All that glitters is not gold: Do movie quality and contents influence box-office revenues in China?

Economic policy reform that started in China in early 1980s also affected its movie industry. Like other sectors, movie industry is also not fully liberalized. The industry is required to ensure that movie contents are consistent with core socialist and cultural values and locally produced movies are also financially viable. However, cultural and politically motivated regulation can adversely affect box-office revenues. Using a recently available dataset, which covers the period of 2009–2018, we investigate the box-office performance of Chinese domestic movies. We start by examining the role of movie quality signals (such as star power, internet media evaluation and industry recognition) in our empirical analysis of the relationship between family-friendly content of movies and box-office revenues. We then match the movie contents with its financial performance records. Our novel approach reveals that the explicit sex and profanity in movies have a negative and statistically significant impact on box-office revenues, which confirms the role of cultural values in financial success of motion pictures in China. However, in the case of large-budget movies involving celebrity superstars, the violent and gore (graphic violence) content attracts viewers and hence the box-office revenue increases. Our work highlights the contradictory nature of China’s movie industry policy, which binds the industry to strict cultural and politically motivated regulation while insisting on financial success.     

“一带一路”背景下我国对外石油投资探析

在我国企业对“一带一路”沿线国家的投资中，石油一直是一个重要的领域。我国石油企业的主体是国有企业，其对外石油投资具有一定的特殊性和复杂性。在我国石油企业的对外投资中，就驱动因素而言，既有企业的内在需要，又有国家的政治需要，国家利益与企业利益存在一致性；在区位选择时，资源国石油储量的丰裕程度和品位优劣是首要的影响因素，同时当地的政治社会环境也是重要的考量因素；在布局过程中，我国石油企业要接受政府的引导，且其所有权优势、区位优势、内部化优势的形成也离不开政策支持。我国石油企业要充分利用这些优势，积极扩大与“一带一路”沿线国家的石油投资合作，在实现企业利益的过程中促进国家利益和企业利益的耦合。     

Protectionism and real wage rigidity: A discussion of the macroeconomic literature

The paper discusses the macroeconomic literature on the relationship between real wage rigidity and the case for protectionism. First, it gives an account of the analytical arguments that lie behind the protectionist position of the Cambridge Economic Policy Group (CEPG). Then, it provides a critical appraisal of the model of the CEPG; the discussion is focused on its supply side, on the role it assigns to financial markets as well as on the issue of retaliation. Finally, the paper considers and evaluates the subsequent work by Eichengreen, which incorporates aggregate supply and wealth effects into the CEPG analysis.     

拓扑度理论中一个引理的改进

本文对文献（１）的一个引理进行了改进，从而推知拓扑度理论具有严密的逻辑性。     

灰神仙鱼（Petrophyllum eimeki C et v）染色体组型的研究

本文以鳃为材料，用ＰＨＡ腹腔注射秋水仙，空气干燥制片法制作染色体玻片标本，Ｇｉｅｍｓａ染色，对灰神仙鱼的染色体组型作了分析。其二倍体染色体数目２ｎ＝４８，染色体可分为四组；Ａ组：中部着丝粒染色体１对；Ｂ组：近中部着丝粒染色体５对；Ｃ组：近端着丝粒染色体２对；Ｄ组：端部着丝粒染色体１６对，ＮＦ＝６０。组型分析中出现异型染色体，并对其分类位置进行了讨论。     

计算机《高级语言程序设计》课程教学改革的探讨

本文针对信息管理专业和电子商务专业《高级语言程序设计》课程教学中存在的一些问题,提出了对教学进行改革的多条具体措施,并对改革效果进行了分析,最后指出了进一步探讨的问题。     

RS(15,9)码的TMS320C25算法实现

介绍了用ＴＭＳ３２０Ｃ２５芯片实现ＲＳ码编、译码的方法及一些关键问题，对编、译码器的算法选择、伽罗华域元素的表示与运算作了详细的讨论。经过设计与调试，编、译码器的速度达到了５５０组／秒，相当于１９．８ｋｂ／ｓ的信息速率，已能满足大部分中、低数据传输的要求。     

Running hard and falling behind: a welfare analysis of two-earner families

This paper investigates the commonly asserted proposition that long term economic changes have put the family in a financial bind. Structural parameters of a family utility model are obtained by estimating simultaneous labor supply functions for a two-earner household. We find evidence indicating that the average 1990‘s two-earner family would prefer to receive the 1980‘s real wage package (were it available) instead of the real wage package it actually faces. The degree to which the 1990‘s family is worse off (in terms of the changes in the real wage package) is roughly equivalent to an hour of leisure per week. Received September 25, 1995 / Accepted February 5, 1997     

隐性知识在产品概念设计中的应用

工业设计领域中,提高产品的设计质量是利益最大化的首要途径,而产品概念设计直接决定产品设计质量,而隐 性知识为产品概念创新设计提供了新的思路,因此,提出一种关于隐性知识应用于产品概念设计中的方法。在理解隐性 知识概念的前提下,从产品出发,挖掘隐藏在产品中的隐性知识,将这些隐性知识显性化,用人们容易理解、接受的知识 进行表达,便于被重新利用。通过收集大量的产品隐性知识,建立产品隐性知识库,借助案例推理( case-based reasoning, CBR)技术,运用相似度计算法,获取知识库中与目标设计要求相似度最大的案例,将其作为目标设计或作参考,直接运 用于新产品的开发中。结果表明,该方法不仅能缩短产品设计周期,而且能大大提高产品的质量。本研究为企业迅速抢 占市场,赢得市场份额具有一定意义。     

小型CO2热泵系统的搭建与性能研究

天然工质CO2以其优良的热物理性能和友好的环境特性成为热泵系统中运行工质最有潜力的替代物之一。为了加快CO2作为制冷剂向实用化产品迈进,采用CO2作为制冷剂,确定了跨临界C02热泵系统方案及工况,对气体冷却器、蒸发器及辅助部件进行了选型设计,并最终搭建了一个带回热器的跨临界C02热泵系统实验台,该试验台结构紧凑,制造、运行成本较低。同时文章中就冷却水、冷冻水对系统性能的影响做了初步研究。研究表明：提高冷冻水流量对提高热泵出水温度的影响很小;提高冷却水流量可以有效提高能效比EEER,并对制取高温热水有很大帮助,但是同时会增加流动阻力。