Platform market competition with endogenous side decisions

This paper develops a framework to analyze platform competition in two‐sided markets in which agents endogenously decide on which side of a platform to join. We characterize the equilibrium pricing structure and perform a comparative statics analysis on how the distribution of agents’ preferences affects the platforms’ profits. We also show that the market equilibrium under profit‐maximizing platforms leads to the first best social surplus, which illustrates the importance of the price mechanism to induce more balanced participation across the two sides. This framework can be applied to analyze market competition for “rental” or “sharing” platforms. In addition, we extend our analysis to consider an initial investment stage, which makes participants the owner of some durable goods to rent out.     

Tourist Motives and Destination Competitiveness: A Gap Analysis Perspective

This study explores the use of gap analysis in examining the demand-side and supply-side perceptions of international tourists’ motives for visiting Botswana, along with Botswana’s competitiveness as a tourist destination. Statistically significant negative gaps between tourists and tourism providers’ perceptions mean that further understanding of tourists by providers is necessary to enhance the destination’s competitiveness. The analysis of findings was based on 14 “pull” motivations adapted from Kozak (2002) and 104 destination competitiveness measures, some of which were adapted from Omerzel (2006). Factor analysis, reliability analysis, and a series of independent t-tests were used to analyze the data. Study results indicate that tourists visit Botswana mainly for pleasure seeking rather than culture. The study further reveals that Botswana’s competitiveness as a destination is average. Furthermore, the study found statistically significant differences between tourists and tourism providers on all of the “push” factors and nine of the 15 destination competitiveness factors. In order for Botswana to be globally competitive, there is need for further improvement with a view to match international tourists’ expectations. Particular attention should be directed at improving the way the destination is managed. Further developments should be made on created resources, safety, demand conditions, historical and cultural heritage resources, organized excursions, and cleanliness.     

Commitment and leisure behavior: A theoretical perspective

Abstract

The concept of commitment has been indirectly linked to a variety of topical areas in leisure research. The purpose of this paper is to identify and critique links between commitment and leisure behavior and to identify and discuss the attributes of committed behavior. The contribution of integrating the concept of commitment into research regarding conflict, substitution, recreation specialization, and leisure social worlds is identified and discussed. Tentative propositions linking commitment to leisure behavior are identified. Recommendations are made for the future operationalization of commitment, and its potential contribution to integrating leisure is discussed.     

建设海峡西岸经济区构建对外开放新通道

构建新的对外开放综合通道。建设海峡西岸经济区是关系福建未来发展的一项重大决策。构建新的对外开放综合通道，进一步明确了海峡西岸经济区的功能定位，进一步凸显了福建在促进祖国统一大业中的独特作用。建设新的对外开放综合通道。需要长期坚持不懈的努力，需要充分发挥协作区的作用，关键靠建立健全区域协调互动机制。     

煤电链边际碳排放的演化情景估算

煤电污染历来深受关注。对于用电终端单位电能需求对煤电厂的边际发电量和碳排放量的影响,通过设定煤电技术、电网线损率、厂用电率等因素在不同碳约束条件下的演化情景,估算用电终端引致的煤电链边际碳排放数值的演化趋势,对比发现采用低碳情景或强化低碳情景下的煤电管制技术是电力低碳化发展的必然选择。     

海峡西岸经济区人口资源环境可持续发展研究

人口资源环境可持续发展是全面繁荣海峡西岸经济区的重要保证,海西实施人口资源环境可持续发展已有一定基础,但仍面临人口的持续增长、环境污染仍较为严重、能源短缺等问题。人口资源环境协调发展,应是21世纪海峡西岸经济区经济社会发展的主题,主要可从控制人口数量、强化环境综合整治、发展循环经济、转变经济增长方式等措施全面推进海峡西岸经济区全面、协调、可持续发展。     

装载机装运机构改进设计

全液压蟹爪式装煤机的侧取耙装机构与刮板运输机串联工作,共用一套传动装置,但不能适应作业现场实际需要。为此,重新设计装运机构,将装载与运输机构设计为联动机构,让其既可各自独立运转,也可根据需要联合作业,同步工作。2套独立的动力装置能够保证2个机构可靠运转。     

取料机控制缆信号传输无线改造

黄骅港取料机控制信号的传输方式通过电缆卷筒拖动控制电缆的方式,由于取料机作业量大,行走频繁致使控制电缆出现损坏,故障率高,维修费用和备件费用投入较多的实际问题。将控制信号通过无线模块进行传输,运行可靠,免维护,节省维修和备件费用,有效地保证了设备运行安全可靠,提高了生产效率。     

基于供给侧的承包经营权抵押贷款需求与可获性研究——以常州市武进区为例

以全国农村改革试验区的新型农业经营主体作为研究对象,以多项Probit模型估计作为主要研究方法,对承包经营权抵押贷款需求与可获性的影响因素、存在联系进行分析。研究结果表明：目前的农地承包经营权抵押贷款存在着处于制度探索阶段的内部微观供求结构错位和外部宏观供求平衡特征的小范围均衡。无论是需求还是可获性都受经营者教育水平、家庭年总收入和土地规模的影响,人们可以从这三方面入手进一步实现需求与可获性的均衡。最后,基于供给侧结构性改革思路为经营权抵押的改革试验提出了针对性的政策建议。     

预应力锚杆格梁加固不良地质地段路堑边坡

文章详细介绍了预应力锚杆格梁加固不良地质地段路堑高边坡施工技术在龙丽高速公路松阳段(K90+640-+840)段的具体应用情况,阐述了预应力锚杆格梁加固路堑高边坡的施工控制要点。