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31.
中国自然保护地历经60余年的发展,形成了多部门主导、保护类型多样的自然保护地体系。面对机构改革和以国家公园为主体的自然保护地体系建立的契机,传统规划的经验积累为新规划体系的构建提供了借鉴的可能。通过回溯机构改革前各类自然保护地规划,对比分析其规划结构体系,并从人地关系视角切入,分析各类规划针对保护对象、保护利用强度,以及社会发展调控上的差异,总结各类自然保护地规划的既有经验,为新时期规划体系的重构提供支撑。  相似文献   
32.
为满足联合作战条件下信息系统对资源数据灵活组合应用的需求,从作战资源视角出发,聚焦资源的关系特征维度,开展了资源与资源、资源与功能的关系特性分析,确定了各类关系的概念内涵、基本属性及关系特征要素集的组成,同时研究了资源视角关系特征的表征方法,并针对资源能力溯源及资源能力认知等展开了关系特征模型应用分析。通过资源视角关系特性分析与建模,可提高信息系统对资源的快速组织和应用能力,为从事军事资源联合运筹与信息系统研制提供参考。  相似文献   
33.
选择"一带一路"沿线18个省域生产性服务业与技术或资本密集型装备制造业动态互动关系为研究对象,运用向量自回归(VAR)模型进行4个细分服务业和装备制造业脉冲响应比较研究,探究其双向互促性、行业异质性及长短期差异性。结果表明:二者虽然有长期均衡关系,但是互促作用具有非对称性。装备制造业对生产性服务业发展的总体拉动力强劲。但无论辅助联动式或价值链嵌入式生产性服务,都只是短期助推装备制造业发展,仍难以构成高端服务能力和发挥显著的规模经济效应,其长期匹配及推动作用较小。长期以来,装备制造业对知识密集型服务业需求程度不高,导致装备制造业对其拉动作用不明显,二者互动关联性较弱。不同互动机理及动态匹配方式下细分服务业与装备制造业互动效应差异性显著。装备制造业来自于自身内部的信息变动影响显著。应加强装备制造业创新投资引资、提升装备制造业产业集群创新竞争力、促使生产性服务业高质量发展、提高高层次人才培养引进效率,以促进沿线省域两大产业高层级耦合互动发展。  相似文献   
34.
This study investigates the value added by incorporating textual data into customer churn prediction (CCP) models. It extends the previous literature by benchmarking convolutional neural networks (CNNs) against current best practices for analyzing textual data in CCP, and, using real life data from a European financial services provider, validates a framework that explains how textual data can be incorporated in a predictive model. First, the results confirm previous research showing that the inclusion of textual data in a CCP model improves its predictive performance. Second, CNNs outperform current best practices for text mining in CCP. Third, textual data are an important source of data for CCP, but unstructured textual data alone cannot create churn prediction models that are competitive with models that use traditional structured data. A calculation of the additional profit obtained from a customer retention campaign through the inclusion of textual information can be used by practitioners directly to help them make more informed decisions on whether to invest in text mining.  相似文献   
35.
The conventional argument that the introduction of transfer of development rights (TDR) shifts the power of land use regulation from the state to the market is increasingly under challenge. In China, the state's grip on land is reinforced through TDR, in which the state is both regulator and player. This state-dominated form of TDR affects China in three ways. First, competing aspirations of different scales of government complicate how TDR is implemented. Although the central state promotes TDR to maintain a national balance of arable land, some local states instrumentalize it to expand their landed basis of accumulation. Secondly, TDR tends to benefit the state but not its people. It may increase the fiscal income of the sending government and lessen the land shortage of the receiving government, but sometimes at the expense of the interests of land users without land ownership. Thirdly, given the state's deep involvement in TDR programs, the key for China's TDR to protect arable land lies not so much in clear property rights or a fully fledged market as in effective checks and balances regarding the state's powers over TDR. These three observations attest to the embeddedness of TDR in the local political economy.  相似文献   
36.
A common premise in prior research is that trust increases over time in relationships. Through a meta‐analysis of 39 studies, we find that the bivariate correlation between trust and relationship duration (1) is on average positive and small, and (2) varies significantly across studies indicating the presence of unobserved moderators. We therefore build a theoretical framework to specify four different mechanisms—initial bias correction, change in relationship value, identification, and trust‐based selection—that may affect the development of trust. We then argue that the relative strength of these mechanisms should influence whether trust increases, remains constant, or decreases over time. © 2013 The Authors. Strategic Management Journal published by John Wiley & Sons Ltd.  相似文献   
37.
This article reviews the past and potential future roles of land tenure reforms and land markets in Sub-Saharan Africa (SSA) as responses to population growth in the process of land use intensification and livelihood transformation. The farm size distribution and the existence of an inverse relationship (IR) between farm size and land productivity in SSA and the implications of this relationship for efficiency and equity are investigated. More secure property rights and removal of restrictions on land markets have the potential to create both efficiency and equity benefits, but there are high risks of elite capture of large land areas with inefficient and inequitable outcomes. This situation is the case not only in land-abundant areas but also in urban and peri-urban areas where increasingly larger proportions of people will make their living. Increasing population pressure in densely populated rural areas contributes to more rapid rural–urban migration, and creating alternative livelihood opportunities for the migrating youth population is essential to achieving economic development with social stability.  相似文献   
38.
Building on the argument put forward by North and Wallis (1994) that the transaction sector enables economic growth by lowering the costs of transacting, we investigate how internationalizing firms’ host and home country bank relationships affect their international specific investments and growth. Banks provide payment, liquidity, and risk management services, which are essential to international business relationships, yet little is known about how banks affect international business relationships. In a sample of 255 small and medium-sized enterprises (SMEs), we find that host and home country bank relationships affect the dependent variables differently. We contribute to the literature by explicating the role and effects of banks in international business relationships. Our findings have implications for understanding transaction services in international business as well as the choices made by their customers.  相似文献   
39.
Purpose: The main objective is to test and assess a research model through time and across contexts in which satisfaction is a mediator between quality constructs in manufacturer–supplier relationships. Satisfaction is positioned as a mediator between trust and commitment (i.e., causes) on the one hand, and cooperation, coordination and continuity expectancy (i.e., outcomes) on the other. The objective is also to provide a substantiation and contribution through time and across contexts, to business theory of supplier-manufacturer relationships

Methodology/approach: One out of eight samples selected for additional empirical substantiation for this study comprises a total of 600 small and medium-sized Spanish enterprises from various industrial sectors. A total of 259 usable questionnaires were returned, generating a response rate of 43.2%. The study is positioned (and compared) in relation to seven other samples that have been tested within the same research model in Canada, Finland, Norway (twice), South Africa, Sweden, and Taiwan. The total number of useable questionnaires is 1641, the average number of useable questionnaires per study is 205 and the average response rate is 37.4% in the studies assessed of this article.

Findings: The research model tested and assessed in the eight studies meets the requirements for satisfactory convergent, discriminant and nomological validity, as well as for construct reliability. The measurement and structural metrics support validity and reliability over time and across contexts, which is rare in marketing research.

Research implications: The theoretical framework contributes, through time and across contexts, to the business theory of supplier–manufacturer relationships. The tested research model demonstrates properties of validity and reliability across countries and company sizes. Implications and suggestions for further research are provided.

Practical implications: The empirical findings indicate key factors that contribute to satisfaction in manufacturer–supplier relationships in different countries and companies.

Originality/value: The article makes a contribution to theory relating to supplier–manufacturer relationships, providing evidence that the tested, hypothesized relationships are generally applicable. The validation or falsification of empirical findings in previous research is crucial in building valid and reliable theory over time and across contexts. Otherwise, theory becomes fragmented and undermines the credibility of marketing research.  相似文献   

40.
本研究梳理了社区与社区银行的概念,通过对14组代表性定义的内容分析和编码发现传统社区银行的实质就是中小型商业银行。社区隐含了社区银行的覆盖范围、服务对象和业务特征,其服务对象没有实质差别。研究提出了社区银行的四个维度和特征,分别是银行规模、覆盖范围、服务对象和业务种类。监管机构和美国提出者更关注银行规模,而研究者特别是中国研究者更重视覆盖范围。因此,“地理范围论”和“资产规模论”基本成立,而“国别论”理论差别不大,“所有制论”和“形态论”并不成立。通过案例研究和实地调研归纳出社区银行的三种主要模式:即美国的“关系信贷”、澳大利亚的“特许经营”和中国的“金融生态”模式。其中,“特许经营”模式变相扩大了银行规模和覆盖范围两个维度,而“金融生态”模式扩展和丰富了银行规模、覆盖范围和业务种类。最后,结合发达国家的先进经验,有针对性地提出四点建议,并构建了中国社区银行建设的特征与要素模型。  相似文献   
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