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1.
Tymon Słoczyński 《Oxford bulletin of economics and statistics》2015,77(4):588-604
In this paper I use the National Supported Work (NSW) data to examine the finite‐sample performance of the Oaxaca–Blinder unexplained component as an estimator of the population average treatment effect on the treated (PATT). Precisely, I follow sample and variable selections from Dehejia and Wahba (1999), and conclude that Oaxaca–Blinder performs better than any of the estimators in this influential paper, provided that overlap is imposed. As a robustness check, I consider alternative sample (Smith and Todd, 2005) and variable (Abadie and Imbens, 2011) selections, and present a simulation study which is also based on the NSW data. 相似文献
2.
Kozłowski Maciej Pawełczyk Marek Piotrowska-Piątek Agnieszka 《Quality and Quantity》2020,54(5-6):1691-1703
Quality & Quantity - The article discusses the issue of innovation activities of companies in railway transport in Poland in the context of the development of tourism. Transport infrastructure... 相似文献
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5.
Szymon Marcińczak Michael Gentile Samuel Rufat Liviu Chelcea 《International journal of urban and regional research》2014,38(4):1399-1417
Scholars have raised concerns about the social costs of the transition from state socialism to capitalism in Central and Eastern Europe, and geographers are particularly interested in the spatial expressions and implications of these costs, including apparently increasing residential segregation. Applying a range of segregation measures to 1992 and 2002 census data, this contribution studies socio‐occupational residential segregation in Bucharest. The conclusion is that Bucharest was relatively socio‐spatially mixed at both times; in fact, a modest, yet fully legible, decreasing overall trend is observable. This is at odds with many popular assumptions of the past 20 years. 相似文献
6.
Čierna Helena Sujová Erika Hąbek Patrycja Horská Elena Kapsdorferová Zuzana 《Quality and Quantity》2017,51(3):1305-1320
Quality & Quantity - For an organization to develop, to improve, and to innovate in this information age, it requires a management system that will maximize use of human potential that it has... 相似文献
7.
Piotr Jasiński 《Intereconomics》1998,33(1):30-40
Partial privatisation, in which a more or less large number of residul shareholdings remain in the hands of the state, is
a widespread phenomenon in the countries of Central and Eastern Europe. The following paper compares experiences in Poland
with those of the UK, where there has been extensive privatistion of public utilities in the last 20 years, and concludes
with some policy recommendations for the transforming countries.
The original version of this paper was commissioned by the OECD and presented at its workshop on Management and Sale of Residual
Shareholdings, Berlin, Germany, May 1996. 相似文献
8.
After Poland’s accession to the EU, the Polish-Russian border became the EU external border. This significantly changed its nature and started the new type of cross border relation. Since 2012, when the Small Border Traffic (SBT) zone came into force, the border has changed its blockade function and started instead to be treated as a resource. The fundamental loosening of the border crossing regime reduced the social and functional distance between Poland and Kaliningrad, and in a broader sense between EU and Kaliningrad. This paper will try to show how small but meaningful initiative, the SBT, has had an impact on cross-border region. The present paper will describe the relationship between larger geopolitical actors and how they affect local border relations. The aim of this paper is to present phenomenon of new visa regime at the Polish-Russian border. The paper likewise describes the impact of the SBT on local communities and their economies, as well as national relations between adjacent countries. The analysis is based on the interviews and surveys conducted in the Polish-Russian border region in late 2014. 相似文献
9.
Empirica - The main goal of the paper is to analyse one-dimensional, isolated impact of particular variables which are used in the literature as explanatory variables for risk premium following... 相似文献
10.
Angelika Więckol-Ryk Alicja Krzemień Paweł Zawartka Marcin Głodniok 《Process Safety Progress》2020,39(1):e12089
The article presents application of hazard and operability study (HAZOP) technique to identify and analyze hazards associated with the process of producing fertilizer granulates from sewage sludge. The aim was to indicate deviations from the proper performance of the system, which may occur at the operation stage of the installation for granulating sewage sludge, and, as a consequence, lead to interrupting the process. The hazards, that is, dangerous and harmful factors, which may generate dangerous events, were meticulously identified. Thanks to that, it was possible to propose preventive actions aimed at reducing risk at the stage of designing an installation. The research showed that producing fertilizer granulates from sewage sludge may generate an explosion hazard when dust and gases during the process of transportation or storage are present. Gases responsible for explosions such as NH3, H2S, CH4 are by-products of the reaction of sewage sludge with the lime, while explosive dust consists of a microcrystalline cellulose powder. A few scenarios leading to epidemiological risk are associated with the composition of badly stabilized sewage sludge. Additionally, the material corrosion resulting from wrongly selected material and aggressive environment, were also identified. The HAZOP results were used to conduct process hazard assessment, which analyzed frequency of hazards in given technology nodes and categories of their potential consequences. 相似文献