全文获取类型
收费全文 | 12289篇 |
免费 | 131篇 |
专业分类
管理学 | 1833篇 |
民族学 | 66篇 |
人才学 | 2篇 |
人口学 | 1137篇 |
丛书文集 | 57篇 |
理论方法论 | 998篇 |
综合类 | 134篇 |
社会学 | 5538篇 |
统计学 | 2655篇 |
出版年
2023年 | 63篇 |
2021年 | 77篇 |
2020年 | 211篇 |
2019年 | 279篇 |
2018年 | 305篇 |
2017年 | 407篇 |
2016年 | 310篇 |
2015年 | 220篇 |
2014年 | 282篇 |
2013年 | 2117篇 |
2012年 | 363篇 |
2011年 | 363篇 |
2010年 | 282篇 |
2009年 | 258篇 |
2008年 | 278篇 |
2007年 | 310篇 |
2006年 | 247篇 |
2005年 | 256篇 |
2004年 | 243篇 |
2003年 | 239篇 |
2002年 | 271篇 |
2001年 | 292篇 |
2000年 | 277篇 |
1999年 | 248篇 |
1998年 | 198篇 |
1997年 | 185篇 |
1996年 | 177篇 |
1995年 | 172篇 |
1994年 | 165篇 |
1993年 | 154篇 |
1992年 | 195篇 |
1991年 | 177篇 |
1990年 | 161篇 |
1989年 | 153篇 |
1988年 | 153篇 |
1987年 | 143篇 |
1986年 | 131篇 |
1985年 | 152篇 |
1984年 | 163篇 |
1983年 | 188篇 |
1982年 | 131篇 |
1981年 | 124篇 |
1980年 | 117篇 |
1979年 | 126篇 |
1978年 | 130篇 |
1977年 | 114篇 |
1976年 | 109篇 |
1975年 | 100篇 |
1974年 | 77篇 |
1973年 | 73篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
Coopetition has become a heated issue in the last decade. In this study, a scrutinized review of previous research on coopetition is presented to clarify the research stream on coopetition, from which the implications are derived and a framework to analyse the phenomenon is proposed. Given the complex nature of coopetition, an in‐depth case study was undertaken to investigate the competition–cooperation relationship and coopetition performance over a 15‐year period in a Taiwanese supermarket network, which was formed by a focal company and its competitors. Performance was analysed before and after launching the coopetition strategy, in which 31 indicators were examined. The findings imply that competition (Yang) and cooperation (Yin) are reciprocally rooted in and mutually promoted by each other. The findings also confirmed that cooperation with competitors did lead to better performance, at least over a period, in two ways. The first was that the adoption of coopetition permitted the attainment of performance levels beyond what would otherwise have been possible; the second was that the adoption of coopetition changed the timeframe, permitting earlier achievement of higher performance levels. This study contributes to and extends knowledge of the dynamics and consequences of cooperation with competitors and demonstrates that coopetition has a significant temporary advantage. 相似文献
62.
This paper concerns the forecasting of seasonal intraday time series that exhibit repeating intraweek and intraday cycles. A recently proposed exponential smoothing method involves smoothing a different intraday cycle for each distinct type of day of the week. Similar days are allocated identical intraday cycles. A limitation is that the method allows only whole days to be treated as identical. We introduce a new exponential smoothing formulation that allows parts of different days of the week to be treated as identical. The result is a method that involves the smoothing and initialisation of fewer terms. We evaluate forecasting up to a day ahead using two empirical studies. For electricity load data, the new method compares well with a range of alternatives. The second study involves a series of arrivals at a call centre that is open for a shorter duration at the weekends than on weekdays. Among the variety of methods considered, the new method is the only one that can model in a satisfactory way in this situation, where the number of periods on each day of the week is not the same. 相似文献
63.
K. Michele Kacmar Daniel G. Bachrach Kenneth J. Harris David Noble 《The Leadership Quarterly》2012,23(1):43-54
We develop and test a model that builds directly on social exchange theory to predict different roles for supervisor trust in the relationships between organizational citizenship behavior and relationship conflict occurring between supervisors and subordinates and between peers. Specifically, we posit that the association between citizenship behavior and relationship conflict between employees and supervisors is mediated by supervisor trust, while the association between citizenship behaviors and relationship conflict occurring between peers is moderated by supervisor trust. We test our dual role for supervisor trust in a field study of 160 supervisor–employee dyads. Results support the different roles played by supervisor trust. We close by discussing the implications of our results for theory and practice in the relationship conflict and citizenship domains. 相似文献
64.
Raymond Deneckere James Peck 《Econometrica : journal of the Econometric Society》2012,80(3):1185-1247
This paper studies a dynamic model of perfectly competitive price posting under demand uncertainty. Firms must produce output in advance. After observing aggregate sales in prior periods, firms post prices for their unsold output. In each period, the demand of a new batch of consumers is randomly activated. Existing customers who have not yet bought and then new customers arrive at the market in random order, observe the posted prices, and either purchase at the lowest available price or delay their purchase decision. We construct a sequential equilibrium in which the output produced and its allocation across consumers is efficient. Thus consumers endogenously sort themselves efficiently, with the highest valuations purchasing first. Transaction prices in each period rise continuously, as firms become more optimistic about demand, followed by a market correction. By the last period, prices are market clearing. 相似文献
65.
N. Bourgeois A. Giannakos G. Lucarelli I. Milis V. T. Paschos O. Pottié 《Journal of Combinatorial Optimization》2012,23(1):94-117
In this paper, we deal with the problem of finding quasi-independent sets in graphs. This problem is formally defined in three
versions, which are shown to be polynomially equivalent. The one that looks most general, namely, f-max quasi-independent set, consists of, given a graph and a non-decreasing function f, finding a maximum size subset Q of the vertices of the graph, such that the number of edges in the induced subgraph is less than or equal to f(|Q|). For this problem, we show an exact solution method that runs within time
O*(2\fracd-27/23d+1n)O^{*}(2^{\frac{d-27/23}{d+1}n}) on graphs of average degree bounded by d. For the most specifically defined γ-max quasi-independent set and k-max quasi-independent set problems, several results on complexity and approximation are shown, and greedy algorithms are proposed, analyzed and tested. 相似文献
66.
Dimitri G Demekas 《LABOUR》1995,9(1):3-44
ABSTRACT: The paper surveys three broad categories of labor market institutions in Italy: employment protection legislation unemployment benefit systems and wage bargaining arrangements In each we the recent evolution and current state of Italian institutions are evaluated and compared With those in other major European countries 相似文献
67.
Decisions to Outsource Information Systems Functions: Testing a Strategy-Theoretic Discrepancy Model
In recent years, the decision to outsource information systems (IS) functions has become a viable strategic alternative in managing the increasingly complex IS functions. In this study, the IS outsourcing phenomenon is conceptualized as a strategic decision in the organization. Drawing on resource-based theories, resource dependence theories, and other theories of strategic management, a discrepancy model of this decision is developed. Relationships between a number of strategy-theoretic factors and the IS outsourcing decision are hypothesized. These factors include IS resource performance discrepancies manifested in the form of gaps in information quality, IS support quality, IS cost effectiveness and financial performance, as well as the strategic orientation of the firm. Results of the study indicate that, while cost consideration and the firm's financial performance are not associated with the IS outsourcing decision, difficulties in providing good information outputs and IS support services are associated with the decision. Overall, the findings suggest that the current trend toward outsourcing represents a continuing evolution of the IS function as it attempts to fulfill its traditional mission of providing high quality information resource to the firm. When the performance of the delivered resource begins to slip in the current environment of rising expectation and technological complexity, outsourcing may become a strategic response of necessity. The paper concludes with a discussion of the implications of the results for practicing managers and suggestions for future research. 相似文献
68.
The dramatic growth of interorganizational systems (IOS) has changed the way organizations conduct their business, and has resulted in significant tangible and intangible benefits being realized by participating firms. However, the implementation of these IOS requires the cooperation and commitment of all the participating members. These members may have complex economic and business relationships among themselves that can result in a number of social, political, and economic factors influencing the adoption and implementation of IOS. This study examines the role of interorganizational and organizational factors on the decision mode for adoption of IOS, in the specific context of electronic data interchange (EDI). Four interorganizational factors, based on the socio-political framework derived from research in marketing, and five organizational factors based on research in IS were used in the study. The data for the study were collected through a large scale field survey. Two respondents, the sales/purchase manager and the IS manager, from 201 firms responded to the survey. The results of discriminant analysis of the data reveal that two interorganizational variables, competitive pressure and exercised power, and two organizational variables, internal need and top management support, are important variables to differentiate firms with proactive decision mode from firms with reactive decision mode. The study also evaluates the differences between proactive and reactive firms on three implementation outcomes. Proactive firms are found to have greater extent of adaptation, more external connectivity with trading partners, and better integration of EDI information in their internal IS applications. 相似文献
69.
Despite the impact that Deming and his 14 Points have had on the practice of quality management, empirical support for the effectiveness of the Deming Management Method has not advanced beyond the presentation of anecdotal, case-study evidence. In part, this is because theory to guide the conduct of empirical research has not been available. Only recently has such a theory of quality management to describe and explain the effectiveness of the Deming Management Method been articulated in the literature. This paper continues the journey of theory development; it reports the results of an exploratory empirical analysis of an articulated theory of quality management underlying the Deming Management Method. The constructs in the proposed theory are operationalized using measurement statements developed by the World-Class Manufacturing research project team at the University of Minnesota and Iowa State University. Path analysis is applied to the World-Class Manufacturing project data to explore the empirical strength of relationships advanced in the theory. The path analytic results provide support for several of the proposed relationships in the theory, and more importantly, suggest a number of new relationships which have not heretofore been proposed. 相似文献
70.
Massimo G. Colombo Evila Piva Anita Quas Cristina Rossi-Lamastra 《Long Range Planning》2021,54(3):102026
This paper contributes to studies on dynamic capabilities (DCs) by showing that a neglected environmental contingency – i.e. the occurrence of a jolt – shapes the DCs–performance relationship. We focus on high-tech entrepreneurial ventures because these are the firms that jolts affect most; in so doing, we also advance the understanding of DCs in the entrepreneurship field. We argue that, in the aftermath of an environmental jolt, the high-tech entrepreneurial ventures that use internationalization and new product development capabilities to modify their resource configuration and regain environmental fit enjoy better performance. Econometric estimates on a sample of 340 Italian high-tech entrepreneurial ventures confronting the consequences of the global economic crisis that began in 2008 confirm that separately using these two DCs has a positive performance effect. This effect is stronger for relatively smaller ventures. Interestingly, despite synergies should arise from the combined use of the two DCs, we do not detect any superadditive effects. 相似文献