全文获取类型
收费全文 | 13551篇 |
免费 | 338篇 |
专业分类
财政金融 | 2724篇 |
工业经济 | 1046篇 |
计划管理 | 2296篇 |
经济学 | 2914篇 |
综合类 | 166篇 |
运输经济 | 99篇 |
旅游经济 | 245篇 |
贸易经济 | 2216篇 |
农业经济 | 515篇 |
经济概况 | 1657篇 |
信息产业经济 | 1篇 |
邮电经济 | 10篇 |
出版年
2021年 | 88篇 |
2020年 | 159篇 |
2019年 | 219篇 |
2018年 | 271篇 |
2017年 | 304篇 |
2016年 | 262篇 |
2015年 | 190篇 |
2014年 | 277篇 |
2013年 | 1582篇 |
2012年 | 368篇 |
2011年 | 442篇 |
2010年 | 403篇 |
2009年 | 447篇 |
2008年 | 408篇 |
2007年 | 336篇 |
2006年 | 352篇 |
2005年 | 313篇 |
2004年 | 309篇 |
2003年 | 320篇 |
2002年 | 309篇 |
2001年 | 270篇 |
2000年 | 277篇 |
1999年 | 273篇 |
1998年 | 270篇 |
1997年 | 244篇 |
1996年 | 247篇 |
1995年 | 194篇 |
1994年 | 200篇 |
1993年 | 209篇 |
1992年 | 232篇 |
1991年 | 241篇 |
1990年 | 169篇 |
1989年 | 151篇 |
1988年 | 138篇 |
1987年 | 156篇 |
1986年 | 166篇 |
1985年 | 223篇 |
1984年 | 189篇 |
1983年 | 209篇 |
1982年 | 182篇 |
1981年 | 172篇 |
1980年 | 180篇 |
1979年 | 164篇 |
1978年 | 122篇 |
1977年 | 133篇 |
1976年 | 125篇 |
1975年 | 119篇 |
1974年 | 117篇 |
1973年 | 90篇 |
1971年 | 72篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
971.
972.
Louis J. Lombardi F.S.A. 《North American actuarial journal : NAAJ》2013,17(1):94-106
Abstract The adoption of Statement of Financial Accounting Standards No. 97 (SFAS 97) eliminated the “lock-in” concept introduced in SFAS 60. Since many of the actuarial assumptions used in the calculation of the deferred acquisition cost (DAC) asset are difficult to predict over an extended period of time, “dynamic unlocking” was a sensible solution. Although this “dynamic unlocking” keeps the assumptions in line with recent experience, it comes at a cost—increased volatility of GAAP earnings. Some of the causes of this volatility are warranted since it accentuates the effects on earnings due to certain changes in the underlying experience. Other causes of this volatility may be unwarranted because of a misapplication of the principles underlying SFAS 97 and SFAS 120 or the manner in which changes in experience were reflected. In addition, most analysts expect the amortization of deferred acquisition costs to increase when earnings are better than expected. Conversely, analysts expect the amortization of deferred acquisition costs to decrease when earnings are worse than expected. Often the amortization of deferred acquisition costs behaves in a manner contrary to their expectations. This article analyzes what causes this volatility, explains why the amortization can behave contrary to expectations, and suggests several techniques for minimizing these unwarranted results. 相似文献
973.
Abstract Cigarette smoking has reached epidemic proportions in many Asian countries, and epidemiologists predict massive increases in the number of smoking-related deaths in future decades. This information is of great interest to insurers who would like to sell coverage in these markets with smoker/nonsmoker-distinct pricing. This review examines excess mortality due to cigarette smoking in Asia as determined by a second-quarter 1998 Internet search of the world’s English-language medical literature for references published during the preceding five years. Studies to date which observed fairly low relative risks of mortality in smokers compared with nonsmokers in Asia despite a high prevalence of smoking can be explained by the fact that health outcome data represent early experience. Given similar associations between smoking and mortality in Asian and Western studies, it is likely that mortality patterns of smokers in Asia eventually will mirror those seen in the U.S. and the United Kingdom. 相似文献
974.
This paper examines global recessions as a cascade phenomenon. In other words, how recessions arising within one or more countries
might percolate across a network of connected economies. An agent based model is set up in which the agents are Western economies.
A country has a probability of entering recession in any given year and one of emerging from it the next. In addition, the
agents have a threshold propensity, which varies across time, to import a recession from the agents most closely connected
to them. The agents are connected on a network, and an agent’s neighbours at any time are either in (state 1) or out (state
0) of recession. If the weighted sum exceeds the threshold, the agent also goes into recession. Annual real GDP growth for
17 Western countries 1871–2006 is used as the data set. The model is able to replicate three key features of the statistical
distribution of recessions: the distribution of the number of countries in recession in any given year, the duration of recessions
within the individual countries, and the distribution of ‘wait time’ between recessions i.e. the number of years between them.
The network structure is important for the interacting agents to replicate the stylised facts. The country-specific probabilities
of entering and emerging from recession by themselves give results which are by no means as well matched to the actual data.
We are grateful to an anonymous referee for some extremely helpful comments. 相似文献
975.
976.
Abstract This article employs a longitudinal form of the Grade of Membership (GoM) model to specify and estimate a multivariate model of the trajectories of morbidity, disability, and mortality among longitudinally followed elderly respondents to the National Long-Term Care Survey (NLTCS) of 1984, 1989, 1994, and 1999. A distinct trajectory was constructed for each individual respondent to the survey. The trajectories described the progressive declines over time in physical and cognitive functioning among a nationally representative sample of the U.S. elderly population. The model was structured to represent simultaneously the essential features of the fixed frailty model of Vaupel, Manton, and Stallard and Strehler and Mildvan’s model of linearly declining vitality. Unlike those models, however, the longitudinal GoM model was designed for easy and direct application to existing longitudinal data sets. The measurement space in the NLTCS application included from one to four sets of repeated measures for each survey respondent on 95 independent variables characterizing the nature and intensity of limitations in activities of daily living (ADLs), instrumental activities of daily living (IADLs), physical functioning, and cognitive functioning, as well as indicators of behavioral characteristics, medical conditions, subjective health, age, race, sex, institutional status, and survival status. The application showed that the model can be fitted to existing data and that the results were interpretable as generalizations of fixed frailty with linearly declining vitality. 相似文献
977.
Using quarterly data for 1972–2000, the paper examines the long-term and short-term movements of the US-Canadian exchange rate. It is found that the standard purchasing power parity condition fails to explain movements of the Canadian dollar. The explanatory power of the model increases significantly when resource commodity prices are added to the equation. Short-term movements in the Canadian dollar are influenced by the interest rate differential between Canada and the USA. 相似文献
978.
Javier Coto-Martínez María D. C. García-Alonso† Paul Levine‡ 《Bulletin of economic research》2009,61(2):127-138
We extend the Benassy 'taste for variety' model to an open economy setting. With the Benassy effect, the market equilibrium is inefficient, openness reduces the varieties provided in the unconstrained optimum and there are potential gains from international coordination. 相似文献
979.
980.
This study examines how sudden shrinkage of domestic demand affects firm-level export performance. Using the Asian economic crisis as a natural experiment, we show that while the industrial organization (IO) economics and resource-based view (RBV) apply well in the pre-crisis period, the real options perspective does a better job in explaining firms’ efforts to increase exports in the post-crisis period. Specifically, using a real options perspective, we show how sudden change in domestic demand provides benefits to those firms that have invested in flexible capabilities while those firms that are locked in with inflexible resources fail to change. We find that the positive relationship between a firm's domestic market position and export intensity becomes stronger in the post-crisis than the pre-crisis period. Further, we find a positive relationship between non-location-bound flexible capabilities such as R&D and export intensity and a negative relationship between location-bound inflexible capabilities such as advertising and export intensity. These relationships become more pronounced in the post-crisis period. 相似文献