钢铁行业成本核算制度研究

为了解决钢铁行业普遍亏损、经营困难等问题，对当前钢铁行业成本核算面临的各种问题进行分析，相应的提出新制度实施的必要性。而后详细阐述了钢铁行业成本核算制度的基本步骤，且针对行业现有问题说明了新制度的优越性，提出可以选择性使用的作业成本法，最后阐释了新制度可能会对钢铁行业产生的影响和企业在面对新制度想要改善目前严峻形势必须用辩证的眼光看待这一现象，具体问题具体分析，对症下药才是关键。     

论海湾河口水环境治理制度建设的理论基石

通过对经济学与管理学的相关文献与理论的梳理分析,提出海湾河口水环境治理制度建设的四块理论基石:海岸带综合管理理论、湖泊流域水环境管理理论、环境产权理论、合作型环境治理理论,以期为建立海湾河口水环境治理制度体系提供理论依据和指导。     

清代诗人生卒年补考——以陆培等十位诗社成员为中心

以陆培等十位诗社成员为中心,从相关原始资料补充考订了清代诗人的生卒年及生平介绍,以期为日后编纂《全清诗》以及地方诗歌文献之类提供参考。     

Institutional failure or market failure?

We investigate the effect of the power of creditors, property rights protection, and institutional quality, on bank profits using a panel of 498 banks from 46 countries. Results show that better institutions and stronger property rights protection reduce bank profits, while stronger power of creditors drives up bank profits significantly. Results imply that better institutions and enhanced property rights protection lead to greater flow of credit allowing firms and investors to undertake more profitable ventures. By extension, stronger creditor rights erect steeper barriers to external finance for firms and investors. National indicators of economic freedoms may be more important to lowering the spread than strict creditor rights. Seemingly, credit markets fail when economic institutions fail or when governments intervene into these markets in ways that impede the safety and soundness of financial transactions and private contracting.     

Does Accrual Management Impair the Performance of Earnings‐Based Valuation Models?

This study examines how accrual manipulations affect firm valuation in the years surrounding the passage of the Sarbanes‐Oxley Act (SOX). We compare the absolute percentage pricing errors of RIM and DCF valuation models for a group of US firms suspected to have engaged in accrual manipulations to avoid a small loss or a small earnings decline vs. ‘Normal’ firms matched on industry, year and size. We find that RIM can better estimate intrinsic value than DCF for the matched Normal firms in the pre‐SOX period, but not so for accrual manipulators, and that SOX mitigates the harmful effect of accrual manipulations, completely eliminating the difference in RIM's accuracy advantage over DCF between Normal firms and accrual manipulators. As a further analysis, we redefine Suspect firms as real‐activity manipulators and find a significant across‐group difference in accuracy wedge in both sample periods, implying that SOX has prompted firms to favor real‐activity manipulations over accrual manipulations.     

Effect of Parental Migration on the Academic Performance of Left‐behind Middle School Students in Rural China

China's rapid development and urbanization over the past 30 years have caused large numbers of rural residents to migrate to urban areas in search of work. This has created a generation of children who remain behind in rural areas when their parents migrate for work. Previous research has found mixed impacts of parental migration on the educational achievement of left‐behind children (LBC), perhaps because of methodological deficiencies and lack of recognition of the heterogeneity of this population of children. Our study attempts to examine the impact of six types of parental migration on the academic achievement of a rural junior high school sample. Our study uses a panel of 7148 junior high school students to implement a difference‐in‐difference analysis and finds that parental migration has a negative and significant impact on the academic achievement of junior high school students. Our study suggests that the Chinese Government should implement measures to dismantle barriers to the human capital accumulation of LBC to ensure sustainable economic growth and human capital development in China.     

减税降费背景下小微企业财务管理研究

在减税降费背景之下,企业要想谋求长远发展,需要严格地遵守国家税务征收的相关政策,做好纳税申报以及税款缴纳。论文主要分析了减税降费政策的实施对小微企业的影响,阐述了减税降费背景下小微企业财务管理现存的问题,最后提出了有效的财务管理路径,为相关财务人员提供一定的理论参考。     

基于eCognition影像解译技术的风景环境 植被景观遥感量化研究 ——以云南鸡足山为例

世界遗产标准vii是UNESCO用以评价遗产地审美 价值的重要准则，由标准iii演化而来，从文化与自然美的混 合评价转向了仅对自然美学特征评价。选取以标准vii列入世 界遗产名录的145处项目(1978—2017年)，通过扎根理论 及分析，总结其运用特征、演化趋势和动因考辨。研究发现： 1)地区层面，不同地区运用标准vii所关注的审美价值具有差 异，如非洲关注色彩美学，欧洲和北美强调风景特质组合，亚 太地区重视强烈的自然文化关联、动态变化和组合关系，南美 和加勒比地区注重审美体验；2)词频运用层面，标准vii在各 地区的词频运用差异显著，各地区使用词频最高的为关于美的 “形容词”，除欧洲之外，其余地区代表“之最”特点的词频 次之；3)评价要点层面，欧洲和北美的风景特质评价具有很 强的特点与范式。最后解析了标准vii运用趋势与18世纪以来 的美学思想演变的内在联系；以期为标准vii的全球普世价值 与地区价值认知以及标准vii后续研究提供依据。     

Business model innovation in cultural and creative industries: Insights from three leading mobile gaming firms

This paper contains an exploratory analysis of the business model innovations (BMIs) that firms in cultural and creative industries (CCIs) undertake along their life-cycle. Despite the role that creative and cultural and creative firms (CCFs) have in the economic development of industrialised countries, they tend to remain small and often fail due to industry-specific constraints and tensions, such as the lack of managerial capabilities and complexity in nurturing value chain relationships. However, there has been relatively limited scholarly interest into the specific conditions and processes that enabled CCFs to overcome these liabilities, and in particular into the identification of the business models they have adopted along their life-cycle. In this paper, this issue is analysed by using the concept of BMI, which sheds light on how the reconfiguration of the activity system through which a CCF creates, delivers and captures value enables the exploitation of entrepreneurial opportunities over time. This paper builds on an in-depth historical study of three leading firms operating in the mobile gaming industry, namely Rovio, Zynga and King Digital Entertainment. Three main results emerge from this study. First, in the ramp-up phase of their life-cycle, CCFs organize their resource architecture to build a strong and recognized reputation. Second, in the development phase, BMI is used to leverage new distribution paradigms. Finally, in the maturity phase, firms dedicate resources to innovate their product portfolios by providing platforms that support the development and testing of new creative ideas and solutions. Findings and implications are then discussed.     

Shrinkage Estimation Strategies in Generalised Ridge Regression Models: Low/High-Dimension Regime

In this study, we suggest pretest and shrinkage methods based on the generalised ridge regression estimation that is suitable for both multicollinear and high-dimensional problems. We review and develop theoretical results for some of the shrinkage estimators. The relative performance of the shrinkage estimators to some penalty methods is compared and assessed by both simulation and real-data analysis. We show that the suggested methods can be accounted as good competitors to regularisation techniques, by means of a mean squared error of estimation and prediction error. A thorough comparison of pretest and shrinkage estimators based on the maximum likelihood method to the penalty methods. In this paper, we extend the comparison outlined in his work using the least squares method for the generalised ridge regression.