Sin sectors and negative screening

In this research, I analyse how exposure to sin sectors impacts the financial performance of socially responsible (SR) funds. I also analyse the question of whether or not these funds keep their word and are less exposed to the controversial sectors that they claim to exclude in their prospectuses. Additionally, I analyse how local political and religious factors exert an influence on the exposure of SR funds to sin sectors. Consequently, I analyse a sample comprising 136 SR mutual funds that were domiciled in the U.S. market in the period March 2017–April 2020 and who invest in domestic and global equity, of which 92 implement negative screens on at least 1 of 12 controversial activities. My results show that for seven (three) of the controversial sectors that were analysed, the exposure of SR funds to these sectors jeopardises (improves) their financial performance. Furthermore, SR mutual funds who perform negative screens tend to live up to their name and are less exposed to the sector/s that they claim to exclude. In addition, SR mutual funds managed by companies located in Democrat-leaning states are less exposed to sin sectors, and that the effect of local religiosity depends on the specific sector analysed.     

李嘉图的经济增长思想述评

本文论述了李嘉图关于经济增长的主要思想,指出了李嘉图经济增长思想的积极意义     

Fees for Reefs: Economic Instruments to Protect Mexico’s Marine Natural Areas

Stated preference methods can be used to estimate the demand function where no price variation has been observed before. This is the situation of the Mexican coral reef natural protected areas, where after the 2002 approval of a $20 pesos fee (US$1.80) the Ministry of the Environment is now considering increasing the amount of the fee, not only to raise more revenue for the park, but also to curb the number of visitors in the cases where there is excess demand. There are concerns that the very success of the reefs is bringing associated environmental damage that threatens its sustainable use. To estimate the reaction of visitors to different fee levels, we carried out a contingent valuation survey, and constructed with its results an aggregate demand for each park. This demand was then divided by seasons and nationalities, to explore the benefits and costs of differentiating fees, looking at both the revenue maximising and the welfare maximising fees. Finally we discuss how these fees would change when environmental damage functions are taken into account. The recommendation is that increasing fees up to the point where they cover both private and environmental costs would bring the highest amount of economic benefit compatible with the sustainable use of these complex and wondrous marine ecosystems.     

论旅游线路的文化品味提升:基于非物质文化遗产的视角——以珠三角为例

通过广州、深圳、佛山、东莞和中山五城市旅游线路的调查,非物质文化遗产作为一种较高级别的旅游资源未得到旅行社的足够重视。针对国内旅游线路缺乏创新,欠缺文化内涵的现状,对旅行社的旅游线路进行改造,融入非物质文化遗产的项目,旨在通过提升线路文化品味的同时促进非物质文化遗产的传承和发展。     

浙江省城市居民中等收入的界定及分析

界定中等收入群体的关键在于确定中等收入的范围和比重,但目前对该问题没有十分有效的定量方法。文章以浙江省为例,确定了浙江城市居民中等收入的范围,运用正态分布原理预测2010年中等收入群体的比重将达到32．9％,最后提出了扩大中等收入群体比重的一些措施。     

农村居民多维收入流动、税费负担及政策效应——基于面板数据PSM-DID方法的研究

收入流动性是从动态视角衡量居民收入分配公平与否的重要指标,其变动程度受到税收等因素的影响。文章基于2001年至2014年季度和年度面板数据,依据多维收入流动指标,测算出了地区之间农村居民绝对和相对收入流动程度,并利用双重差分倾向得分匹配法（PSM-DID）和工具变量估计法研究了农村税费改革及其他经济社会因素对农村居民收入流动性的影响。研究发现：（1）农村税费改革的政策效应非常显著,实施农业税费减免政策的地区,其农民的绝对收入流动性显著高于未改革地区;（2）税费负担对绝对收入流动性的影响呈现出"倒U型"特征,即当税费负担率为0.167%时,绝对收入流动性达到最大值,若进一步增加税费负担,收入流动性则呈现下降趋势;（3）税费支出变动对相对收入流动性的影响也通过了5%的显著性检验;（4）农村劳动力文化结构、工资收入比重等家庭特征因素对收入流动性的影响具有较大的地区异质性。有鉴于此,在进一步完善税费征收项目监管的同时,依据家庭及地区特征实施差异化的支农惠农政策,切实减轻农民负担,增强农村居民收入流动,实现地区间收入分配均衡。     

细旦涤纶混纺毛织物服用性能研究

细旦涤纶与毛混纺织物的服用性能较常规毛／涤织物,明显地表现出良好的刚柔性、悬垂性、耐磨性、透气性和断裂强力及伸长,但折皱性及抗起毛起球性能较差。     

碳税的社会福利效应分析

碳税是减少碳排放的一种重要手段。碳税开征与否的一个主要争论在于：征收碳税是否会加大收入差距。在制定碳税政策时,需要考虑碳税实施后对收入分配产生负面影响的可能性,权衡公平目标与二氧化碳减排效果,在体现社会公平的前提下实现节能减排的目的。     

垄断竞争市场下的中国银行卡产业收单费定价研究

通过全面综述银行卡产业的主要定价理论以及国内研究现状,本文首次对中国银行卡产业收单市场的收单费定价问题进行规范性研究.在放松收单市场完全竞争的假定下,结合经济学效用函数理论思想,运用双边市场理论,通过建立统一定价与差别定价模型,研究如何定价能使效用最大化.研究表明:在收单费定价时,不仅应该根据成本原则调整收单费在扣率的比例,而且要细分不同的行业类别、卡基支付工具、经济区域以及消费习惯观念等影响因子,从而实现收单市场的效用最大化.     

Packs,Troops and Herds: Prosocial Cooperatives and Innovation in the New Normal

Prosocial organizations are emerging to tackle the effects of a New Normal. As they navigate its fragile and liquid institutional membranes, they prioritize cooperative forms of governance. These forms allow for collaboration and democratic decision-making necessary for the development of innovative solutions in this new context. At the same time, the high coordination costs of cooperatives lead to significant market pressures. Therefore, understanding when and under what conditions these new cooperatives innovate and strive is important as it provides insight into whether and how these ventures can become a viable alternative in this changing landscape. Using configurational analyses of organizational enablers leading to innovation in 40 entrepreneurial cooperatives, we identify three approaches: Attentive Pack, Eclectic Troop, and Wandering Herd, showing that innovative outcomes can indeed emerge under traditional cooperative features emphasizing collectivism. However, the pursuit of higher novelty requires a shift to more individualistic, business-as-usual, approaches. The New Normal does indeed enhance entrepreneurial activity, but of a different kind comprising novel sets of antecedents and outcomes, which we show can easily become the new dominant form of venturing required in this new context.