role of coping strategies on the appraisals – emotions relationships and on the appraisals – perceived performances relationships; (b) explore the mediational role of emotions on the appraisals – perceived performances relationships; and (c) test the moderating role of EI on these relationships. ResultsThe results showed that: (a) coping played a mediational role on the appraisals-emotions relationships; (b) emotions mediated the appraisals-perceived performances relationships; and (c) EI moderated the aforementioned relationships between the core constructs of emotional process and perceived performances. ConclusionsAs a whole, this study furthered knowledge about the ways the core emotional constructs are interrelated and impact perceived performances within competitive settings. Through coping strategies and cognitive appraisals, EI was associated with higher intensity of pleasant emotions and perceived performances. As an applied implication, we encourage sport psychologists and coaches to provide training programs aimed at enhancing EI.

Optimal Sin Taxation and Market Power

We study how market power impacts the efficiency and redistributive properties of sin taxation, with an empirical application to sugar-sweetened beverage taxation. We estimate an equilibrium model of the UK drinks market, which we embed in a tax design framework to solve for optimal sugar-sweetened beverage tax policy. Positive price-cost margins for drinks create inefficiencies that lower the optimal rate compared with a perfectly competitive setting. Since profits mainly accrue to the rich, this is partially mitigated under social preferences for equity. Overall, ignoring market power when setting tax policy leads to welfare gains 40 percent below those at the optimum. (JEL D62, H21, H23, H25, L13, L25, L66)

Effects of 4 weeks of device-induced normobaric intermittent hypoxia/hyperoxia training on the performance of elite cyclists: A pilot study

Introduction &amp; Purpose Classic altitude training and other forms of hypoxia are regularly used in endurance training (Mujika et al., 2019). Due to corona exit restrictions in 2019-2020, device-induced normobaric hypoxia/hyperoxia was suggested as an alternative to classic altitude training. Intermittent hypoxia/hyperoxia training (IHHT) has been studied and used in various forms since the 1940s (Serebrovskaya, 2002) with the advantage to be used at the athlete’s training site (Burtscher, 2005). The aim of this pilot study was to test the effects of a IHHT intervention on aerobic performance, hematological parameters and hypoxia-induced factor-1α (HIF-1α). Method A total of 11 athletes (2 women) from the U23 and elite national squads of the Austrian Cycling Federation completed 16 IHHT units in addition to their normal training program over a period of 4 weeks as part of a randomized cross over intervention study (control – IHHT, IHHT – control). The IHHT units were carried out on a Cellgym CellAir® Gecko Plus device at rest without exercise following a predetermined protocol (Sessions 1-8: 5 min of hypoxia (12.0% oxygen) followed by 3 min of hyperoxia (34.0% oxygen) repeated five times. Sessions 9-16): 6 min of hypoxia (11.0% oxygen) followed by 3 min of hyperoxia (34.0% oxygen). During the 4 weeks of control period, participants should maintain their training schedule. Aerobic performance was determined before and after the intervention by spiroergometry. As secondary outcomes, changes in hematological parameters and protein levels of HIF-1α were determined from venous blood which was processed immediately after collection. Serum was stored at -80 °C until HIF-1 α determination by ELISA technique. Results Eleven out of 13 athletes took part in the pre – post IHHT measurements, but only three of them managed to participate in the measurements planned for the control period, making it impossible to compare the two conditions. Replacement was not possible due to the availability of candidates and the ongoing preparation for the season. After 4 weeks of intervention with 16 IHHT training sessions, no significant changes were observed in performance parameters such as VO2peak, relative VO2max, maximum power (watts) or threshold values (p &gt; 0.05). There were also no significant changes in blood enzymes, lipid and iron metabolism (p &gt; 0.05). However, a tendency towards increased values of haemoglobin (z = 1.738; p = 0.082) and a significant increase of erythrocyte counts (z = 2.193; p = 0.028) were detected. Other haematological parameters and HIF-1α did not change significantly (p &gt; 0.05). Discussion &amp; Conclusion In summary, four weeks of device-induced normobaric IHHT had a modest effect on haematological parameters, but with no detectable transfer to maximal or submaximal endurance performance in highly trained athletes. Although various studies have shown that the difference between normobaric and hypobaric hypoxia exposure is not limited to the partial pressure of oxygen, but Mounier and Brugniaux state that the physiological responses are in fact equivalent (Mounier &amp; Brugniaux, 2012). However, due to the limitations of the competitive setting and the low sample size, the final interpretation of the study remains difficult. References Burtscher, M. (2005). Intermittierende Hypoxie: Höhenvorbereitung, Training, Therapie [Intermittent hypoxia: altitude preparation, training, therapy]. Schweizerische Zeitschrift für Sportmedizin und Sporttraumatologie, 53(2), 61-67. Serebrovskaya, T. V. (2002). Intermittent hypoxia research in the former Soviet Union and the commonwealth of independent states: History and review of the concept and selected applications. High Altitude Medicine &amp; Biology, 3(2), 205-221. https://doi.org/10.1089/15270290260131939 Mounier, R., &amp; Brugniaux, J. V. (2012). Counterpoint: Hypobaric hypoxia does not induce different responses from normobaric hypoxia. Journal of Applied Physiology, 112(10), 1784-1786. https://doi.org/10.1152/japplphysiol.00067.2012a Mujika, I., Sharma, A. P., &amp; Stellingwerff, T. (2019). Contemporary periodization of altitude training for elite endurance athletes: A narrative review. Sports Medicine, 49, 1651-1669. https://doi.org/10.1007/s40279-019-01165-y

Product Market Competition, Mergers and Acquisitions, and Covenant Redesign

Abstract Industry competition shocks are major drivers of mergers and acquisitions (M&amp;A). We document strong positive effects of competition shocks on M&amp;A-related covenant redesign. Acquiring firms in high-competition environments are significantly more likely to undertake tender offer bond repurchases and reduce restrictions on mergers, investments, payouts, and financing, but increase change-in-control covenants. This effect is stronger for larger, more profitable firms. Moreover, announcement returns from M&amp;A transactions of redesigning firms in more competitive settings are significantly higher, while acquisition deal premiums are lower. Our study shows the significant effect of industry competition shocks on debt recontracting in M&amp;A. (JEL G32, G34)

Delivering project SCORE in competitive youth sport settings.

This study evaluates the effectiveness of the Project SCORE intervention in fostering Positive Youth Development (PYD) within competitive youth sport settings in Portugal. Project SCORE is an online PYD-focused tool developed to assist coaches in promoting the 4Cs-competence, confidence, connection, and character-within their coaching. The research involved 13 coaches and 70 youth athletes from football and rowing teams. Methodologically, this study analyzed the pre- and post- Project SCORE intervention data, assessing the perceptions of coaches and athletes towards the development of the 4Cs. Results indicated significant improvements in athletes' perceptions of 4Cs post-intervention, and among coaches' perceptions, there was a significant improvement in the practice and transfer of life skills. Particularly, coaches showed enhanced abilities in fostering life skills and facilitating the transfer of these skills to competitive environments, although some dimensions like sport climate did not sustain positive changes. The findings highlight the benefits of customized PYD-based programs in competitive youth sports and suggest the need for further research to enhance their widespread and consistent implementation.