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排序方式: 共有110条查询结果,搜索用时 171 毫秒
1.
Byungjun Yu Saixing Zeng Hongquan Chen Xiaohua Meng Chiming Tam 《Business Strategy and the Environment》2021,30(1):1-20
Family firms bear two types of agency costs, including type I and type II agency problems, in corporate environmental practices: (1) Outside executives at family firms hesitate to engage in environmental strategies, which can lead to drops in profits; (2) Controlling families employ opportunistically environmental management to achieve their interests. We argue that a primary cause for the agency problems lies on ineffective internal corporate governance at family firms, which can cause loss of managerial (or power) balance between outside executives and family executives. Our findings show that family firms with ownership and strategic control (FSC), which family executives and outside executives monitor and constrain each other, can achieve the highest environmental performance. Moreover, external controls, including product market competition and provincial environmental regulations, substitute effective internal control of FSC. The environmental performance premium of FSC is more prevalent when the production market competition is lower. Family firms with ownership, operational, and strategic control (FOSC) can achieve higher environmental performance within a province with more stringent environmental regulations. 相似文献
2.
Tamás Rudas 《Quality and Quantity》1991,25(4):345-358
The present paper considers some new models for the analysis of multidimensional contigency tables. Although the theoretical background used here appeared already in Haberman (1974), prescribed conditional interaction (PCIN) models were introduced by Rudas (1987) and their mathematical properties were worked out by Leimer and Rudas (1988). These models are defined by prescribing the values of certain conditional interactions in the contingency table. Conditional interaction is defined here as the logarithm of an appropriately defined conditional odds ratio. This conditional odds ratio is a conditional version of a generalization of the well known odds ratio of a 2×2 table and that of the three factor interaction term of a 2×2×2 table and applies to any number of dimensions and any number of categories of the variables. The well known log-linear (LL) models are special PCIN models. Estimated frequencies under PCIN models and tests of fit can be computed using existing statistical software (e.g. BMDP). The paper describes the class of PCIN models and compares it to the class of association models of Goodman (1981). As LL models are widely used in the analysis of social mobility tables, application of more general PCIN models is illustrated. 相似文献
3.
Tam Harbert 《电子经理世界》2006,(9):17
VoIP电话基础设施设备市场在快速增长并不断变化,在今后几年可能会有全新的设备投放市场。准确预测市场需要什么类型的设备是很难的,因为IP多媒体子系统(IMS)这个即将出台的体系结构标准将包含一些老设备类型,并导致全新设备类型的出现。位于美国加州Campbell的市场调查公司Infonetics Re- search的分析师Ste phane Te ral介绍说, IP多媒体子系统标准定义了3种功能:归属用户服务、会话呼叫控制功能和媒体资源功能。尽管所有大公司均计划实施IMS,但它们几乎没有交付什么设备。 相似文献
4.
We propose a simple checklist for the users of policy supporting research in order to decide whether a piece of research begs further study or can be dismissed right away. The checklist focusses on the quality of the research question (is it a research question, and is the research question answerable); the kind of knowledge along with the order, level and quality of data needed for answering the RQ; the methods of analysis used; the degree to which the research results support the conclusions; and whether the conclusions provide an answer to the research question. 相似文献
5.
Mei Ling Tam 《Journal of Air Transport Management》2011,17(2):74-79
Passenger orientation (wayfinding) is one of the important factors for the layout design of airport terminals. It is common that some people have difficulties in locating their destinations in spite of availability of wayfinding aids. Visibility index is commonly used to evaluate the ease of wayfinding. However, there is a lack of studies for the determination of the appropriate locations for setting up wayfinding aids in airport terminals so as to enhance the ease of wayfinding. In this paper, a binary linear program is proposed for better allocation of directional signs for wayfinding. The proposed model can be widely applied to practical situations so as to improve the design of signage system in various enclosed environments including airport terminals, multi-function railway stations, and shopping malls. 相似文献
6.
Quality & Quantity - Oppositional culture theory posits that students who belong to oppressed ethnic minority groups define their ethnic identity in opposition to the majority of students.... 相似文献
7.
Tamás K. Papp 《Review of Economic Dynamics》2013,16(3):540-552
I examine whether a version of the Cahuc et al. (2006) model can match the magnitude of wage dispersion, as measured by the ratio of the average and the lowest wage — the so-called mean-min ratio of Hornstein et al. (2011). I find that the workers? bargaining power is a crucial parameter: the mean-min ratio strictly decreases in the bargaining power up to a point near 1/2 and is essentially flat thereafter, generating the same amount of wage dispersion as the canonical wage ladder model, which is a special case of the CPVR model. Consequently, this model can yield large wage dispersion only for low bargaining power on the workers? side. I show that the share of job-to-job transitions with wage drops is decreasing in the bargaining power, calibrate the latter to the former, and demonstrate that the CPVR model generates an empirically plausible amount of wage dispersion. I also show that negative wages arise when workers have no bargaining power, and discuss the implications for the empirical findings of Postel-Vinay and Robin (2002b). 相似文献
8.
Mo-Yin S Tam 《Journal of Comparative Economics》1979,3(3):277-284
This paper considers an incentive structure BT as an alternative to the incentive structure BD recently suggested by Domar. Both of these incentive structures induce managers in a planned economy to provide the socially desirable output level while allowing them to set prices. In two aspects BT is better than BD. First, BD works only if demand is elastic at the optimal output level while BT works whether demand is elastic or inelastic at that level. Second, even when demand is elastic at the optimal level, there are circumstances for which output converges to the optimal level faster under BT than under BD. 相似文献
9.
B.R. Orton L. Sjöberg J. Jung D. ürge-Vorsatz M. Tamássyné-Bíró 《Journal of Risk Research》2013,16(1):17-29
Perceptions of risks from two groups of industrial radiographers, one from Hungary, (n = 45) and from the United Kingdom, (n = 29) were compared by the psychometric method. The comparison was made because both groups were at risk for high doses of ionizing radiation. We found the groups had similar demographic profiles but poor socio-economic conditions of Hungarians were associated with higher levels of emotional distress. Correlation HU-UK for personal and general risks were at a significant level for topics that included lifestyle and radiation risks. Perceptions of risks from radiation were small except for large personal risk from East European nuclear power plants. Knowledge of radiation risk intranationally was correlated positively with personal risk for UK radiographers and negatively for Hungarians. However, average overall risk perceptions from the same topic list for all radiographers did not differ significantly from a group (n = 1461) of UK citizens, though radiographer's risks from radiation were considerably greater. As a new lifesaving intervention it was proposed that radiation risk reduction could be achieved by genetic testing. 相似文献
10.
This paper examines the relative effectiveness of forming implementation intentions (i.e., making specific plans regarding how to go about achieving a goal) for increasing goal attainment under regulatory fit vs. nonfit. We discuss and empirically test the proposition that regulatory nonfit increases the effectiveness of implementation intentions. Extant research contrasts goals of differing difficulty (e.g., buying a textbook vs. finding an apartment) in order to test the relative effectiveness of implementation intentions. In contrast, the present study focuses on identifying the change in implementation intention effectiveness for the same goal (i.e., collecting and turning in receipts for a reward) under conditions of fit vs. nonfit. We empirically demonstrate that when faced with the same goal, people who experience regulatory nonfit perceive the task to be more difficult to complete than people who experience regulatory fit. In turn, when the task is perceived as being more difficult, implementation intentions prove more effective to enhance goal attainment. Our study provides insight into the interaction between regulatory fit and implementation intentions and subsequent effects on goal attainment. 相似文献