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   16029篇
  免费   451篇
  国内免费   41篇
财政金融   2594篇
工业经济   1178篇
计划管理   2864篇
经济学   3327篇
综合类   663篇
运输经济   112篇
旅游经济   296篇
贸易经济   2745篇
农业经济   920篇
经济概况   1795篇
邮电经济   27篇
  2022年   109篇
  2021年   181篇
  2020年   214篇
  2019年   249篇
  2018年   316篇
  2017年   373篇
  2016年   342篇
  2015年   311篇
  2014年   451篇
  2013年   1451篇
  2012年   589篇
  2011年   641篇
  2010年   605篇
  2009年   593篇
  2008年   659篇
  2007年   592篇
  2006年   507篇
  2005年   474篇
  2004年   339篇
  2003年   334篇
  2002年   301篇
  2001年   283篇
  2000年   286篇
  1999年   249篇
  1998年   254篇
  1997年   263篇
  1996年   260篇
  1995年   236篇
  1994年   226篇
  1993年   249篇
  1992年   236篇
  1991年   228篇
  1990年   211篇
  1989年   183篇
  1988年   143篇
  1987年   175篇
  1986年   175篇
  1985年   259篇
  1984年   269篇
  1983年   262篇
  1982年   233篇
  1981年   234篇
  1980年   198篇
  1979年   209篇
  1978年   151篇
  1977年   157篇
  1976年   135篇
  1975年   108篇
  1974年   102篇
  1973年   93篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
961.
This paper examines three propositions implied by the quantity theory of money, namely, the neutrality hypothesis, the Fisher hypothesis and the monetary approach to exchange rate determination for six developed countries within a dynamic framework, which incorporates the long-run proposition as its steady-state solution while allowing for short-run deviation from the hypothesized long-run relationships to take place. The joint hypothesis that all three propositions are satisfied simultaneously is supported only for two countries.  相似文献   
962.
We investigate share price reactions to announcements of dividends payable in the common stock of corporations different from the issuing firm. We find that firms that declare these dividends (typically investment companies) experience positive abnormal returns upon announcement. We also find that such dividends are more likely to be declared when the shares to be distributed have peaked in value. Consistent with this finding, we document negative announcement-period abnormal returns for firms having their shares distributed. Additional tests reveal that prices respond more negatively when the information signal is strongest, when outside ownership is more dispersed, and when management is more entrenched.  相似文献   
963.
Free trade, factor returns, and factor accumulation   总被引:1,自引:0,他引:1  
A model of development is studied in which physical capital and unskilled labor are good substitutes, and skilled labor is complementary to the resulting aggregate. Growth in a closed economy is compared with two open regimes. Inflows of physical capital only reduce the interest rate and raise both wage rates. The skilled wage rises more sharply, however, increasing the skill premium and accelerating human capital accumulation. Full integration with a larger and more developed neighbor also reduces the interest rate and raises both wage rates, but in this case the skill premium falls and human capital accumulation changes very little.  相似文献   
964.
965.
966.
Determinants of demand for international tourist flows to Turkey   总被引:2,自引:0,他引:2  
This article describes the development and findings of a set of models used to identify the most important of the following selected variables influencing international tourist flows to Turkey: per capita income; relative prices; relative exchange rate; promotional expenditure (the Turkish Government has invested a substantial amount in promoting foreign tourism) and ‘special events’, eg political unrest. The demand for travel was measured both by the number of tourists, and by the total tourist expenditure. Data were obtained from secondary sources, and analysis was by least squares multiple regression. Income, price and exchange rate were found to be important factors but the impact of promotional expenditure was minimal  相似文献   
967.
A vector autoregressive model containing ocean grain freight rates, grain shipments, idled tonnage, new carrier deliveries and fuel prices is used to evaluate dynamic linkages in the ocean grain transport market. Dynamic relationships are of particular importance in ocean freighting months because freighting services are often contracted several months before shipment. In addition, such markets may be slow to adjust to shocks because of significant short-run fixities in shipping services. Ocean grain freight rates are found to be responsive to fuel prices and new ship deliveries, but are not affected by demand shocks. Ship idling rates are found to be sensitive to fuel prices, grain shipments and freight rates. Significant adjustment lags are revealed.  相似文献   
968.
969.
An investigation is reported of the potential for reducing aggregate medical costs by the introduction of nurse practitioners into the Canadian health care system to an extent consistent with demonstrated safety and effectiveness. A cost model is developed for this purpose and estimates of its parameters are provided. The cost model is coupled with a demographic projection model and potential cost reductions are simulated over the period 1980-2050, under alternative assumptions. Results suggest that savings could have been in the range 10-15% in 1980 for medical services as a whole, and 16-24% for ambulatory services. The estimated savings percentages are quite insensitive to projected changes in the age structure of the Canadian population.  相似文献   
970.
This study empirically investigates the information dynamics of the Ohlson valuation framework. Single-period lagged linear autoregressive relationships among dividends, earnings, and book values of equity are estimated for a sample of stochastically stationary firms and are found not to support the valuation framework. This study further extends the empirical analysis to a multilagged vector autoregressive linear information system. Consistent with the Ohlson valuation framework,the past time series of all three variables are generally found to be relevant for firm valuation. This study brings into question empirical research utilizing the Ohlson framework that presupposes a single-period lagged information dynamic.  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