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671.
We analyse optimal stopping when the economic environment changes because of learning. A primary application is optimal selling of an asset when demand is uncertain. The seller learns about the arrival rate of buyers. As time passes without a sale, the seller becomes more pessimistic about the arrival rate. When the arrival of buyers is not observed, the rate at which the seller revises her beliefs is affected by the price she sets. Learning leads to a higher posted price by the seller. When the seller does observe the arrival of buyers, she sets an even higher price.  相似文献   
672.
Patents encourage firms to undertake research and development by protecting innovator revenues from competition. Controls on pollution of the environment are intended to close the gap between the private and social costs of natural resource use. This paper examines the incentives that are created by the interaction of these two separate pieces of regulation. A model is developed that shows how an incumbent, patent-holding firm can take advantage of environmental regulation to exclude rivals from her market.  相似文献   
673.
Counterfactual conditional statements are ubiquitous in any scientific endeavour. This paper contains an analysis of the nature of counterfactual conditionals and the conditions under which they are considered assertable by scientists. The paper then applies this analysis to the use of counterfactuals in evolutionary economics, arguing that because evolutionary economics is inherently concerned with historical processes it cannot avoid the use of counterfactual history as one of its tools of empirical analysis. We discuss the strengths and pitfalls of counterfactual history. We argue that because evolutionary economics starts from the foundation that randomness may be inherent in any economic system, the very aspects of evolutionary economics that make counterfactual history a desirable empirical tool also make that tool difficult to employ. RID="*" ID="*" We thank the participants of the International Seminar on Evolutionary Economics as a Research Programme in Stockholm, May 1997, for many helpful comments. We also thank Lorri Baier for many helpful substantive and textual comments. Correspondence to: R. Cowan  相似文献   
674.
VALUING REDUCED RISKS TO CHILDREN: THE CASE OF BICYCLE SAFETY HELMETS   总被引:4,自引:0,他引:4  
The protection of children's health has recently become a mandated priority for federal policy makers. To assess many of the regulations that affect children's health, policy makers need estimates of the monetary value of reducing mortality risks to children. Although the economics literature has provided many estimates of the value of statistical life (VSL) for adult populations, it has provided none for school age children. This article studies the market for bicycle safety helmets and estimates for the first time a separate but comparable VSL for children and adults. We derive three estimates of VSL for each of three age categories (5 to 9, 10 to 14, and 20 to 59) that range from $1.1 to $4.0 million. In all cases, estimates for adults are highest, followed by estimates for the youngest children.  相似文献   
675.
This study examines those job and relationship characteristics that explain the positional embeddedness of individuals working in a multi‐organization project network. The analysis focuses differentially on three levels of relationship intensiveness: communication, coordination, and collaboration. Data were collected on the work relationships of 46 technical and administrative personnel involved in the Kuali Financial System, a community source software development project involving 12 organizations, 10 of which were colleges and universities, spread across the United States. Results were generally supportive of the hypotheses. Specifically, positional embeddedness was explained by characteristics of the project worker including the task performed, time spent on the task, and influence, as well as the ease of access to others. There was, however, little consistency in the explanatory power of these factors when comparing across levels of relationship intensity. Findings have implications for design of complex research and development projects that involve interactions across multiple organizations.  相似文献   
676.
Four real-life dilemma cases collected from Hong Kong managers were included, along with two other cases previously used by Weber (1991), in an instrument designed to assess ethical reasoning capacity. This was completed by 86 part-time post-graduate students, all of whom were managers with at least four years working experience. Respondents' measured ethical reasoning capacity appeared to be at least as high as comparable samples in the U.S.A. The mean ethical reasoning stage varied between cases. Contrary to expectations, the unfamiliarityper se of a case did not affect ethical reasoning which instead tended toward higher measured stages when issues of public hazard or environmental pollution were introduced, and toward lower measured stages where personal or family finances were at stake. Two methodological points were made signalling the need for caution in research of this kind. First, because of reservations about the adequacy of the standard Kohlbergian model of ethical reasoning development, a scoring guide based on a revised Kohlbergian model of ethical reasoning was used to analyze the replies, rendering comparisons with other samples inexact. Second, the possible phenomenon of quasi Stage Five reasoning renders problematic the identification of true Stage Five ethical reasoning.Robin Snell directs the M.B.A. at the City University of Hong Kong, where he is University Senior Lecturer. He has editedManagement Learning and has published articles inPersonnel Review on experiential learning, moral dilemmas and management development. His book,Developing Skills for Ethical Management, synthesizes these interests.  相似文献   
677.
678.
Outgoing Indonesian president Susilo Bambang Yudhoyono's second-term record is creditable, measured against the targets he set himself in 2010, but deficient in key areas: economic reform, infrastructure investment, and anti-corruption. Indonesia's 2009–14 parliament has been active in economic policymaking, and will leave as its legacy a raft of protectionist legislation. Both presidential candidates, Joko ‘Jokowi’ Widodo and Prabowo Subianto, have appealed to nationalism in their campaigns, calling for Indonesia to assert its sovereignty and increase its self-sufficiency, but Jokowi's economic platform is more moderate and economically literate than Prabowo's. The incoming president will inherit an economy that continues to slow. Growth is now not expected to approach 6% until 2015 at the earliest. Having engineered a reduction in the current account deficit, Indonesian policymakers now face the more difficult problem of structural fiscal adjustment. Energy subsidies are the most immediate problem, but fiscal reform more generally will emerge as an overriding and unpleasant imperative for whoever wins the presidential election on 9 July. Unless difficult fiscal policy measures are taken, Indonesia will face major trade-offs between deficit control and investment in social programs and economic infrastructure. The new president will struggle to restrict the deficit to the cap of 3% of GDP: a balanced budget will likely not be feasible for several years. He will need to increase the ratio of revenue to GDP and eliminate fuel subsidies—through a more systematic approach than the infrequent price increases of the past. He will need to choose carefully between competing expenditure priorities, such as infrastructure and defence. The new president would also be well advised to tread cautiously in implementing the legal mandates he will inherit, and to work with parliament to avoid further and unwind current earmarking of public expenditure.  相似文献   
679.
Unit specific effects are often used to estimate non-spatial efficiency. We extend such estimators to the case where there is spatial autoregressive dependence and introduce the concept of spillover efficiency. Intuitively, we present an approach to benchmark how successful units are at exporting and importing productive performance to and from other units.  相似文献   
680.
Multivariate models are developed to explain the differential occupancy performance of a sample of 279 English hotels. Following a procedure established in an earlier paper, hotels are first differentiated on the basis of their overall occupancy performance, seasonality, long‐term trend and length of season. Regression models are specified and calibrated to relate each of these dimensions of occupancy performance to the location and other characteristics of the hotels. The four models produce the expected positions of hotels in ‘occupancy performance space’, against which their observed positions can be compared. The application of the models in hotel marketing is discussed and demonstrated. Copyright © 2001 John Wiley & Sons, Ltd.  相似文献   
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