What constitutes a constitutional amendment culture?

Why are some constitutions amended frequently and others hardly at all? An obvious candidate determinant is constitutional rigidity, i.e., the size and number of procedural barriers to amendment. Given some demand for amendment, greater rigidity implies a smaller supply. However, measures of rigidity often do not correlate significantly (or even with the predicted sign) with amendment rates. Ginsburg and Melton (2015) argue that amendment culture – “shared attitudes about the desirability of amendment” – is a more important determinant of amendment rates. We study up to 128 constitutional episodes from 54 countries and estimate relationships between amendment rates and Hofstede cultural indices. Cultures that are more individualistic and less prone to uncertainty avoidance are associated with higher amendment rates. When cultural dimensions are controlled for, the lagged amendment rate (Ginsburg and Melton’s proxy for culture) is not a robust correlate.     

农村新业态发展现状、问题与对策研究

近年来,农村新业态快速发展,成为农村经济发展的新动能。文章在介绍农村新业态发展现状的基础上,剖析了当前存在的顶层设计不清晰、要素制约突出、水平有待提升以及规范化不足等系列问题;结合乡村振兴战略全面实施带来的新机遇,提出要强化顶层设计、优化发展环境、加快转型提质、加大监管力度等政策建议,加快促进农村新业态健康有序发展。     

政府投资工程总承包项目设计优化认定与收益归属研究

工程总承包模式以设计与施工的高度融合,日益在建筑业受到青睐。但由于政府投资项目中存在有关结余资金上缴国库等规定,容易导致政府投资工程总承包项目下设计优化产生的成果是进行分成或作为结余资金上缴界定不清。鉴于此,本文通过政策文件,并结合政府投资项目特点,分析政府投资工程总承包项目设计优化的情形认定以及在不同结算依据和合同计价方式下设计优化收益归属的界定,为有效激励总承包单位积极进行设计优化奠定基础。     

乡村森林旅游项目规划中哲学元素运用的个案分析——以宜春市月都花溪谷项目为例

以江西省宜春市"月都花溪谷"乡村森林旅游项目规划中哲学元素的应用为个案,结合哲学理论进行分析。结果表明:乡村森林旅游项目规划应有哲学的自觉,根据项目所在地自然和人文资源禀赋,因地制宜地吸收哲学元素,从而打破乡村森林旅游项目同质化和见物不见人的困局,赋予乡村森林旅游项目以特色和灵魂。因此,提出突破森林旅游项目规划中一元化的经济思维定势、以哲学思维唤起人学意义、因地制宜激发内生式哲学文化活性等启发性建议。     

Digital hostages: Leveraging ransomware attacks in cyberspace

Global institutions face costly infrastructure disruption from cyberthreats such as ransomware attacks. The global threat of ransomware attacks has continued to increase over time. Although it is important to conduct a cost-benefit evaluation and to weigh the risks prior to engaging, a new emerging option of dealing with ransomware attacks should be considered. I outline an interdisciplinary approach to cybernegotiation combining features of online dispute resolution and terrorist hostage theory. In this novel cyber-based dispute system design, the Wade and seek method is the application of traditional hostage negotiation theory used to help businesses mitigate the costs of ransomware attacks.     

山东省生态用地变化及驱动因素影响评价

［目的］研究第二次土地利用现状调查以来山东省生态用地变化特点及驱动因素，评价各类驱动因素对生态用地的影响程度，为科学编制区域空间规划，保护和合理利用生态用地提供参考。［方法］文章构建了全省生态用地转移矩阵，归纳了影响生态因素变化的主要驱动因素，提出了驱动力指数计算方法，定量分析和比对了各驱动因素对生态用地的影响。［结果］2009—2017年生态用地共计转出2048万hm2，占生态用地总面积的472%； 转入316万hm2，占生态用地总面积的072%。8年来全省生态用地净减少1732万hm2，占2009年生态用地总面积的400%。生态用地的流向以耕地最多，向城镇村及工矿用地流出次之，向设施农用地的流出也有较大面积。［结论］（1）在影响生态用地变化的六大驱动因素中，耕地开发和城镇村工矿占用的驱动力指数最高，非耕农业占用对生态用地的变化有一定影响。（2）六大因素中城镇村工矿占用对当地生态环境的破坏力最强。     

区域森林公园生态效率实证分析——以华东地区为例

采用Malmquist-Luenberger指数法对华东地区森林公园生态效率值进行测定的结果表明:从时序范围看,2011—2016年华东地区森林公园生态效率的均值为1. 006,但从2015年起进入下滑态势,说明华东地区森林公园的生态效率已经达到有效水平,但在扩大森林公园规模的同时忽视了对环境的有效保护以及资源的合理配置;从空间差异角度看,只有浙江与安徽两省的森林公园生态效率值未达到有效水平(分别为0. 851和0. 871),其余各省(市)的森林公园生态效率值均大于1,说明区域内存在一定的差异性;技术进步指数下降是制约MalmquistLuenberger指数提升的主要原因。由此可见,加大技术投入,促成交流合作机制,形成特有的竞争优势等,对提高区域森林公园生态效率是十分重要的。     

干旱区内陆河流域未利用地开发生态风险评价及预测*——以开都河流域为例

[目的]探析开都河流域在未利用地开发过程中生态风险指数的变化特征,为西北干旱区内陆河流域土地利用结构调整与生态保护修复协调发展提供建议。[方法]文章采用PSR模型构建基于14个指标框架的流域未利用地开发生态风险评价指标体系;通过测度综合生态风险指数法进行时空视角的特征变化与格局划分评价;并运用灰色预测模型前瞻性模糊预测该区域未来4年的生态风险变化态势。[结果]2009—2016年开都河流域未利用地开发生态风险整体呈波动上升趋势,生态风险程度由较低下降至低生态风险水平,随后上升至一般程度。这是因为土地开发利用对生态环境造成压力,但在政府相应生态保护政策的出台落实下又逐步缓解,生态系统结构和功能好转明显,抵御风险能力得以提升。预测结果显示2017—2020年开都河流域生态风险将由一般生态风险程度上升至较高程度,因此需要采取适当的管理措施来消减生态风险发生的可能性。[结论]开都河流域作为沙漠中典型的绿洲生态系统,生态环境较为脆弱,通过未利用地的差别化开发、鼓励零星分散的开发模式以及细分不同地类开发的生态补偿设置等方式路径,以期缓解降低干旱区内陆河流域未利用地开发带来的生态风险。     

Fairness perception of ancillary fees: Industry differences and communication strategies

This study examines fairness perception of ancillary fees across different industries, and ways to communicate ancillary fees in a way that reduces customers' feeling that they are being unfairly treated. Through surveys and consumer experiments, we show that consumers’ perception of fairness decreases as the level of ancillary fees increases, with differences across industries. Also, when the customer is given a cue that the ancillary fees are necessary for low base prices, fairness perception increases, explained by the “dual entitlement” concept. Another effective communication strategy is early disclosure, as opposed to late disclosure which decreases fairness perception and willingness to recommend.     

An empirical examination of the effects of design elements of email newsletters on consumers’ email responses and their purchase

In this research, we empirically explore the effects of various design elements of email newsletters on consumers' email responses and their purchases. We capture the consumers' email responses using three metrics, namely email open, email click, and email reopen. We operationalize consumers' purchases as their spending on product items that are featured in email newsletters. Using a novel email marketing database, first, we model the influence of design elements of email newsletter on consumers' email responses at the individual consumer level. The email design elements constitute several email attributes, situational factors, and integrated marketing communication. Second, we quantify the effects of these three email responses, open, click, and reopen, on consumers' purchases. Our empirical results suggest a significant influence of email attributes, situational factors, and marketing communications on consumers' email responses. Furthermore, among open, click, and reopen, we find clicks tend to have the highest impact on consumers’ purchase, followed by email reopening and opening. However, email newsletters with higher opening probability are more effective in influencing purchases than those email newsletters with higher reopening probability. Furthermore, consumers who indulge in all three email responses, namely opening, clicking, and reopening, tend to purchase the most. Results from our study offer several critical insights for email marketing strategy helping managers improving the effectiveness of email campaigns by careful consideration for the design elements of email newsletters.