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   151篇
  免费   8篇
财政金融   12篇
工业经济   10篇
计划管理   30篇
经济学   65篇
运输经济   3篇
旅游经济   6篇
贸易经济   17篇
农业经济   9篇
经济概况   7篇
  2024年   1篇
  2023年   1篇
  2022年   2篇
  2021年   4篇
  2020年   4篇
  2019年   8篇
  2018年   9篇
  2017年   5篇
  2016年   6篇
  2015年   4篇
  2014年   9篇
  2013年   21篇
  2012年   8篇
  2011年   14篇
  2010年   9篇
  2009年   3篇
  2008年   3篇
  2007年   7篇
  2006年   7篇
  2005年   4篇
  2004年   6篇
  2003年   5篇
  2002年   5篇
  2000年   3篇
  1999年   2篇
  1998年   1篇
  1996年   1篇
  1995年   1篇
  1993年   2篇
  1988年   1篇
  1986年   1篇
  1981年   1篇
  1979年   1篇
排序方式: 共有159条查询结果,搜索用时 484 毫秒
131.
In an estate division problem an estate has to be divided among several players whose total entitlement to the estate exceeds its size. This paper extends the non-cooperative approach through a claim game, as initiated by O?Neill (1982), by allowing players to put multiple claims on the same part of the estate, and by considering the case where individual entitlements may exceed the estate. A full characterization of the set of Nash equilibria of the claim game is obtained both for restricted estate division problems, where individual entitlements do not exceed the estate, and for the general case. Variations on the claim game are considered, which result in proportional division in equilibrium.  相似文献   
132.
This paper quantitatively analyses the cost‐effectiveness of alternative green payment policies designed to achieve a targeted level of pollution control by heterogeneous microunits. These green payment policies include cost‐share subsidies that share the fixed costs of adoption of a conservation technology and/or input reduction subsidies to reduce the use of a polluting input. The paper shows that unlike a pollution tax that achieves abatement through three mechanisms, a negative extensive margin effect, a negative intensive margin effect and a technology switching effect, a cost‐share subsidy and an input reduction subsidy are much more restricted in the types of incentives they provide for conservation of polluting inputs and adoption of a conservation technology to control pollution. Moreover, they may lead to varying levels of expansion of land under production. Costs of abatement with alternative policies and implications for production and government payments are compared using a simulation model for controlling drainage from irrigated cotton production in California, with drip irrigation as a conservation technology.  相似文献   
133.
Short term forecasting was applied to 20 emerging technologies under the “Machine and Materials” category based on the Vision 2023 foresight study previously conducted for Turkey. This scientometric approach uses the most suitable keywords linked to the technology in question and determines the number of publications and patents in those fields for a given year. Database analysis of publications and patents in the previous 11 years indicates that while the majority of the top 20 technologies identified by the experts are indeed emerging (i.e. the number of research and/or patenting in these technologies is increasing), some of them have not actually attracted too much interest in the science and technology (S&T) community. Forecasts based on S-curves indicate steady growth in some of the selected technologies. There is a high correlation between the number of scientific publications and patents in most of the technologies investigated. The method is proposed as a simple and efficient tool to link national foresight efforts to international S&T activities and to obtain quantitative information for prioritized technologies that could be used for technology management and decision making for research funding and technology investment.  相似文献   
134.
Social and technological efficiency of patent systems   总被引:1,自引:0,他引:1  
This article develops an evolutionary model of industry dynamics in order to carry out a richer theoretical analysis of the consequences of a stronger patent system. The first results obtained in our article are rather consistent with the anti-patent arguments and do not favor the case for a stronger patent system: higher social welfare and technical progress are observed in our model in industries with milder patent systems (lower patent height and patent life).  相似文献   
135.
Institutional investors play a prominent role in today's markets. Quarterly reported portfolio holdings make it possible to evaluate the risk-adjusted equity investment performance of all institutional investors in the United States during 1981–2002. The results indicate that institutional investors have been successful in managing client assets; they have added significant value by generating excess returns after controlling for underlying portfolio risk factors. Style choice is the main factor in determining overall portfolio performance, but institutional investors also displayed significant stock selection skills during the period. The stocks they choose for their portfolios have outperformed the stocks they exclude.  相似文献   
136.
This paper investigates, in a unified framework, the effects of sibship size, birth order and sibling sex composition on children's school enrolment in urban Turkey. We utilize an instrumental variable estimation method to address parents’ joint fertility and schooling decisions using twin births as instruments. We find no causal impact of sibship size on school enrolment. However, there is evidence for a parabolic impact of birth order where middle‐born children fare worse. Sex composition of siblings matters only for female children. Our finding that birth order and sibling sex composition matter more for poorer households suggests that scarce financial resources play an important role in bringing about the sibling composition effects.  相似文献   
137.
This study shows the persistent differences in evolution of firms when they are grouped according to their trade orientation as: two‐way traders (both importing and exporting), “exporters‐only”, “importers‐only”, and nontraders. Extending the existing models of firm evolution into an open economy setup by incorporating the importing decision, a simple model is presented and it is empirically shown that: (i) globally engaged firms are larger, more productive, and grow faster than nontraders; (ii) two‐way traders are the fastest growing and most innovative group who are followed by exporter‐only firms; and (iii) estimating the export premium without controlling for import status is likely to overestimate the actual value by capturing the import premium. Robustness of the results is shown by providing evidence from the panel data constructed from the original dataset and controlling for variables that are likely to affect firm evolution.  相似文献   
138.
Identifying the effect of differential taxation on portfolio allocation requires exogenous variation in marginal tax rates. Marginal tax rates vary with income, but income surely affects portfolio choice directly. In systems of individual taxation – like Canada's – couples with the same household income can face different effective tax rates on capital income when labor income is distributed differently within households. Using this source of variation we find portfolio responses to taxation among more affluent households. The estimated effects are statistically significant but economically modest. In a “placebo” test, using data from the U.S. (which has joint taxation), we find no effect of the intra-household distribution of labor income on portfolios.  相似文献   
139.
Research Summary: What drives middle managers to search for new strategic initiatives and champion them to top management? This behavior—labeled divergent strategic behavior—spawns emergent strategies and thereby provides one of the essential ingredients of strategic renewal. We conceptualize divergent strategic behavior as a response to performance feedback. Data from 123 senior middle managers overseeing 21 multi‐country organizations (MCOs) of a Fortune 500 firm point to social performance comparisons rather than historical comparisons in driving divergent strategic behavior. Moreover, managers’ organizational identification affects whether they attend to organizational‐ or individual‐level feedback. These results contribute to research on performance aspirations and strategy process by providing a multilevel, multidimensional framework of performance aspirations in middle management driven strategic renewal. Managerial Summary: Middle managers are essential actors in strategic renewal. Their unique positions offer insights into operations alongside knowledge of strategy. In contrast to typical assessments of managerial performance with reference to a prior year, this research shows that performance comparisons relative to peers and other organizational units better motivate managers’ divergent strategic behavior. Our results also show that managers who identify with the firm are more attentive to organizational rather than individual performance discrepancies. Thus, our study unveils an important approach for organizations aiming to spark strategic renewal.  相似文献   
140.
This study inquires the possible creation of a sense of a place in coffee houses for the disabled people as public places. The physical characteristics of a space are the main factors allowing all people including the disabled ones as well to perceive that place properly and within the “person, place and interaction process” framework. The place attachment, which can be defined as the main emotional bond between space and the users, is heavily influenced by the individualistic experiences and reactions whether they are ordinary or differently abled. In order to initiate a place attachment, spaces should be designed in a way that they respect the occupant’s perception, feelings, memories, senses and their physical abilities to enable them to develop a sense of belonging and ownership. Therefore, creating designs which foster people’s construction process of sense of a place that comprises the concept of identity and sense of belonging, is among the essential issues for realizing place attachment in architecture and design of public spaces. In our contemporary world, there are settings that possess these qualities; contrariwise there are more architectural and urban spaces which ignore these qualities and their benefits for people, especially for the disabled ones. Relatedly, a building should offer people enough information for perceiving it and with its physical features should also support the experiences that occur in it. There is a strong link between memorable events and the space where those events occur. An environment which provides outstanding and meaningful ambiance by its architectural characteristics can establish a sense of a place. Disabled people often have less opportunities to experience the spaces properly compared to others because their limitations are not taken into consideration when designing the public spaces. Therefore, the design process of public spaces should involve the basic needs of disabled people. In order to propose a typology for traditional coffee houses, this research aims to define and discuss the place attachment experience of disabled people in public spaces. The study begins with an overview of identifying different types of disabilities and special needs, and an introductory discussion of how space attachment can help to meet those needs. Therefore, the physical, social and typological aspects of traditional coffee houses were evaluated in terms of location, space organization and functions by considering the profiles of disabled users. Methodologically, this is a case study, which has a mixed research design including qualitative and quantitative research instruments.  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