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   240篇
  免费   11篇
财政金融   75篇
工业经济   6篇
计划管理   40篇
经济学   49篇
运输经济   1篇
旅游经济   1篇
贸易经济   35篇
农业经济   14篇
经济概况   30篇
  2023年   2篇
  2022年   1篇
  2021年   2篇
  2020年   4篇
  2019年   7篇
  2018年   6篇
  2017年   4篇
  2016年   7篇
  2015年   8篇
  2014年   6篇
  2013年   32篇
  2012年   12篇
  2011年   17篇
  2010年   12篇
  2009年   11篇
  2008年   19篇
  2007年   18篇
  2006年   10篇
  2005年   10篇
  2004年   6篇
  2003年   8篇
  2002年   6篇
  2001年   6篇
  2000年   3篇
  1999年   2篇
  1998年   3篇
  1997年   2篇
  1996年   3篇
  1995年   1篇
  1994年   1篇
  1992年   2篇
  1991年   1篇
  1990年   1篇
  1989年   2篇
  1988年   3篇
  1987年   1篇
  1986年   1篇
  1985年   2篇
  1984年   1篇
  1983年   2篇
  1982年   1篇
  1981年   3篇
  1979年   1篇
  1974年   1篇
排序方式: 共有251条查询结果,搜索用时 31 毫秒
11.
This study develops a content analysis framework that provides information on the comprehensiveness of corporate social responsibility (CSR) reporting, an important aspect of social and environmental accountability. Comprehensive reporting, as defined here, requires three types of information for each disclosed CSR item: (i) vision and goals, (ii) management approach, and (iii) performance indicators. The feasibility of the framework to assess the comprehensiveness of CSR reporting is demonstrated using the 2005 annual reports of a sample of publicly traded Belgian companies. The content analysis reveals a low level of comprehensive reporting. This finding complements those of prior studies on the completeness of CSR reporting and, therefore, feeds the debate regarding the extent to which CSR reporting can be considered a mechanism for discharging social and environmental accountability.  相似文献   
12.
We study the money flows into and out of socially responsible investment (SRI) funds around the world. In their investment decisions, investors in SRI funds may be more concerned with ethical or social issues than with fund performance. Therefore, SRI money flows are less related to past fund returns. Ethical money is less sensitive to past negative returns than are conventional fund flows, especially when SRI funds primarily use negative or Sin/Ethical screens. Social attributes of SRI funds weaken the relation between money inflows and past positive returns. However, money flows into funds with environmental screens are more sensitive to past positive returns than are conventional fund flows. Stock picking based on in-house SRI research increases the money flows. These results give evidence on the role of nonfinancial attributes, which induce heterogeneity of investor clienteles within SRI funds. We find no evidence of a smart money effect, as the funds that receive more inflows neither outperform nor underperform their benchmarks or conventional funds.  相似文献   
13.
This paper proposes to give a toll to help decision makers in critical situations. The principle of our research is based on a modelling approach for Cooperative Knowledge Based Systems. This approach is based on a Task/Method paradigm that we describe. We then propose to take into account collateral effects of tasks in order to support decision makers in a critical context. The proposed tool can then generate a degraded solution for which, collateral effects of previous tasks have been taken as new goals to reach. This study is possible thanks to the definition of several kinds of models: a Good Functioning Model and a Degraded Tasks Library.  相似文献   
14.
For years, policymakers, business leaders, human resources professionals, and economists have attempted to explain the existence of unemployment. Unemployment inhibits the economic growth of a nation and contributes to the problem of ongoing poverty, which cannot be lessened without that growth. Understanding the causes of unemployment and developing policies and programs to decrease it are vitally important for nations around the world, but one key variable in the study of unemployment has been overlooked. That variable is culture. This article will show that culture can significantly explain cross‐national differences in unemployment rates and offers a link to understanding the global problem of poverty that plagues nations today. © 2012 Wiley Periodicals, Inc.  相似文献   
15.
We model the dynamic volatility and correlation structure of electricity futures of the European Energy Exchange index. We use a new multiplicative dynamic conditional correlation (mDCC) model to separate long‐run from short‐run components. We allow for smooth changes in the unconditional volatilities and correlations through a multiplicative component that we estimate nonparametrically. For the short‐run dynamics, we use a GJR‐GARCH model for the conditional variances and augmented DCC models for the conditional correlations. We also introduce exogenous variables to account for congestion and delivery date effects in short‐term conditional variances. We find different correlation dynamics for long‐ and short‐term contracts and the new model achieves higher forecasting performance compared \to a standard DCC model. Copyright © 2012 John Wiley & Sons, Ltd.  相似文献   
16.
Abstract

In this paper the results are presented of a national survey on playground safety in The Netherlands. Thirteen trained inspectors each inspected 51 playgrounds in their own region. In total, 663 playgrounds with 7150 pieces of playground equipment were subjected to an inspection. The following safety criteria were inspected: entanglement, surfacing material, installation and maintenance aspects. The results show that one out of every three pieces of playground equipment fail on one or more criteria. The number of pieces of equipment that fail in playgrounds operated by local authorities or recreational companies is higher than that in playgrounds operated by voluntary associations. The smaller the playground the higher the number of failures per piece of equipment

The time has come for experts to provide the operators with information which will improve the safety level. More funding should be provided for the local authorities to prevent the occurrence of accidents.  相似文献   
17.
Academic literature recognizes that firms in different countries deal with corporate social responsibility (CSR) in different ways. Because of this, analysts presume that variations in national-institutional arrangements affect CSR practices. Literature, however, lacks specificity in determining, first, what parts of national political-economic configurations actually affect CSR practices; second, the precise aspects of CSR affected by national-institutional variables; third, how causal mechanisms between national-institutional framework variables and aspects of CSR practices work. Because of this the literature is not able to address to what extent CSR practices are affected by either global or national policies, discourses and economic pressures; and to what extent CSR evolves as either an alternative to or an extension of national-institutional arrangements. This article proposes an alternative approach that focuses on an exploration of links between disaggregated variables, which can then be the basis for imagining new national-institutional configurations affecting aspects of CSR. It illustrates this approach with an exploration of the importance of development aid policy for CSR practices in global supply chains.  相似文献   
18.
The paper examines empirically, using a measure of “vertical fiscal imbalances” (VFI), the relationship between overall fiscal performance and the financing structure of subnational governments. It presents stylized facts regarding the size, evolution, and components of measured VFI using data from 28 OECD countries. On average, the general government fiscal balance is found to improve by 1 percent of GDP for each 10 percentage point reduction in VFI.  相似文献   
19.
International comparisons indicate that, on average, Belgian companies spend less on training than their French, German and Dutch counterparts. Encouraging companies to commit to training has consequently been an important policy goal over the last few years. One notable aspect of the policy to encourage training efforts by companies is that the effort is always represented in terms of the resources invested (input), not in terms of the learning achieved (output) or the quality of training programmes (throughput). Government policy is aimed at increasing the level of investment in company training. One of the questions we wish to investigate is whether this input-oriented approach to the training issue is actually effective. Whether companies will succeed in raising human capital to ever-increasing levels may depend not only (and maybe not even chiefly) on the extent of financial investment in training. The investment level does not necessarily determine the quality of the training processes developed by companies. Therefore, this paper focuses on the following research questions: (1) to what extent do companies monitor the systematic development of sufficiently effective training processes? In other words, is qualitative under-investment an issue, alongside financial under-investment? (2) Is the level of financial investment in company training correlated to the quality of training processes? The empirical data confirm that a kind of 'qualitative' under-investment can be reported and that the relationship between the level of investment in training and the quality of the training programmes is weak.  相似文献   
20.
The majority of South Africans living in rural areas are food insecure despite high levels of national food self-sufficiency. The household food security position of two groups of rural farming households in the Venda region was evaluated quantitatively: one group produces vegetables that are sold or consumed locally, the other group produces cash crops – mangoes and other subtropical fruits. Using the collected data, food availability and energy, protein and fat requirements were calculated and balances derived. It was found that more than 80 per cent of the households had a negative balance of energy, protein and fat intake. The average energy, protein and fat coverage consumption was the same for both groups of farmers. A number of agricultural determinants were tested, but only non-agricultural determinants were found to be significant. These include household size, household (food) expenditure and proportion of the budget spent on food.  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