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   5083篇
  免费   152篇
  国内免费   7篇
财政金融   961篇
工业经济   431篇
计划管理   828篇
经济学   969篇
综合类   210篇
运输经济   64篇
旅游经济   105篇
贸易经济   885篇
农业经济   257篇
经济概况   527篇
邮电经济   5篇
  2023年   24篇
  2022年   47篇
  2021年   86篇
  2020年   112篇
  2019年   128篇
  2018年   114篇
  2017年   134篇
  2016年   135篇
  2015年   96篇
  2014年   154篇
  2013年   594篇
  2012年   290篇
  2011年   297篇
  2010年   249篇
  2009年   229篇
  2008年   252篇
  2007年   229篇
  2006年   218篇
  2005年   167篇
  2004年   106篇
  2003年   91篇
  2002年   115篇
  2001年   95篇
  2000年   76篇
  1999年   63篇
  1998年   68篇
  1997年   41篇
  1996年   60篇
  1995年   33篇
  1994年   47篇
  1993年   41篇
  1992年   41篇
  1991年   48篇
  1990年   31篇
  1989年   46篇
  1988年   36篇
  1987年   39篇
  1986年   39篇
  1985年   64篇
  1984年   58篇
  1983年   42篇
  1982年   48篇
  1981年   29篇
  1980年   29篇
  1979年   24篇
  1978年   26篇
  1977年   34篇
  1976年   26篇
  1975年   28篇
  1974年   35篇
排序方式: 共有5242条查询结果,搜索用时 31 毫秒
21.
In September 1991 the Greek Consumer Protection Act No. 1961 was enacted. Chapter 2 of this Act establishes a legal framework for product safety. This framework has the dual aim of securing deregulation in the Greek market while maintaining effective consumer protection. This paper analyses the main features of this framework and demonstrates its inadequacies. It also investigates the extent to which these inadequacies could jeopardise an effective protection of consumers' interests. The paper concludes by emphasising that effective protection of consumers can only be achieved by supporting the general safety requirement with adequate accident-surveillance systems, mechanisms for investigation of risks, unambiguous risk-assessment criteria, creation of a comprehensive set of supporting standards that offer a high level of protection, effective control of the safety of products by the authorities, and real possibilities for consumer organisations to participate in the whole process.
Zusammenfassung Die Sicherheit des Verbrauchers in Griechenland: eine Analyse des Verbraucherschutzgesetzes von 1991 Im September 1991 trat das griechische Verbraucherschutzgesetz in Kraft. Kapitel 2 des Gesetzes führt einen rechtlichen Rahmen für die Sicherheit von Produkten ein. Dieser Rahmen verfolgt das Ziel der Deregulierung auf dem griechischen Markt bei zugleich wirksamem Verbraucherschutz. Der Beitrag analysiert die wesentlichen Aspekte dieses Rahmens und stellt seine Schwächen dar. Er prüft, inwieweit diese Schwächen einem wirksamen Verbraucherschutz entgegenstehen können, und hebt hervor, da\ wirksamer Verbraucherschutz nur durch Stärkung der allgemeinen Sicherheitsbestimmungen erreicht werden kann. Dafür sind erforderlich ein angemessenes Unfallüberwachungssystem, Regelungen für die Untersuchung von Risiken, eindeutige Kriterien für die Bewertung von Risiken, die Entwicklung umfassender Kriterien zur Gewährleistung eines hohen Schutzniveaus, die wirksame Kontrolle der Produktsicherheit durch die Behörden, sowie für die Verbraucherorganisationen die faktische Mitwirkungsmöglichkeit an der gesamten Entwicklung.


George Argiros, a member of the Athens Bar Association, is at present researching in the field of EC Law and Consumer Protection at the University of Leicester, Faculty of Law, Leicester LE1 7RH, U.K.  相似文献   
22.
23.
In 1986 The O.M. Scott & Sons Company, the largest producer of lawn care products in the U.S., was sold by the ITT Corporation in a divisional leveraged buyout. The company was founded in Marysville, Ohio in 1870 by Orlando McLean Scott to sell farm crop seed. In 1900, the company began to sell weedfree lawn seed through the mail. In the 1920s, the company introduced the first home lawn fertilizer, the first lawn spreader, and the first patented bluegrass seed. Today, Scott is the acknowledged leader in the “do-it-yourself” lawn care market, with sales of over $300 million and over 1500 employees. Scott remained closely held until 1971, when it was purchased by ITT. The company then became a part of the consumer products division of the huge conglomerate, and operated as a wholly-owned subsidiary for 14 years. In 1984, prompted by a decline in financial performance and rumors of takeover and liquidation, ITT began a series of divestitures. Over the next two years, total divestitures exceeded $2 billion and, after years of substandard performance, ITT's stock price significantly outperformed the market. On November 26, 1986, in the midst of this divestiture activity, ITT announced that the managers of Scott, along with Clayton & Dubilier (C & D), a private firm specializing in leveraged buyouts, had agreed to purchase the stock of Scott and another ITT subsidiary, the W. Atlee Burpee Company. The deal closed on December 30. Clayton & Dubilier raised roughly $211 million to finance the purchase of the two companies. Of that $211 million, almost $191 milion, or 91% of the total, was debt: bank loans, subordinated notes, and subordinated debentures. The $20 million of new equity was distributed as follows: roughly 62% of the shares were held by a C & D partnership, 21% by Scott's new subordinated debtholders, and 17.5% by Scott management and employees. After this radical change in financial structure and concentration of equity ownership, Scott's operating performance improved dramatically. Between the end of December 1986 and the end of September 1988, sales were up 25% and earnings before interest and taxes (EBIT) increased by 56%. As shown in Table 1, this increase in operating earnings was not achieved by cutting back on marketing and distribution or R & D. In fact, spending on marketing and distribution increased by 21% and R & D spending went up by 7%. Capital spending also increased by 23%.  相似文献   
24.
This paper uses a general two-sector model of endogenous growth to examine how the spirit of capitalism affects the relation between public finance and growth. The spirit of capitalism is defined as acquisitive personal objectives. We find that if the spirit of capitalism is present, an increase in the share of government spending in output reduces the long-run growth rate. The negative relationship between fiscal spending and growth is consistent with empirical evidence.  相似文献   
25.
Philosophers have constituted business ethics as a field by providing a systematic overview that interrelates its problems and concepts and that supplies the basis for building on attained results. Is there a properly theological task in business ethics? The religious/theological literature on business ethics falls into four classes: (1) the application of religious morality to business practices; (2) the use of encyclical teachings about capitalism; (3) the interpretation of business relations in agapa-istic terms; and (4) the critique of business from a liberation theological point of view. Theologians have not adequately addressed the questions of whether there are particular theological tasks in the field as they define it, and whether, if they define it, the theological definition is different from the philosophical.  相似文献   
26.
The purpose of this study was to assess the basis behavior of the Live Cattle Futures contract at the Chicago Mercantile Exchange (CME) before and after the 1995 contract changes. Additionally, an alternative method of basis calculation utilizing weighted mean futures prices versus settlement futures prices was compared to determine which method provides a better representation of the basis level. Within a regression model with heteroskedascity error framework, we found that the level of nearby basis in the period after June 1995 has shifted lower and the average monthly open interest of net commercial long positions has substantially increased after the contract modifications. These empirical results are consistent with the notion that more long activity entered the market in response to the contract modifications. Additionally, an alternative (new) measure of basis calculation (cash price minus weighted mean futures price) produced similar results to two other commonly used measures. In conclusion, the 1995 contract changes have neither increased nor decreased the volatility of live cattle basis. © 2004 Wiley Periodicals, Inc. Jrl Fut Mark 24:557–590, 2004  相似文献   
27.
The purpose of this article is to study the level of “in‐stock” customer service performance being offered in the catalog channel of distribution. The article provides benchmark information for the catalog industry. More importantly, the article serves as one test of the effectiveness of the modern supply chain, where the expectation is for near perfect orders. Customer service levels are studied by using an empirical observation methodology in which catalog retailer's in‐stock performance was measured. Comparisons are made across item type, season, retailer type, and days from catalog receipt. Overall, items were out‐of‐stock during 15.9% of all checkpoints, compared to an 11.8% stock‐out rate in an earlier study of bricks and mortar retailers.  相似文献   
28.
29.
Beef cattle producers were surveyed in Texas and Nebraska to investigate perceptions of sources of risk, the effectiveness of risk management strategies, and interest in further risk management education, particularly production risk, using probit analysis. Important decision variables identified are age, prior use of risk management tools, previous attendances of risk management education, and risk aversion. Severe drought and cattle price variability are identified as primary risk factors with potential to affect farm income. Extremely cold weather and disease are of less importance. Understocking pasture and storing hay are perceived most effective as risk management options.  相似文献   
30.
以油藏监测工作中的油藏压力监测为例,介绍了标准化工作在压力资料录取及解释分析中的作用。并用实例说明了标准化作业在油田开发方案的制定及油藏压力监测中的应用。  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