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滋賀大学修士（データサイエンス）master thesi

No 442 2025 Winter The Hikone Ronso Contents

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Wildlife Conflict Management Initiatives in Bavaria, Germany: The Case of Beaver Management

Wildlife conflict management for human communities is a critical challenge for biodiversity conservation across Europe. The Eurasian beaver （Castor fiber）, reintroduced to many regions including Germany, exemplifies these conflicts due to its ecological benefits as an ecosystem engineer as well as its negative impacts on agriculture, forestry, infrastructure, and water management. This study examines the comprehensive approach to beaver management in Bavaria, Germany, highlighting how stakeholder engagement, flexible policy frameworks, and economic support mechanisms collectively contribute to conflict mitigation. Bavaria’s distinctive management structure, particularly the deployment of specialized beaver managers and advisors, bridges administrative agencies and local communities, facilitating targeted interventions and effective communication. Financial support schemes vary significantly by sector, reflecting differing societal values: agriculture prioritizes immediate economic compensation for crop damage; forestry focuses on sustainable forest management incentives; environmental conservation sectors emphasize biodiversity and habitat protection through long-term ecosystem management; and infrastructure and water management stress safety and preventive measures. These differences underscore the importance of adaptable and context-specific policies. Insights from the Bavarian experience highlight three critical elements: establishing localized expert intermediaries, offering diverse economic support aligned with stakeholder values, and balancing ecological protection with pragmatic population management. This multifaceted model demonstrates significant applicability to other regions confronting similar wildlife-human conflicts, suggesting a practical pathway towards sustainable coexistence between human societies and wildlife not only in Europe but also around the world.departmental bulletin pape

Quantitative text analysis of sustainability reporting: Decarbonization strategies and company characteristics in Japan

Following the recommendations of the Task Force on Climate-related Financial Disclosures (TCFD), listed companies in Japan must disclose sustainability-related information since the 2023 financial year. As carbon neutrality becomes integral to corporate management, understanding the strategic approaches taken by companies is crucial. The new reporting standard provides a unique opportunity to conduct large-scale, standardized analyses of corporate sustainability strategies, which was unfeasible in Japan due to a lack of comparable datasets. This study applies natural language processing techniques to quantify and statistically analyze the novel dataset of corporate sustainability strategies listed on the Tokyo Stock Exchange Prime Market. The analysis elucidates the relationship between decarbonization strategies, company size, industrial sector, and financial indicators. The key findings are as follows: 1. Large companies have the resources to focus on ‘climate change scenario analysis’ and ‘materiality management systems,’ while small companies emphasize inclusion such as ‘women's roles’ and ‘climate-related governance.’ 2. Strategies in energy-intensive and financial sectors engage more with ‘climate change scenario analysis.’ 3. Company size and industry significantly influence the focus of sustainability strategies, whereas the impact of financial indicators is relatively less pronounced. These findings offer actionable insights for policymakers, emphasizing the need for industry- and size-specific measures to support decarbonization efforts. For business leaders, the proposed methodology provides an explicit understanding of their sustainability strategies' impact on social responsibility and profitability. This research is expected to contribute to developing a new reporting framework for evaluating corporate sustainability strategies from the perspective of balancing social and corporate values.journal articl

「 データサイエンス × キョウイク 」 ジダイ ノ キョウイン ヨウセイ ニ オケル カダイ ト テンボウ

departmental bulletin pape

Colophon : Memoirs of Faculty of Education Shiga University No.74

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Reports about Seminars

articl

Children’s Formation of Concepts during Artistic Play (No.3) : Case Study of Artistic Play Activities for School Children

departmental bulletin pape

Properties of Homothetic Robust Epstein-Zin Utility

This study assumes homothetic robust Epstein-Zin (HREZ) utility and proves that if the relative risk aversion is greater than or equal to the elasticity of intertemporal substitution, then HREZ utility is homothetic stochastic differential utility. The study then derives a normalized representation in which the normalized aggregator is convex in its utility argument. The observational indistinguishability among HREZ utilities, ambiguity aversion, risk aversion, and preferences for information are analyzed. Furthermore, by leveraging the convexity of the normalized aggregator in lieu of the uniform Lipschitz condition, it is proven that HREZ utility is increasing, time consistent, and homothetic.technical repor

Back cover : Memoirs of Faculty of Education Shiga University No.74

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