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101.
This paper is divided into two distinct parts. Part I, Empirical Evidence, tests a previously formulated variance, thinness relationship for security returns. First quarter 1972 daily returns variance is regressed on market value of shares, share price, trading activity, sales variance, and institutional holdings for 178 firms selected by stratified random sampling from AMEX and NYSE (specialist exchanges), and from Tokyo and Rio de Janeiro (non-specialist exchanges). The principal finding is that returns variance and market value are inversely related on non-specialist exchanges, but not on specialist exchanges; this difference is attributed to specialists' impact. Part II, Policy Proposals, discusses the manner in which designated market makers may be effectively incorporated into a continuous auction exchange. Issues discussed include: desirability of price stabilization, transfers implicit in the existing U.S. specialist system, consolidation and public availability of the limit order book, number of designated market makers for a security, competitive bidding, and compensation for performing the price stabilization function. Stabilization is modeled as an external economy, and specific policy proposals for internalizing it are advanced.  相似文献   
102.
Management theorists have long sought to identify precisely what makes some people flourish under pressure and others fold. But they have come up with only partial answers: rich material rewards, the right culture, management by objectives. The problem with most approaches is that they deal with people only from the neck up, connecting high performance primarily with cognitive capacity. Authors Loehr and Schwartz argue that a successful approach to sustained high performance must consider the person as a whole. Executives are, in effect, "corporate athletes." If they are to perform at high levels over the long haul, they must train in the systematic, multilevel way that athletes do. Rooted in two decades of work with world-class atheletes, the integrated theory of performance management addresses the body, the emotions, the mind, and the spirit through a model the authors call the performance pyramid. At its foundation is physical well-being. Above that rest emotional health, then mental acuity, and, finally, a spiritual purpose. Each level profoundly influences the others, and all must be addressed together to avoid compromising performance. Rigorous exercise, for instance, can produce a sense of emotional well-being, clearing the way for peak mental performance. Rituals that promote oscillation--the rhythmic expenditure and recovery of energy-link the levels of the pyramid and lead to the ideal performance state. The authors offer case studies of executives who have used the model to increase professional performance and improve the quality of their lives. In a corporate environment that is changing at warp speed, performing consistently at high levels is more necessary than ever. Companies can't afford to address employees' cognitive capacities while ignoring their physical, emotional, and spiritual well-being.  相似文献   
103.
ABSTRACT

The effectiveness of revenue management systems has diminished in recent years due to the systems' inability to address the increasing complication of online deal-seeking behavior. To restore their efficiency, one must first understand the changes in advanced-booking behavior and their implications. This study expands the consumer booking model by addressing the impact of time-before-the-date-of-stay and exploring the implication for the hotel's pricing/marketing strategies. The findings underscore the urgent need for empirical research on timing by showing that the predictions of the advanced-booking model, and consequently the effectiveness of RM systems, depend on the actual patterns over time.  相似文献   
104.
This article develops a real options model for valuing natural resource exploration investments (e.g. oil or copper) when there is joint price and geological‐technical uncertainty. After a successful several‐stage exploration phase, there is a development investment and an extraction phase. All phases are optimized contingent on price and geological‐technical uncertainty.
Several real options are considered. There are flexible investment schedules for all exploration stages and a timing option for the development investment. Once the mine is developed, there are closure, opening and abandonment options for the extraction phase. Our model maintains a relatively simple valuation structure by collapsing price and geological‐technical uncertainty into a one‐factor model.
We apply the model to a copper exploration prospect and find that a significant fraction of total project value is due to the operational, development and exploration options available to project managers.  相似文献   
105.
Managements, unions, and arbitrators have been plagued by a very simple but long-standing problem involving what might be termed a routine human resource action. The problem stated simply is: When is a quit a quit? Where employees are represented by a bargaining agent, the company cannot always be sure that a “quit is a quit.” It is clear that employers who do not understand the “I quit” syndrome are in an uncertain position with respect to handling such problems. The authors have also discovered that unions do not understand the “I quit” syndrome either and at times go to arbitration with all of its attendant costs when the employee has actually “quit.” The purposes of this article are to study how arbitrators have ruled, to establish the principles involved in this little-known area of union/management relations and to provide parties to such cases with information to guide them. Arbitrators have upheld grievances and reversed company actions often enough that there is a need to clarify what is a “quit” as well as a need to clarify what the rights are of both parties under the collective bargaining agreement. The authors found that many managements use the “I quit” syndrome as a substitute for disciplinary action. It is clear from arbitral decisions that it is best from the company point of view to allow the disciplinary system to handle problem employees. The authors also found that reasonable resignations by employees were upheld by arbitrators. If employers carefully handle and document employee resignations, the resignations will stand. Further, it is clear that employers must issue clear policy statements concerning resignations; this includes avoiding resignations under duress. Finally, parties to collective bargaining agreements need contract language defining a quit.  相似文献   
106.
A bstract . Recent research suggests there is substantial wage discrimination against blacks in professional basketball , and that fans are the source of this discrimination. The use of multiple regression analysis does indicate a salary shortfall for black players of fourteen to sixteen percent compared with salaries of white players with comparable on-court performance. To see whether this shortfall is likely to be due to fan discrimination as the relatively scarce white talent is bid into cities with many white fans, the racial composition of teams is related to the proportion of black residents among the populations of franchise cities. There is statistically significant evidence of geographical sorting by race. Evidence of racial bias is less obvious in contexts where a team's performance would be jeopardized, however. Thus, no evidence is found that fan attendance moves inversely with the percentage of playing time accorded black players, and only weak evidence is found that black players have to be better than white players to enter the National Basketball Association (NBA).  相似文献   
107.
Hungary was the first Eastern European country to tackle the problem of economic reform: initially in piecemeal fashion, then by introducing broad sets of measures aimed at establishing a market-based economic system. This paper reviews the Hungarian experience with privatization policies and presents some general conclusions regarding the design of successful privatization schemes that might serve as rough guidelines for other countries trying to reduce a vastly overextended public sector.  相似文献   
108.
109.
In this study 352 working men and women responded to a questionnaire about their perceptions of what constituted sexual harassment. It was hypothesized that females, compared to males, would view ambiguous sexually oriented work behavior as more harassing. It was also hypothesized that those who had been a target of sexual harassment, compared to those who had not been a target, would view ambiguous sexually oriented work behavior as more harassing. Both hypotheses were supported. Additionally, after taking into account the effect of having been a target of sexual harassment, the effect of gender on perceptions of sexual harassment was found to be spurious. Implications for management and future research are discussed. An earlier version of this paper was presented at the 1993 Southern Management Association meeting in New Orleans.  相似文献   
110.
This article addresses costs and utilization for mental health/substance abuse treatment, with particular emphasis on the emerging importance of self-insured coverage in the 1990s. We estimate drug abuse treatment demand and utilization with an insurance claims database from self-insured employers. The study population was selected from a large database consisting of health insurance claims for all treatment events starting 1 January 1989 and ending 31 December 1991. Approximately three-quarters of the increase in in-patient usage attributable to fractional co-insurance is due to increased usage per person (the other one-quarter refers to increased numbers of users). About half of the increase in outpatient usage is due to increased usage per person. In summary, our estimates provide useful measurements of the potential impacts of improved drug abuse treatment coverage. Although the potential induced in-patient expenditures and dead-weight losses are substantial compared to co-insurance rates of 0.5, losses can be trimmed by adjusting co-insurance, even at rates of approximately 0.1.  相似文献   
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