全文获取类型
收费全文 | 450篇 |
免费 | 40篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 66篇 |
工业经济 | 11篇 |
计划管理 | 75篇 |
经济学 | 134篇 |
综合类 | 6篇 |
运输经济 | 5篇 |
旅游经济 | 5篇 |
贸易经济 | 130篇 |
农业经济 | 19篇 |
经济概况 | 40篇 |
出版年
2023年 | 5篇 |
2022年 | 6篇 |
2021年 | 13篇 |
2020年 | 13篇 |
2019年 | 17篇 |
2018年 | 34篇 |
2017年 | 33篇 |
2016年 | 27篇 |
2015年 | 19篇 |
2014年 | 27篇 |
2013年 | 69篇 |
2012年 | 30篇 |
2011年 | 11篇 |
2010年 | 22篇 |
2009年 | 28篇 |
2008年 | 12篇 |
2007年 | 9篇 |
2006年 | 11篇 |
2005年 | 19篇 |
2004年 | 9篇 |
2003年 | 11篇 |
2002年 | 8篇 |
2001年 | 6篇 |
2000年 | 3篇 |
1999年 | 6篇 |
1998年 | 4篇 |
1997年 | 2篇 |
1996年 | 2篇 |
1995年 | 1篇 |
1994年 | 2篇 |
1993年 | 2篇 |
1992年 | 1篇 |
1991年 | 2篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1988年 | 2篇 |
1987年 | 1篇 |
1985年 | 1篇 |
1984年 | 3篇 |
1983年 | 1篇 |
1982年 | 1篇 |
1981年 | 2篇 |
1980年 | 2篇 |
1978年 | 3篇 |
1977年 | 3篇 |
1963年 | 1篇 |
1955年 | 1篇 |
1954年 | 1篇 |
1862年 | 1篇 |
1859年 | 2篇 |
排序方式: 共有491条查询结果,搜索用时 700 毫秒
91.
We consider robust optimal portfolio problems for markets modeled by (possibly non-Markovian) Itô–Lévy processes. Mathematically, the situation can be described as a stochastic differential game, where one of the players (the agent) is trying to find the portfolio that maximizes the utility of her terminal wealth, while the other player (“the market”) is controlling some of the unknown parameters of the market (e.g., the underlying probability measure, representing a model uncertainty problem) and is trying to minimize this maximal utility of the agent. This leads to a worst case scenario control problem for the agent. In the Markovian case, such problems can be studied using the Hamilton–Jacobi–Bellman–Isaacs (HJBI) equation, but these methods do not work in the non-Markovian case. We approach the problem by transforming it into a stochastic differential game for backward stochastic differential equations (a BSDE game). Using comparison theorems for BSDEs with jumps we arrive at criteria for the solution of such games in the form of a kind of non-Markovian analogue of the HJBI equation. The results are illustrated by examples. 相似文献
92.
93.
The authors surveyed consumers for preferences on allergen advisory statements on food labels (N = 1,243). They also conducted an experiment to assess how consumers use advisory statements (N = 4,049) to make food consumption decisions. Results show that food allergic individuals, including caregivers to food allergic individuals, and a control group of nonallergic people preferred “Allergen Information: May Contain …” over three other statements tested. The experiment revealed measurable differences among the statements in how they are used to make food consumption decisions. Statements rated as more believable and more helpful also received higher ratings on a “likelihood of eating/serving” measure. 相似文献
94.
ABSTRACTFor media planners to combine multiple media across platforms to maximize synergy is a critical challenge within integrated marketing communication. For this study, in-depth interviews were conducted with experienced media specialists in leading agencies to explore how they integrate different out-of-home advertising media platforms in IMC strategies. The feedback of these experts was then used to propose a model of strategies to enhance synergy within out-of-home advertising campaigns. This model is a first of its kind for planning out-of-home advertising media across platforms and bridges a gap in the existing literature on media synergy and out-of-home advertising media strategy. 相似文献
95.
This paper contributes to the literature on intra- and inter-firm knowledge transfer by examining knowledge acquisition by Korean international joint ventures from their foreign parents. A conceptual model is presented which identifies the factors that have been found to influence knowledge transfer, organised into variables related to the local recipient firm, the foreign sender firm and the relationship between the two. The model is examined by means of a series of multiple regressions using a sample of 128 Korean international joint ventures. We find that: (1) the international joint ventures intent to learn and international experience; (2) the level of trust between parents and their business relatedness; and (3) the active managerial engagement of the foreign parent are the most important factors explaining the level of knowledge acquisition within the international joint ventures. 相似文献
96.
Mathias Beiglböck Pierre Henry-Labordère Friedrich Penkner 《Finance and Stochastics》2013,17(3):477-501
In this paper we investigate model-independent bounds for exotic options written on a risky asset using infinite-dimensional linear programming methods. Based on arguments from the theory of Monge–Kantorovich mass transport, we establish a dual version of the problem that has a natural financial interpretation in terms of semi-static hedging. In particular we prove that there is no duality gap. 相似文献
97.
Cultural diversity is an inescapable reality and a concern in many businesses where it can often raise ethical questions and dilemmas. This paper aims to offer suggestions to certain problems facing managers in dealing with cultural diversity through the inspiration of Thomas Aquinas. Although he may be perceived as a voice from the distant past, we can still find in his writings helpful and original ideas and criteria. He welcomes cultural differences as a part of the perfection of the universe. His systemic approach leads one to place the problem in its proper context, and to reflect on it from the perspective of virtue ethics, with a central role for practical wisdom and giving primacy to neighborly love and natural moral law. Rather than a set of rigid standards with no consideration of diversity Aquinas focuses on the common human ground, which allows for the indispensable dialogue between different positions. When dealing with practical questions, the problem is one of finding the right balance between general principle and cultural specifics, tolerance, and dialogue, always guided by practical wisdom. In this way, Aquinas’ approach is neither rigid ethical universalism with no consideration for diversity nor moral relativism with no place for any transcultural and absolute morals. 相似文献
98.
We propose an extension of the standard general equilibrium model with production and incomplete markets to situations in
which (i) private investors have limited information on the returns of specific assets, (ii) managers of firms have limited
information on the preferences of individual shareholders. The extension is obtained by the assumption that firms are not
traded directly but grouped into ‘sectorial’ funds. In our model the financial policy of the firm is not irrelevant. We establish
the existence of equilibria and discuss the nature of the inefficiencies introduced by the presence of asymmetric information.
We also illustrate the properties of the model in three simple examples.
We would like to thank Alberto Bisin, Armando Dominioni, Piero Gottardi, Tito Pietra, Paolo Siconolfi, and an anonymous referee
for useful suggestions and comments. 相似文献
99.
The present paper analyzes the choices faced by European employers when threatened with the prospect of the mass lay-off of their employees as a result of the Great Recession. By means of a representative survey among employers in Italy, Germany, Denmark, Poland, the Netherlands and Sweden in 2009, we show that employers mainly prefer to tackle such threats by offering short-time work, and by early retirement packages to older workers, in conjunction with buy-outs. The latter preference is particularly visible in countries where employers perceive the level of employment protection to be high. The only notable exception is Denmark, where employers prefer to reduce working hours. In general, a sense of generational fairness influences downsizing preferences, with those employers who favor younger workers particularly likely to use early retirement and buy-outs when downsizing, followed by working time reductions. Wage reductions and administrative dismissal are less favored by European employers. In particular, CEOs and owners are more inclined than lower-level managers to cut wages. 相似文献
100.
This paper develops a theory of optimal fertility behavior under mortality shocks. In an OLG model, young adults determine
their optimal fertility, labor supply and life-cycle consumption with both exogenous child and adult mortality risks. We show
that a rise in adult mortality exerts an ambiguous effect on both net and total fertility in a general equilibrium framework, while child mortality shocks unambiguously lead to a rise in
total fertility, leaving net fertility unchanged. We complement our theory with an empirical analysis using a sample of 39
Sub-Saharan African (SSA) countries over the 1980–2004 period, examining the overall effects of the child and adult mortality
channels on both total and net fertility. We find child mortality to exert a robust, positive impact on total fertility but
no impact on net fertility, whereas a rise in adult mortality is found to negatively influence both total and net fertility.
Given the particular demographic profile of the HIV/AIDS epidemic (killing essentially young, active adults), we then conclude
in favor of an unambiguous negative effect of the HIV/AIDS epidemic on net fertility in SSA. 相似文献