首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   29篇
  免费   6篇
财政金融   2篇
工业经济   2篇
计划管理   5篇
经济学   13篇
运输经济   5篇
贸易经济   6篇
农业经济   2篇
  2020年   1篇
  2019年   3篇
  2018年   1篇
  2017年   1篇
  2016年   4篇
  2015年   2篇
  2014年   1篇
  2013年   8篇
  2011年   1篇
  2010年   3篇
  2009年   1篇
  2008年   1篇
  2005年   1篇
  2004年   2篇
  2002年   1篇
  2000年   1篇
  1999年   1篇
  1995年   1篇
  1984年   1篇
排序方式: 共有35条查询结果,搜索用时 15 毫秒
21.
Functions and actors of inland ports: European and North American dynamics   总被引:1,自引:0,他引:1  
The emergence of inland ports took place in several regions around the world, notably where the growth of inland freight distribution required a massification of flows. Yet, there is no definitive consensus about how such inland facilities should be labeled, with terms such as dry ports being advocated. It is suggested in the paper that the term inland port is a more appropriate construct since it considers terminal activities as well as the crucial logistics activities taking place in co-location or in proximity of inland terminals. This perspective requires the investigation of how transport and supply chain functions and the various actors involved in their setting and operations are taking shape in inland ports. Case studies pertaining to European and North American inland ports are presented. Although inland ports are planned, set and operated by a wide variety of actors, ranging from public to private interests, transport and supply chain functions tend to label them as satellite terminals, load centers or transmodal centers.  相似文献   
22.
23.
This article characterizes the complementarity between exporting and investment in physical capital. We argue that new investment allows young exporters to grow faster and survive longer in export markets while reducing their vulnerability to productivity or demand shocks across markets. We structurally estimate our model using detailed firm‐level data. We find that the choice of cost structure has a large impact on model performance and the estimated costs of exporting or investment. Using detailed capital and output tariff rates, we quantify the impact of policy change on aggregate export and investment growth.  相似文献   
24.
The paper investigates the relationship between mission congruence and the reliance on incentives and delegation of decision making, using a dataset on 206 childcare centers. We find that mission congruence between childcare teachers and employers is negatively related to the likelihood of reliance on financial incentives and positively related to teacher autonomy. These results support the idea that worker preferences play an important role in the design of organizations.  相似文献   
25.
This article develops a model of heterogeneous firms that endogenously choose prices and product quality to build demand in export markets. New exporters optimally charge relatively low prices and produce low‐quality goods upon entry. Product quality, prices, and sales increase as demand grows. We structurally estimate model parameters using Chinese customs data. The estimated incentive to build future demand reduces average export prices by 0.7% and increases export sales by 4% upon entry. Endogenous demand accumulation causes estimated export prices, product quality, and sales to grow by 2.2%, 12%, and 79%, respectively, over the following five years.  相似文献   
26.
Ubiquity has been referred to as one of the most important characteristics of mobile services. In this study, an instrument for the measurement of perceived ubiquity reflecting the benefits derived from continuity, immediacy, portability, and searchability is developed using a multiple-stage approach. In the initial stage, perceived ubiquity is conceptualized through interdisciplinary perspectives as a multidimensional, 32-item eight-factor construct. In the second stage, the original measurement is pretested on a student sample and recalibrated into a 16-item four-factor instrument. In the third stage, general consumers are invited to complete a task in which they are asked to perform a search with a mobile device before rating the measurement items. A confirmatory factor analysis produces a 12-item four-factor instrument. Furthermore, a second-order structure results from a statistical comparison of alternative models through a competing model strategy. In the final stage, we use a scenario method to validate the measurement tool while establishing discriminant, nomological, and known-group validities. The thorough validation results demonstrate the value of our instrument as a measurement tool of perceived ubiquity that is useful in describing the unique nature of mobile devices and predicting differences in user perceptions of mobile services and desktop PC services. Theoretical and managerial implications are discussed, important limitations are recognized and future research directions are suggested.  相似文献   
27.
Globalization and the synchronization of transport terminals   总被引:1,自引:0,他引:1  
Globalization underlines higher levels of integration between different production and distribution systems. It is commonly acknowledged that this process leans on improvements of transport modes and infrastructure, resulting in a space/time collapse. However, it is argued in this paper that the synchronization of transport terminals is the main paradigm shift of the current space/time collapse. Terminals are where transport efficiency is mainly achieved. Empirical evidence is drawn from the strategies of freight and air transport companies.  相似文献   
28.
This paper presents a dynamic, heterogeneous firm model of investment in environmental abatement and exporting. The model highlights the interaction between firms' environmental investment and export decisions on the evolution of productivity and export demand in timber manufacturing industries. The model is structurally estimated using Indonesian timber manufacturing data that captures firm-level variation in environmental investment and export behavior. The results suggest that environmental abatement has little impact on productivity dynamics, but does encourage growth in export demand. Counterfactual experiments quantify the impact of policy change on trade and abatement decisions.  相似文献   
29.
The emergence of environmental governance practices raises a fundamental question as to whether they are substantive or symbolic. Toward that end, we analyze the relationship between a firm’s environmental governance and its environmental management as reflected in its ultimate outcome, environmental performance. We posit that substantive practices would bring changes in organizations, most notably in terms of improved environmental performance, whereas symbolic practices would portray organizations as environmentally committed without making meaningful changes to their operations. Focusing on a sample of environmentally sensitive firms, results are consistent with environmental governance mechanisms being predominantly part of a symbolic approach to manage stakeholder perceptions on environmental management, having little substantial impact on organizations. Statistical analyses show mostly that there is no relation between environmental governance mechanisms and environmental performance, measured in terms of regulatory compliance, pollution prevention, and environmental capital expenditures. However, there is some indication that environmental incentives are associated with pollution prevention. Interviews with corporate directors shed further light on these results by underlining that environmental governance mechanisms are employed at the board level to protect the organization from reputational and/or regulatory harm, but are not necessarily intended to proactively improve environmental performance.  相似文献   
30.
We show that the model stability of the recent QAR(1) plus Beta-t-EGARCH(1,1) is superior to that of the well-known ARMA(1,1) plus t-GARCH(1,1) because QAR plus Beta-t-EGARCH discounts extreme observations, while ARMA plus t-GARCH accentuates them. Model stability of QAR plus Beta-t-EGARCH is an elegant property; however, we show that the out-of-sample density forecast performance of ARMA plus t-GARCH is superior to that of QAR plus Beta-t-EGARCH. We study model stability and density forecast performance for a set of rolling data windows. We use data on the S&P 500 index for the period 1990–2015. For robustness analysis, we also study Monte Carlo simulations of asset returns for the stochastic volatility model.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号