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361.
Consider an experiment involving the observation of a discrete random variable, or quantitative classification process. When, in addition to the probability of each value or class we know its “utility” (or, more precisely, we can quantify the “nature” of each value or class), the “uncertainty corresponding to the utilities” may be evaluated. In this paper, we are first going to introduce a family of Measures of Uncertainty involving Utilities and several properties of this family are studied. Then, some immediate applications are discussed: the definition of criteria for Comparing Experiments in Statistical Decision problems, and the quantification of the Inequality with respect to an economical attribute or the Industrial Concentration. Finally, we will analyze the asymptotic behaviour of the measures in simple random sampling, and some related problems. This work was partially supported by the Comisión Asesora de Investigación Científica Técnica (CAICYT) under the contract PB85-0401.  相似文献   
362.
A practical aggregation method for heterogeneous log‐linear functions is presented. Inequality measures are employed in the construction of a simple but exact aggregate representation of an economy. Three macroeconomic applications are discussed: the aggregation of the Lucas supply function, the time‐inconsistent behaviour of an egalitarian social planner facing heterogeneous discount rates, and the case of a simple heterogeneous growth model. In the latter application, aggregate CPS data is used to show that the slowdown that followed the first oil shock is worse than usually thought, and that the ‘new economy’ growth resurgence is not as strong as it appears.
363.
This article examines how gig economy platform companies, via algorithmic management, shape working conditions and collective organisation of food delivery couriers. Using qualitative data from one case study operating in a city in the United Kingdom, the study captures real-time intraplatform unilateral changes in algorithmic management to provide increased flexibility for couriers. Findings show algorithmic changes generating a reconfigured, fragmented and compliant workforce. As a result, couriers demonstrate different interests and motivations to work for the company, where disparities in the demands for improved working conditions hindered efforts for collective organising. This article argues that intraplatform algorithmic changes create affordances that companies can exploit to concentrate power over labour even when conceding some control over the labour process.  相似文献   
364.
Economic theory has proved that income redistribution in imperfectly competitive markets can increase social welfare and lead to Pareto-improving situations. This paper shows that, under certain assumptions, self-financing tax subsidy schemes can have Pareto-improving effects also in a competitive framework. This result is achieved by exploiting external economies of scale, resulting in a decrease in price along with an increase in output. The case of the vaccines industry and World Health Organization initiatives are examined to illustrate the theoretical analysis.  相似文献   
365.
This article is a step towards empirically assessing how close the Eurozone is to becoming an ‘optimal currency area’, as originally defined by Mundell ( 1961 ). For this purpose we have compiled ten indicators, organised them in four partial indices, and summarised them in an overall indicator of ‘optimality’. The resulting picture is mixed, with zone optimality not increasing when circumstances were favourable but the trend towards integration returning after the 2008–14 crisis. The suggestion is that disintegration during the crisis, rather than being evidence of failure of the Eurozone when the going was tough, showed a self‐healing mechanism at work. However, our measurements and indices show that optimality is much further away than it was in 1999, when the euro was launched.  相似文献   
366.
This study aimed to investigate how mass layoffs impact surviving employees in organizations. More specifically, this study ascertained the relationships between mass layoffs and employee work behaviors. It was theorized that mass layoffs will be negatively related to employee performance and organizational citizenship behaviors (OCB) through its relationships with job insecurity and psychological contract breach. Moreover, it was expected that perceived manager support would buffer against the negative relations of contract breach with employee performance and OCB. A study among 615 employees in multiple Chilean organizations showed support for the hypotheses: job insecurity and psychological contract breach mediated the relationships between mass layoffs and employee performance and OCB. We also found moderating relationships of manager support, but the relations of breach with performance and OCB were particularly negative when manager support was high, indicating feelings of betrayal among high-support employees in response to contract breach. Moreover, the relation of contract breach with performance was positive for low-support employees, and non-significant for high-support employees. Our study advances understanding of the processes underlying how mass layoffs influence employee behavior in the workplace, through introducing the psychological contract as a way of understanding the relationships.  相似文献   
367.
The purpose of International Financial Reporting Standards (IFRS), adopted mandatorily by European listed firms in 2005, is to increase the transparency and the comparability of accounting information, which should have led to improvements in these firms’ information environments. This study uses market microstructure proxies for information asymmetry to examine the effects of IFRS adoption on the level of information asymmetry in the Spanish stock market. Therefore, we consider a setting with substantial differences between local standards – Spanish Accounting Standards (SAS) ? and IFRS and where the level of enforcement is low. By controlling for conventional determinants of information asymmetry and firms’ characteristics that influence their information environments, we find a reduction of information asymmetry after IFRS adoption. Our findings suggest that the mandatory switch from local accounting standards to IFRS conveys benefits to the market, even when the enforcement level is not strong.  相似文献   
368.
While much attention has been devoted to information and communication technologies, a more fundamental change at the start of the new millennium is the increasing importance of innovation for economic prosperity and the emergence of a learning society. The analysis in this paper shows that innovation should be understood as a broad social and economic activity: it should transcend any specific technology, even if revolutionary, and should be tied to attitudes and behaviors oriented towards the exploitation of change by adding value.We build on the idea of inclusive learning, which entails a process of shared prosperity across the globe following local specific conditions, and argue that it is crucial to understand the features of knowledge-induced growth in rich countries, as well as the challenges and opportunities for late-industrialized and less-developed countries. To achieve these objectives, we emphasize the relative importance of infrastructures and incentives, but considering the increasingly important role of institutions towards the development of social capital. This is because learning societies will increasingly rely on “distributed knowledge bases” as a systematically coherent set of knowledge maintained across an economically and/or socially integrated set of agents and institutions.This broad concept has motivated the work behind the present paper, which builds on material presented at the 5th International Conference on Technology Policy and Innovation (ICTPI), which was held in Delft, The Netherlands, in June of 2001. Under the broad designation of “critical infrastructures,” the Conference brought together a range of experts to discuss technology, policy and management in a context much influenced by the dynamics of the process of knowledge accumulation, which drives learning societies. Thus, this special issue includes a set of extended contributions to the Delft conference, and the aim of this introductory paper is to set the stage for these contributions, with an original contribution on possible views on the role critical infrastructures play to foster innovation in the learning society.  相似文献   
369.
In this paper we analyse the bargaining regime wage-effect in Portugal. The results indicate that the bargaining regime coverage is important in explaining the variability of wages. Wage differentials between bargaining regimes are substantial, a fact which may be related to a decentralised wage setting which prevails in Portugal. The highest wages are generated by multi-firm negotiations and the lowest are generated by sectoral contracts. Single-firm contracts align at an intermediate level in the ranking.Received: April 2001, Accepted: May 2002, JEL Classification: J31Correspondence to: Pedro T. PereiraWe are very grateful to an anonymous referee. Financial support from program PRAXIS XXI under grant PRAXIS/2/2.1/CSH/781/95 and FEDER is acknowledged. The third author also acknowledges financial support from program PRAXIS XXI under grant BD/3486/94 and from the University of the Azores.  相似文献   
370.
This work presents the psychometric study of a questionnaire on participation in psychological therapy (QPPT). The study is applied to oncological patients and the questionnaire was designed to evaluate the reasons given by chronic patients when participating or not in programmes of psychological treatment. The questionnaire includes six rational areas which resulted from the confirmatory factorial analysis.The internal consistency of the scales was analysed through Cronbach’s Alpha, and their discriminatory capacity between criterion groups of oncological patients was tested by means of t-tests and discriminant analyses. The results support, to a reasonable extent, the reliability and validity of the QPPT as an instrument to evaluate the reasons of participation or refusal of psychological treatment in oncological patients.  相似文献   
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