江西省农村土地利用变化及生态系统服务价值研究

[目的]土地利用变化及生态系统服务价值研究一直是土地资源评价与管理方面的热点研究问题,通过对江西省土地利用变化和生态系统价值进行研究,为江西省土地规划和资源的可持续利用提供理论依据。[方法]文章基于文献查阅的方法,利用多样性指数模型、土地利用动态度和生态系统服务价值模型,结合2009~2016年江西省农村土地利用的现状及变化,分析了其生态系统服务价值及相应变化。[结果]近年来,江西省农村土地利用程度高、多样性指数中等且呈先下降后上升的趋势。土地利用类型的面积与该土地利用类型的生态系统服务价值呈同向变化的关系。通过对土地利用类型的ESV值进行分析,发现农村土地利用的生态系统服务功能价值总体在减少;对单项生态系统价值分析,水源涵养在江西省农村土地生态系统服务中占有最重要的地位。[结论]2009~2016年江西省农村土地利用结构都发生了变化,生态系统服务总价值出现了降低趋势,各单项生态系统服务功能价值也在减少,土地利用结构对生态系统功能价值具有决定作用。因此,政府应该合理利用土地,保护生态系统,协调好环境与经济发展的关系。     

Effects of scale economies and production seasonality on optimal hub locations: the case of regional fresh produce aggregation

Interest in supporting local and regional food systems is rising and food hubs have attracted considerable attention among Federal, State, and local policymakers. This study explores the problem of endogenous hub location in fresh produce value chains in the Northeastern United States. To overcome limitations in the literature, we incorporate the effects of economies of scale and production seasonality into our models. Three experimental models are designed to examine the effects of alternatively applying yearly, quarterly, and monthly data on model solutions. We explicitly assess how interactions of scale economies and seasonality influence the structure and spatial attributes of an optimal regional produce aggregation hub system. The three models generate marketed different solutions and in many respects they lead to different conclusions about developing local/regional supply chains. The monthly model allows for production seasonality and actual hub operation cycle frequency and thus leads to more efficient hub solution with rich policy implications.     

How have US banks adopted the Financial Accounting Standards Board's Level 3 fair value disclosure rules?

We examine how banks have complied with the Financial Accounting Standards Board's disclosure rules on Level 3 recurring fair value measurements. We document widespread noncompliance with the basic disclosure requirements. We also find that the noncompliant banks are smaller in size and are associated with lower audit quality, lower institutional ownership and less effective internal controls. Our results should be of use to regulators, auditors and audit committees in the United States, Australia and other countries for assessing the likelihood of noncompliance with fair value disclosure rules and improving the quality of fair value disclosures provided to investors.     

Institutional ownership,cross-shareholdings and corporate cash reserves in Japan

Cross-country studies document a negative relation between corporate governance and cash holdings. In contrast, this relation is found to be positive in the United States. In this paper, we examine the case of Japanese firms. Using institutional ownership and cross-shareholdings as the main governance variables, we show that better governance is associated with higher cash balances as in the United States. The reason is that better-governed firms make better investment decisions. Their investments are not driven by excess liquidity and result in higher profitability and higher firm valuation. Overall, our findings indicate that management profligacy is a bigger concern to shareholders than management propensity to hoard cash because of risk aversion.     

中国粮食仓储的历史与展望

粮食仓储作为中国历史发展中的重要载体,对于社会的繁荣、稳定和发展具有重要意义。本文主要论述了中国古代和现代粮食仓储的发展历史及其价值,并对粮食仓储未来的发展进行展望。     

自然资源资产管理：理论逻辑与改革导向

研究目的:针对自然资源资产管理的理论诠释不清、改革导向不明、自然资源的资产属性尚未充分体现等问题,本文立足新时代党和国家机构改革背景,分析自然资源资产管理的理论逻辑,明确未来自然资源资产管理的改革方向。研究方法:文献研究法,综合分析法。研究结果:新时代自然资源资产管理应当基于"权利—价值—经营—管理"的理论逻辑体系框架,其中自然资源资产权利应当包含自然资源资产所有权、资格权、使用权和管理权等对象内涵,以完整、明晰和稳定作为权利实现要求;自然资源资产价值显化应当基于生态、经济等价值的全面认知,针对不同资产类型分类采用不同价值评估方法,完善市场培育、价值调节和公平分配机制;自然资源资产经营既要保障粮食安全、生态安全和规避可能风险,又要实现高品质利用,因而应当以底量保安全,以存量、数量、质量、差量和流量保协同,优化完善编制资产负债表;自然资源资产管理则应当打破自然资源资产管理割裂的现状,实现系统统一管理并建立全平台、全过程、全资源和全空间的综合监督机制。研究结论:自然资源资产管理应以"三维立体多权化"、"生态价值具象化"、"安全品质六量化"和"系统监管综合化"为改革导向,以期全面推进未来多维、绿色、高效、安全、品质、有序的自然资源资产管理方式的切实实现。     

Are firms ready to use big data analytics to create value? The role of structural and psychological readiness

In this study, we leverage Information Technology (IT) readiness literature and resource-based view (RBV) to investigate the impact of firm structural and psychological readiness on firm value creation, as mediated by big data analytics usage. The proposed research model is empirically validated using survey data from 179 senior IT managers. The findings demonstrate the importance of both structural (i.e. IT infrastructure capability, tools functionality, employee analytical capability, and bigness of data) and psychological readiness (i.e. IT proactive climate) in enhancing firm value creation through big data analytics usage. These results provide interesting theoretical and practical insights.     

Brand effect on extended warranty valuation: Subjective value versus popularity

In five experiments, we explore the effect of brands on warranty valuation and the conditions under which two mechanisms – liking based and availability based – determine the effect. We explore the moderating role of focused deliberation, which accentuates the brand effect under availability mechanism but reduces the effect under subjective value-based mechanism. In Experiment 1, we consider brands that vary in terms of both subjective value and popularity. When a brand is better in both subjective value and popularity, it commands higher warranty WTP. Focused deliberation moderates this effect of brand on warranty valuation. In Experiment 2, we consider brands that vary only in terms of subjective values (but not popularity). While the warranty valuation of the two brands does not differ under no deliberation, deliberation decreases WTP for brands with higher subjective value. In Experiment 3, we consider brands that differ only in terms of popularity (and not subjective value). In this context, deliberation increases warranty WTP for the more popular brand. Experiments 2A and 3A use warranty choice as the dependent variable and conceptually replicate the effects obtained in experiments 2 and 3, respectively.     

Corporate Social Responsibility,Firm Value and Corporate Governance Code Revisions: The Asian Evidence*

The present study examines the relationship between corporate social responsibility (CSR) and firm value, and the effects of corporate governance code revisions on the relationship. We examine this relationship for: (i) a high‐income country, Japan; (ii) middle‐income countries China, Malaysia and Thailand; and (iii) low‐income countries India and Indonesia. We use the Heckman two‐stage sample selection bias approach for the empirical analysis. We find that Japanese stakeholder CSR and environmental CSR have a smaller positive effect on firm value compared to the middle‐income countries, but we do not find any statistically significant association for the low‐income countries. In addition, we find that only Japanese corporate governance code revisions significantly contribute to the positive relationship between CSR and firm value, which concurs with the new recommendations documented in the revised codes of corporate governance. The present study reveals that foreign major shareholders matter to the value creation of CSR in Japan and the middle‐income countries of China, Malaysia and Thailand.