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   120篇
  免费   4篇
财政金融   20篇
工业经济   10篇
计划管理   21篇
经济学   33篇
综合类   2篇
贸易经济   22篇
农业经济   3篇
经济概况   13篇
  2019年   3篇
  2018年   1篇
  2017年   2篇
  2016年   2篇
  2015年   2篇
  2014年   2篇
  2013年   8篇
  2012年   2篇
  2011年   2篇
  2010年   2篇
  2009年   3篇
  2008年   2篇
  2007年   4篇
  2006年   3篇
  2005年   1篇
  2004年   1篇
  2003年   3篇
  2002年   2篇
  2001年   2篇
  2000年   2篇
  1999年   6篇
  1998年   3篇
  1997年   6篇
  1996年   3篇
  1995年   3篇
  1994年   5篇
  1993年   4篇
  1992年   4篇
  1991年   4篇
  1990年   3篇
  1989年   1篇
  1987年   3篇
  1986年   1篇
  1985年   3篇
  1984年   5篇
  1983年   4篇
  1982年   2篇
  1981年   2篇
  1980年   2篇
  1979年   3篇
  1978年   1篇
  1977年   1篇
  1973年   2篇
  1972年   2篇
  1969年   1篇
  1956年   1篇
排序方式: 共有124条查询结果,搜索用时 375 毫秒
1.
We present a general approach for applying policy capturing to small‐group decision making and demonstrate the approach with the NCAA Selection Committee's rankings of the 68 teams in the three most recent Division I Men's Basketball Tournaments. We develop a linear programming model that minimizes the extent to which the evaluation of a lower‐ranked team exceeds that of a team ranked immediately above it. The result is a set of linear weights that approximates a group decision when the decision itself is demonstrably internally inconsistent in that a group ranks some teams higher than others despite a lower implied evaluation.  相似文献   
2.
3.
Until recently, economic theory and economists treated the management process with benign neglect. Insofar as business enterprises — the firms of economic theory – require managers to oversee their daily operations, these managers are implicitly viewed as fungible ‘principal clerks’. This paper makes this view explicit and considers whether it is valid for a particular class of manager, that of a major league baseball team.  相似文献   
4.
Unlike the traditional futures contract risk‐based approach to margining, new security futures contracts are margined under a strategy‐based margining system similar to that which applies in the equity options markets. As a result, these new margin requirements are potentially much less sensitive to changes in market conditions. This article performs a simulation to evaluate whether these alternative margining methodologies can be expected to produce comparable outcomes. The analysis suggests that a 1‐day settlement period will likely lead to collection of customer margins that are virtually always greater than that which its traditional risk‐based counterpart would require. A 4‐day settlement period would lead to margin requirements that both significantly under‐ and overmargin relative to a comparable risk‐based system. This study argues that exchanges may approach the preferred probability of customer exhaustion by managing margin settlement intervals. Thus, the new strategy‐based rules, in and of themselves, will not necessarily inhibit new security futures trading activity. © 2003 Wiley Periodicals, Inc. Jrl Fut Mark 23:989–1002, 2003  相似文献   
5.
6.
This article explicitly incorporates layoff and hiring costs into a discretetime dynamic model with stationary demand uncertainty, in which managers in a cooperative learn something about the demand process over time, and anticipate learning something about that process. It is shown how the opportunity to learn affects initial membership size and how the knowledge gained induces changes in membership, as well as how risk preferences impact on membership size at any point in time.  相似文献   
7.
Voter participation rates vary widely across the 50 states and the District of Columbia. This empirical study seeks, within the context of a broadened version of the “rational voter model,” to identify determinants of this geographic variation. Using the 2014 mid-term general election, it was found that the voter participation rate across states and the District of Columbia was positively related to whether there is a close governor’s race or a close U.S. Senate race, the female labor force participation rate, the percent of the population aged 65 and over, the number of referenda on the ballot, and the degree of voting-by-mail usage. In addition, it was found that voter turnout was negatively related to the percentages of the population that are either Hispanic or Afro-American.  相似文献   
8.
This study compares two alternative regression specifications for sizing hedge positions and measuring hedge effectiveness: a simple regression on price changes and an error correction model (ECM). We show that, when the prices of the hedged item and the hedging instrument are cointegrated, both specifications yield similar results which depend on the hedge horizon (i.e., the time frame for measuring price changes). In particular, the estimated hedge ratio and regression R2 will both be small when price changes are measured over short intervals, but as the hedge horizon is lengthened both measures will converge toward one. These results imply that, when prices are cointegrated, a longer hedge horizon will yield an optimal hedge ratio closer to one, while at the same time enhancing the ability to qualify for hedge accounting. © 2011 Wiley Periodicals, Inc. Jrl Fut Mark 32:837–876, 2012  相似文献   
9.
There is a well‐established long‐term trend towards increased competitive balance in US major‐league baseball. Kyou‐sou (competing) in the Nippon leagues has been on a similar upward trend. Nippon baseball, however, has not undergone the substantive institutional changes that mark the major leagues. After accounting for some of the factors that might explain this upward trend and eliminating some other plausible explanations, it is concluded that the greater competitive balance that currently exists may be the outgrowth of management policies that work to the benefit of fans as well as owners.  相似文献   
10.
Abstract. This paper proposes a pricing mechanism, optional real-time pricing (RTP), with day-ahead hourly prices, that exploits the potential offered by a competitive wholesale power market. When an electric utility offers the option to its industrial customers, the retail prices are based on an existing Hopkinson tariff and expectations as to the wholesale market's next-day hourly spot prices. The proposed RTP mechanism is Pareto-superior to the tariff in that it assures both the utility and the customer of profits that will be at least as great as under the tariff.  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