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   247篇
  免费   6篇
财政金融   33篇
工业经济   13篇
计划管理   40篇
经济学   58篇
综合类   7篇
运输经济   6篇
旅游经济   5篇
贸易经济   58篇
农业经济   10篇
经济概况   23篇
  2023年   5篇
  2021年   3篇
  2019年   5篇
  2018年   7篇
  2017年   4篇
  2016年   9篇
  2015年   4篇
  2014年   6篇
  2013年   41篇
  2012年   8篇
  2011年   8篇
  2010年   6篇
  2009年   4篇
  2008年   5篇
  2007年   9篇
  2006年   8篇
  2005年   11篇
  2004年   7篇
  2003年   6篇
  2002年   13篇
  2001年   8篇
  2000年   2篇
  1999年   3篇
  1998年   9篇
  1997年   6篇
  1995年   5篇
  1994年   2篇
  1993年   2篇
  1992年   6篇
  1991年   1篇
  1990年   2篇
  1989年   1篇
  1988年   1篇
  1986年   3篇
  1984年   4篇
  1982年   2篇
  1981年   1篇
  1980年   5篇
  1979年   2篇
  1977年   2篇
  1976年   1篇
  1975年   2篇
  1974年   4篇
  1973年   2篇
  1972年   2篇
  1971年   2篇
  1970年   1篇
  1968年   1篇
  1960年   1篇
  1954年   1篇
排序方式: 共有253条查询结果,搜索用时 0 毫秒
121.
122.
123.
Abstract

This paper presents historical death rates for Canada, Mexico, and the U.S. by sex and broad age group. The time period for this historical analysis begins with 1900 (1930 for Mexico). These data provide a quite consistent basis from which experts can develop and contrast their expectations for future mortality trends. Official mortality projections developed by government agencies of each of the three countries provide a starting point for this discussion.

During this century, death rates declined fairly rapidly in all three countries. However, the rate of mortality improvement has varied considerably across time periods: distinct periods of rapid and slow improvement are evident in the data, but are not consistent across the countries and have not yet been explained.

The historical rates of improvement in mortality have also varied greatly by age and sex: younger age groups have shown the most rapid proportional improvement in mortality in all three countries, and mortality improvement during this century has generally been greater for females than for males. However, the data provide evidence that this difference in the rates of mortality improvement between men and women has recently slowed, and even reversed, in the U.S. and Canada. Historical experience and projections are provided in graphs, in which death rates are plotted on a logarithmic scale. This approach allows easy detection of the extent to which rates of improvement have been changing (death rates with constant rates of improvement would be plotted as straight lines).

The official projections supplied for comparison provide strikingly similar outlooks for future potential mortality improvement. In each case, the relatively average rapid rate of mortality improvement experienced so far this century is assumed to slow in the future. In addition, rates of improvement are projected to be much more similar for all three countries across age groups and between the sexes.  相似文献   
124.
125.
126.
Little inquiry has occurred on insurance as an alternative environmental regulator, despite a growing interest in the subject. This paper presents the findings from a survey and questionnaire on two leading UK insurance companies' pollution claims. Insurers' initial underwriting assessments and post‐loss investigations and insureds' environmental management practices are poorly developed regarding pollution issues. Insurance is currently a weak financial instrument to prevent pollution losses. Copyright © 2003 John Wiley & Sons, Ltd. and ERP Environment  相似文献   
127.
Multiple-Category Decision-Making: Review and Synthesis   总被引:1,自引:1,他引:1  
In many purchase environments, consumers use information from a number of product categories prior to making a decision. These purchase situations create dependencies in choice outcomes across categories. As such, these decision problems cannot be easily modeled using the single-category, single-choice paradigm commonly used by researchers in marketing. We outline a conceptual framework for categorization, and then discuss three types of cross-category dependence: cross-category consideration cross-category learning, and product bundling. We argue that the key to modeling choice dependence across categories is knowledge of the goals driving consumer behavior.  相似文献   
128.
This paper deals with a setting in which borrowers and lenders place different values on an asset that can be used as collateral. Under adverse selection, lenders may rationally choose credit contracts with the object of attracting a relatively risky group of clients, so raising their chances of gaining possession of the asset through default. Contracts of differing attractiveness to borrowers can also coexist in equilibrium. When an ‘inside’ and an ‘outside’ lender compete, the latter placing a lower value on the collateral, and their loanable funds are sufficiently limited, a separating equilibrium may exist in which the insider offers a contract which attracts risky borrowers, whereas the outsider's contract is aimed at a safer group. If loanable funds are ample, the only equilibrium will involve pooling contracts, but the insider may still offer more attractive contracts in an entry game.  相似文献   
129.
In this article the incidence of poverty among the young is explained in terms of their labour force experience, educational attainment, gender, and living arrangements. The availability of the Australian Longitudinal Survey data enables the incomes of individuals to be related to many other socioeconomic variables over a number of years.
Generally the poor do not have high levels of education. About half of those classified as poor, endured a poverty spell of one year. But less than five per cent of the poor were so in each of the four survey years. Many of the poor were studying. Their low current incomes were presumably endured in the anticipation of high future earnings. The young women who were poor, many with children, were typically living in households offering them no additional financial support.  相似文献   
130.
Canadian sponsors of successful rehabilitation programs have found they offer impressive benefits for participants in long-term disability plans, as well as for employers and insurers. However, multiemployer plans frequently are not able to capitalize on these benefits.  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