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   5670篇
  免费   126篇
财政金融   1231篇
工业经济   438篇
计划管理   902篇
经济学   1198篇
综合类   91篇
运输经济   41篇
旅游经济   110篇
贸易经济   990篇
农业经济   258篇
经济概况   535篇
邮电经济   2篇
  2023年   27篇
  2021年   40篇
  2020年   88篇
  2019年   102篇
  2018年   117篇
  2017年   124篇
  2016年   115篇
  2015年   90篇
  2014年   122篇
  2013年   682篇
  2012年   150篇
  2011年   202篇
  2010年   167篇
  2009年   201篇
  2008年   177篇
  2007年   171篇
  2006年   129篇
  2005年   143篇
  2004年   124篇
  2003年   150篇
  2002年   136篇
  2001年   110篇
  2000年   128篇
  1999年   127篇
  1998年   137篇
  1997年   118篇
  1996年   100篇
  1995年   111篇
  1994年   90篇
  1993年   80篇
  1992年   67篇
  1991年   86篇
  1990年   74篇
  1989年   58篇
  1988年   60篇
  1987年   56篇
  1986年   66篇
  1985年   98篇
  1984年   98篇
  1983年   92篇
  1982年   78篇
  1981年   73篇
  1980年   72篇
  1979年   67篇
  1978年   75篇
  1977年   68篇
  1976年   68篇
  1975年   60篇
  1974年   57篇
  1973年   39篇
排序方式: 共有5796条查询结果,搜索用时 0 毫秒
151.
A bstract .   I begin this chapter with an account of what is deserved in human ethics, an ethics that assumes without argument that only humans, or rational agents, count morally. I then take up the question of whether nonhuman living beings are also deserving, and I answer it in the affirmative. Having established that all individual living beings, as well as ecosystems, are deserving, I go on to establish what it is that they deserve and then compare the requirements of global justice when only humans are taken into account with the requirements of global justice when all living beings are taken into account. I argue that the more adequate global justice that takes into account all living beings imposes some additional obligations on us that are absent from a less defensible human-centered global justice, but not as many as one might initially think.  相似文献   
152.
An Empirical Look at Software Patents   总被引:4,自引:1,他引:4  
Software patents have grown rapidly in number and now comprise 15% of all patents. They are acquired primarily by large manufacturing firms in industries known for strategic patenting; only 5% belong to software publishers. The very large increase in software patent propensity over time is not adequately explained by changes in R&D investments, employment of computer programmers, or productivity growth. The residual increase in software patent propensity is consistent with a sizeable increase in the cost effectiveness of software patents during the 1990s, perhaps arising from changes in the application of patent law to computer software.  相似文献   
153.
This empirical note extends the recent work by Holmes (2006) in examining the long-run relationship between private and public savings in the U.S. over the post-World War II period. Standard Engle-Granger cointegration tests fail to reject the null hypothesis of no cointegration; however, once allowance is made for an endogenous break in the cointegrating relationship, the weak form of the Ricardian equivalence proposition is supported.  相似文献   
154.
We introduce the matrix exponential as a way of modelling spatially dependent data. The matrix exponential spatial specification (MESS) simplifies the log-likelihood allowing a closed form solution to the problem of maximum-likelihood estimation, and greatly simplifies the Bayesian estimation of the model. The MESS can produce estimates and inferences similar to those from conventional spatial autoregressive models, but has analytical, computational, and interpretive advantages. We present maximum likelihood and Bayesian approaches to the estimation of this spatial model specification along with methods of model comparisons over different explanatory variables and spatial specifications.  相似文献   
155.
James W. Scott 《Geopolitics》2020,25(3):658-677
ABSTRACT

This essay contextualises Hungarian antipolitics of Europe as an element of radical conservative nation-building and as a reflection of the strategic use of borders. Two concrete examples of border politics will be elaborated that document shifts from EU-conformity to EU-contestation and the increasing political significance of culturalist arguments. These cases, moreover, are exemplary of the dual nature of then nationalist-conservative agenda which involves: 1) the implementation of an ethnopolitical and thus extraterritorial, de-bordered notion of nation and 2) the unilateral securitisation of Hungary’s borders, for example with Serbia, in a self-proclaimed defence of European integrity. The research that informs this essay is based on a review of media sources, academic and policy-focused literature. The essay begins with a discussion of links between Hungarian euroscepticism and the radical conservative nation-building project and continues with an analysis of post-1989 border politics with regards to the areas mentioned above. Considerable attention will be devoted to the Hungarian government’s politics of borders and contestations of European Union within the context of the so-called refugee crisis and wider debates regarding immigration and asylum.  相似文献   
156.
157.
Three policy-relevant questions about multifamily mortgage originations (MFOs) are addressed. First, what is the annual volume of MFOs? This analysis highlights differences and problems among three publicly available multifamily lending surveys; the 1993 volume is estimated at $30 billion. Second, what is the size distribution of multifamily mortgages? Using kernel density estimation, variation in this distribution among central cities and suburbs, underserved areas, and lender type is examined. Third, what are the primary determinants of the variation in multifamily lending? A relatively simple regression model is estimated to shed light on the variables most highly correlated with multifamily lending. Tract income relative to MSA median income and minority concentrations are shown to be highly correlated with lending volume, but the largest source of variation is the number of multifamily rental units in the tract.  相似文献   
158.
This paper examines the 205 insolvent thrifts that were resolved in 1988 and assesses the cost savings obtained by selling 179 of the institutions through assisted acquisitions rather than liquidating them. It is hypothesized that the cost savings were determined by factors related both to the future viability of the acquired institution and the particulars of the deal arranged by the Federal Home Loan Bank Board and the Federal Savings and Loan Insurance Corporation. The added value by selling a thrift is determined primarily by the level of core deposits obtained by the acquired thrift. However, the branch structure and purchased mortgage-servicing rights should also add franchise value to the firm. In addition to these factors, the analysis accounts for the tax benefits and other regulator forbearances associated with the deals. Other characteristics of the deals are also considered. It is found that core deposits, tax benefits, purchased mortgage-servicing rights, average branch size, and type of acquirer, as well as some other factors, were significant determinants of the cost savings obtained through selling an institution rather than liquidating it.  相似文献   
159.
A depository institution's interest rate risk (IRR) exposure is the sensitivity of its earnings or market value of equity to changes in interest rates. Since the mid-1980's, bank regulators have developed broadly applied, centralized IRR models which are used to help assess individual institutions' capital adequacy. This paper tests the effectiveness of the earliest of these regulatory IRR models: the incomegap estimates calculated by the Federal Home Loan Bank Board (FHLBB) during the latter 1980's. Despite the many problems caused by the broad application of generic assumptions and the presence of embedded options, we find that the FHLBB gap estimates provided a significant measure of IRR exposure. We believe that these results bode well for the success of ongoing, more sophisticated regulatory modeling efforts.  相似文献   
160.
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