基于遥感蒸散数据的农田灌溉水平评价和设施建设分区研究

[目的]利用遥感蒸散数据快速评价农田年度灌溉水平,及时获取基本农田建设成效,为农田灌溉设施分区建设提供参考。[方法]以黑龙江省海伦市为研究区,MOD16蒸散产品为数据源,计算有效灌溉量、灌溉需水量和作物缺水指数,分别对研究区2013年的旱地和水田灌溉水平进行评价,并将评价结果与农田水利设施作用分值图进行叠加分析,在此基础上进行基本农田灌溉设施建设分区。[结果]2013年海伦市耕地灌溉水平整体较高,区域间建设水平差别较大,可划分为4个级别。其中1级和2级灌溉水平的地块面积比例可达78.06%,地域分布上看,北部、西部、中部乡镇灌溉水平较高,东南部乡镇灌溉水平相对较低。叠加得出8种组合类型,分为设施修建型、设施提升型和设施维护型3种分区类型。[结论]研究为高标准农田建设提供了更详细的农田灌溉水平评价方法和更具差别化的农田灌溉设施建设策略。     

A continuous income-based grade gap decomposition on university course grades

The earnings premium for education, and higher education in particular, is well documented. This article examines the college achievement gap between students coming from positions of high and low socio-economic status. Other papers have also looked at this issue, often by employing, at least in part, an Oaxaca decomposition. Past papers artificially divided socio-economic status into binary groups of high and low, in order to employ the decomposition. Socio-economic status is innately a continuous variable. Therefore, we implement a continuous version of the Oaxaca decomposition. Higher socio-economic students are both slightly better prepared in terms of observable characteristics and have better returns to their characteristics than lower socio-economic students. Notable differences across results obtained from the binary and continuous decomposition methods are discussed.     

政策契合、资源整合与创业能力

当前，我国经济发展进入新常态，高层次科技人才成为区域经济发展中科技创新创业的生力军。高层次科技人才创业能力高低成为决定其创业成功与否的关键因素。运用扎根理论对3位高层次科技人才创业案例进行研究，最终构建了高层次科技人才创业能力提升路径理论模型。高层次科技人才创业可通过契合区级政府人才政策获取政策支持，将自身创业资源与政策资源有效整合，从而大幅提升自身创业能力。     

Is Abe's Fiscal Policy Ricardian? What Does the Fiscal Theory of Prices Mean for Japan?

The second arrow of Abenomics is flexible fiscal policy. However, it does not mean just fiscal stimulus as the Abe administration decided on the fiscal consolidation target of achieving a primary surplus by fiscal year 2020. Improving the primary balance implies making government debt more sustainable. Although the consumption tax rate was raised from 5% to 8% in April 2014, the Abe administration has decided twice to postpone increasing the consumption tax from 8% to 10%. In addition, a fiscal stimulus package was implemented. We use a Fiscal Stance Index to examine fiscal policy from the viewpoint of fiscal sustainability and a Markov switching model to examine fiscal policy from the viewpoint of the fiscal theory of the price level, and find that the Abe's fiscal stance is not Ricardian.     

Multiple product qualities in monopoly: Sailing the RMS Titanic into the economics classroom

In this pedagogical contribution the authors extend the traditional three-class tariff employed in the French passenger railway system with the more resonant story of the service quality variations associated with the three passenger classes of the ill-fated RMS Titanic. In doing so, they provide economics instructors with an opportunity to integrate the well-known motion picture Titanic (Cameron and Landau 1997 Cameron, J., and J. Landau. 1997. Titanic. Los Angeles: 20th Century Fox, Paramount Pictures, and Lightstorm Entertainment. [Google Scholar]) into the teaching of economics. This article provides instructors with resources that can be used to link historical and modern travel examples of price discrimination in order for students to reach a “deeper understanding of course concepts” (Salemi 2002 Salemi, M. K. 2002. An illustrated case for active learning. Southern Economic Journal 68 (3): 721–31.[Crossref], [Web of Science ®] , [Google Scholar], 725).     

Hotel school alumni’s intentions to use communication channels – a cross-generational comparison study

ABSTRACT

Alumni communication is vital in sustaining the relationship between alumni and their alma maters. This research investigated four cohorts of alumni, and their intentions to use a range of traditional and digital communication channels, including social media. An online questionnaire was sent to 8060 alumni and resulted in 595 usable responses, yielding a 7% response rate. The research results showed that alumni have the highest intentions to use the alumni e-newsletter and the alumni Website and the lowest intentions to use social media, e.g., Twitter, Instagram, and YouTube. Among alumni cohorts, significant statistical differences in their intentions to use these communication channels were identified. Given our findings, alumni communication staff are encouraged to leverage different communication channels targeting alumni in different age groups.     

Incorporating a Short-Term Study Abroad Service Trip for Educating International Entrepreneurship in the BOP Market

ABSTRACT

The bottom of the pyramid (BOP) market has gained importance in international entrepreneurship due to its large market potential. Drawing on the literature of international business education, as well as social entrepreneurship and international entrepreneurship education, we propose a course to educate students how to develop business intimacy with the BOP community. We employ the experiential-learning pedagogical framework and design elements including a short-term study abroad service trip, an entrepreneurship project, and structured reflections. Using both qualitative and quantitative data, we demonstrate that the course facilitates students’ learning in the key areas of international and social entrepreneurship, including the economic and social value of community embeddedness for BOP ventures, the emotional intelligence in interacting with BOP communities, and the attitude toward social entrepreneurship.     

The empowerment expectation–perception gap: An examination of three alternative models

Previous empowerment research has focused on subordinate perceptions of empowering leadership and its outcomes. Met‐expectations theory suggests that subordinate expectations of leader behaviours are essential in forming their a posteriori evaluations. To address the lack of investigation of individual expectations in the empowerment literature, in this study, we explore how subordinates' empowerment expectations and perceptions combine to influence their job satisfaction and psychological empowerment based on three alternative, theoretically derived met‐expectation models, namely, the disconfirmation model, the ideal‐point model, and the experiences‐only model. The results of a 2‐stage study of 114 respondents indicate that employees are more satisfied with their work when perceived empowerment exceeds expectations. However, both empowerment perceptions and expectations positively contribute to higher psychological empowerment. We then discuss implications and directions for future research.     

Understanding the motivation of museums,galleries and cultural exhibition visits – evidence from Taiwan internet use types

Are museums, galleries and cultural institutions (MGC) educational institutions or accommodations of leisure market? The aim of the present study is to understand why people visit MGCs through analysing a potential link between internet use types and MGC visits. Internet use is categorized into three types: independent activities, recreational activities and social activities. The empirical results indicate that internet use for recreational activities is negatively related to MGC visits, while internet use for independent activities is positively related to MGC visits. The findings suggest that MGCs are expected to provide visitors with educational experience rather than with social or recreational experience.