Coffee value chains on the move: Evidence in Ethiopia

Important changes have happened to the upstream segment of the coffee sector in Ethiopia - Africa’s biggest - in the last decade, as illustrated by the increasing adoption of improved production, harvest, and post-harvest practices. Upstream marketing has also improved and there have been large investments in processing capacity, shown by the extended coverage of wet mills. These improved practices are shown to be associated with positive impacts on coffee productivity and prices. Changes appear to be linked with multiple factors including local market reform, greater presence of public extension agents, high international prices, and a push for certification by international buyers. On the other hand, a combination of production (lack of improved seedlings, weather and disease shocks) as well as institutional issues (saving constraints and lack of vertical integration and traceability) have seemingly impeded more widespread uptake of improved practices and therefore better farm performance. The study illustrates the significant complexity in obtaining transformation at the farm level in these settings.     

Formal business process engineering based on graph grammars

Designing and managing a company's specific landscape and its business processes has been identified as a great challenge for several years. Business processes are highly dynamic and distributed and can only rarely be planned, modeled and analyzed completely. For a computer-aided business process system, which supports the designing and managing process, first of all a powerful uniform formalism is necessary, where all necessary knowledge concerning company's and its processes can be represented. In this paper we will concentrate on the introduction of such a formal methodology to describe business processes, company organization structures and information technology structures in one uniform formalism. The ideas we use are mainly based on methods from graph grammars, process management, Artificial Intelligence and business process (re)engineering.     

CEV模型的单位根检验研究

CEV模型（Constant Elasticity of Variance Model）作为常用的利率模型，在实证分析中得到了广泛运用，但是其单位根检验一直被忽略或者被默认可以使用迪基一富勒检验。本文首次运用Box—Cox变换的技巧，针对CEV模型的单位根检验问题，找到了合适的统计量并且证明其渐进分布存在，然后通过蒙特卡罗方法求出了该统计量的分布表。得到了在大样本的情形下可以沿用迪基一富勒检验，但在小样本的情形下与迪基一富勒检验有所偏差的结论。     

从《中华人民共和国物权法(草案)》谈城乡规划及其管理观念的转变

城乡规划代表公共利益,物权法保护物权人的合法权益;城乡规划及其管理代表一种调整和规范土地及地上建筑物等不动产物权的设立、行使的公共行政权力,物权法赋予了物权人对其不动产相关物权享有直接支配、排他性干涉的权力;在城乡规划及其管理工作方面,如何平衡上述两种权力?本文从城乡规划及其管理的主要环节--编制、实施、监督检查、批后管理四方面做出了阐释.     

数字化转型与企业人力资本升级

企业在数字化转型过程中是否会增加对高技能劳动力的需求,进而优化企业的人力资本结构？基于2013-2020年中国A股上市公司员工雇佣数据,本文对上述问题进行考察并分析其作用渠道。结果显示,数字化转型显著提升了企业本科及以上学历员工的占比,即优化了企业的人力资本结构,且该效应在低融资约束企业、非技术密集型行业和东部地区更为明显。作用机制检验证实,数字化转型显著增加了企业的固定资产投资和研发投资,扩大了企业经营规模,进而促使企业增加对高技能劳动力的需求。进一步研究发现,数字化转型显著提升了企业经营效率,同时增加了高管和普通员工的工资。上述结论表明,企业数字化转型具有技能偏向性特征,有助于企业劳动力结构转型升级。本文研究对数字经济背景下深入理解企业劳动力结构升级变化具有一定参考意义。     

建立健全内部审计制度的思考

本文从建立健全企业内部控制制度入手，分析了内控与内审的关系；其次，从分析我国内审现状着手，陈述了内审现状不容乐观；最后，在具体如何强化方面，主要涉及内审的职能转变、结构模式的转变、人员素质的提高及多元化、与外部审计的结合，事后审计向事前事中审计的转变及向行业管理转变建立内审职业规范等措施。     

浅谈政府职能转变与社会主义新农村建设

党的十六届五中全会做出的建设社会主义新农村的伟大战略决策，为解决“三农”问题指明了道路，为全面建设小康社会提出了具体任务。社会主义新农村建设主导在政府。只有进一步转变政府管理理念，完善政府行为方式，提高政府行政能力，才能为社会主义新农村建设提供有力的政治保障和动力支持。     

中国国有银行改革的理论与实践问题

当前对国有银行改革的讨论应立足于其初始条件,国有独资银行与商业银行不相容,国有银行具有特殊的职能边界———金融支持国家经济增长;在我国特定的历史阶段,国有银行改革应遵循两种截然相异的路径:完全的股份制或国有独资,而国有控股将导致较高的道德风险;机构利益的独立性并非国有银行的专有问题,通过激励机制设计应该保持国有独资银行的利益从属于中央政府的经济金融政策;国有银行的分支机构和人力资源在不同的改革思路下会具有“历史包袱”和“历史财富”的或然双重性质,关键在于能否从时间序列上观察银行绩效;银行改革成本只能是因支持经济增长和经济体制改革所付出的代价,这一代价的跨期承担优于即期摊销。     

经济发展方式转型与经济软实力空间分布关联研究——以河南18个省辖市区域为例

经济软实力是决定经济发展方式转型的关键因子,经济软、硬实力的不同配置决定经济发展方式类型。经济软实力不仅内在具有推动经济发展方式转型的能力,而且还具有实现其转型的内在机理。通过河南省区域经济软实力空间分布及其与区域发展指数关联的实证分析,证明以提升经济软实力促进区域经济发展方式转变是经济发展的一种必然规律。     

Journeys of well-being: Women's travel narratives of transformation and self-discovery in Italy

Travel narratives can shape tourist imaginings about places, and are a useful tool for understanding tourist experiences. One long-standing media trope is the transformative potential of travel to Italy, especially for women. In this qualitative phenomenological study, contemporary non-fiction books written by women about their travel experiences in Italy were analysed, using well-being as a theoretical framework. Six well-being dimensions were found to be present in these narratives, with the first five reflecting the dimensions of the DRAMMA model of triggers promoting well-being in leisure, alongside an additional dimension drawn from the PERMA model of well-being. Both hedonic and eudaimonic forms of well-being were mentioned. Identity, in terms of self-discovery and reinventing oneself, underpinned a number of these dimensions. The study extends work on travel imaginings beyond the fictional literary or film context and has practical implications for the promotion of destinations and marketing tourism as an avenue towards well-being.