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排序方式: 共有193条查询结果,搜索用时 937 毫秒
51.
Igor Goncharov Allan Hodgson Suntharee Lhaopadchan Sonia Sanabria 《Accounting & Finance》2013,53(1):163-184
This paper examines whether the ‘external governance’ imposed by comparative financial accounting standards reduces the trading advantage of insiders. We do this by directly comparing insider trading returns and insider’s ability to predict future earnings from accruals in Spain and Australia. Results show higher excess returns and greater prediction of future earnings from conditioned insider trading in Australia that is then utilized by financial analysts to lower forecast errors – particularly in contrarian‐based accruals trading. Possible explanations include: (i) a high asymmetric quality for market‐based accruals, (ii) information transfer from informed insiders to uninformed insiders and financial analysts and (iii) a more timely dissemination of financial information in Spain through different ownership and governance structures. 相似文献
52.
This paper provides new survey evidence on managerial entrenchment and the role of outsiders in the post-privatization restructuring of Russian enterprises. The major findings are that managers are hostile towards outside ownership, and they effectively collude with other employees to preserve insider control. The paper also provides empirical evidence that the gradual accumulation of shares by managers is not based only on a profit motive, but is also driven by their efforts to preserve insider control. The issues raised have relevance to other transition economies where the privatization process has encouraged insider control, such as Ukraine and Belarus. 相似文献
53.
Dan Cuperman Igor M. Verner 《International Journal of Technology and Design Education》2013,23(4):849-866
This paper considers an approach to studying issues in technology and science, which integrates design and inquiry activities towards creating and exploring technological models of scientific phenomena. We implemented this approach in a context where the learner inquires into a biological phenomenon and develops its representation in the form of a robotic model. Our multi-case study involved middle school students and prospective teachers. We considered learning processes, in which the learners used PicoCricket robot construction kits to create a variety of bio-inspired robotic models. We present two such models and the teaching strategy which organizes modeling activities into five learning stages. Based on analysis of learning activities and their outcomes along with the studied cases, we explored characteristics of the learning environment and of the proposed integrative teaching approach. The findings indicate the potential of modeling as a thread, tying together engineering design and scientific inquiry into an integrative learning activity. 相似文献
54.
Evolutionary stable stock markets 总被引:4,自引:0,他引:4
Summary. This paper shows that a stock market is evolutionary stable if and only if stocks are evaluated by expected relative dividends. Any other market can be invaded in the sense that there is a portfolio rule that, when introduced on the market with arbitrarily small initial wealth, increases its market share at the incumbents expense. This mutant portfolio rule changes the asset valuation in the course of time. The stochastic wealth dynamics in our evolutionary stock market model is formulated as a random dynamical system. Applying this theory, necessary and sufficient conditions are derived for the evolutionary stability of portfolio rules when relative dividend payoffs follow a stationary Markov process. These local stability conditions lead to a unique evolutionary stable portfolio rule according to which assets are evaluated by expected relative dividends (with respect to the objective probabilities).Received: 7 October 2003, Revised: 18 January 2005, JEL Classification Numbers:
G11, D52, D81.
Correspondence to: Klaus Reiner Schenk-HoppéWe are grateful to Jarrod Wilcox and William Ziemba for valuable comments. Financial support by the national center of competence in research Financial Valuation and Risk Management is gratefully acknowledged. The national centers in research are managed by the Swiss National Science Foundation on behalf of the federal authorities. 相似文献
55.
As the need for more diversity in business ethics is becoming more pressing in our global world, we provide an historical
study of a Fair Trade (FT) movement, born in rural Mexico. We first focus on the basic assumptions of its founders, which
include a worker–priest, Frans van der Hoff, a group of native Indians and local farmers who formed a cooperative, and an
NGO, Max Havelaar. We then review both the originalities and challenges of the FT movement and its potential contributions
to the current theories and practices in business ethics. 相似文献
56.
We analyse questions of arbitrage in financial markets in which asset prices change in time as stationary stochastic processes.
The main focus of the paper is on a model where the price vectors are independent and identically distributed. In the framework
of this model, we find conditions that are necessary and sufficient for the absence of arbitrage opportunities. We discuss
the relations between the results obtained and the phenomenon of “volatility-induced growth” in stationary markets.
Financial support by the Swiss National Center of Competence in Research “Financial Valuation and Risk Management” (NCCR FINRISK)
is gratefully acknowledged. 相似文献
57.
The Who,Where, What,How and When of Market Entry 总被引:1,自引:0,他引:1
Gideon D. Markman Peter Gianiodis G. Tyge Payne Christopher Tucci Igor Filatotchev Reddi Kotha Eric Gedajlovic 《Journal of Management Studies》2019,56(7):1241-1259
This introductory, along with the eight articles contained within this Special Issue, highlights and brings greater clarity to entrant‐incumbent interactions and to firm movement – when entrants traverse market territories for the creation and/or delivery of offerings, where ‘markets’ include service or product categories, technology or resource spaces, industries, sectors and/or geographies. Collectively, this Special Issues explains that firm movement across market boundaries is highly consequential, influencing resource‐capability mixes inside firms, interfirm relations, market logic and industry value chains, and of course, people, communities and even nations. Specifically, we develop a field‐wide perspective of market entry by expanding on the framework of market entry that Zachary and his colleagues developed (Zachary et al., 2015) – i.e., the who (players such as incumbents, entrants, suppliers, etc.), when (the timing and sequence of entry), how (the strategy, resources, capabilities, etc.), where (the space of entry) and what (product, service, business model, etc.) – to include two additional categories: complements (networks, platforms, ecosystems) and non‐market elements (government, political, social and cultural arrangements). We also summarize the eight highly diverse and insightful articles that make this Special Issue, and conclude with a discussion to highlight foundational questions that point to new directions in future research in this field. In sum, we hope to inspire scholars to go beyond counting outcomes (e.g., entry/exit rates, or profiling successful versus unsuccessful entrants), to consider contexts, processes and contingencies (e.g., cost, time, collaboration, competition, interfirm relations, etc.) and to discover boundary conditions that inform a theory of market entry. 相似文献
58.
Andrijana Bačević Nemanja Vilimonović Igor Dabić Jakov Petrović Darko Damnjanović Dušan Džamić 《工程经济学家》2019,64(3):254-274
AbstractIn this article we consider a portfolio optimization problem under multiple real-world constraints, such as: cardinality constraints, tracking error, active share, and turnover. We propose a heuristic based on variable neighborhood search (VNS) that effectively addresses additional constraints that introduce non-convexities. In the VNS-based heuristic, several neighborhood structures are introduced and fast local search is implemented. We develop a VNS portfolio rebalancing framework (VNS-PRF) with two rebalance strategies. Data sets provided by a financial investment firm are used to evaluate the validity and reliability of the proposed VNS-PRF. Computational experiments and different portfolio performance measures indicate that our approach is able to obtain solutions with competitive quality and can be applied on large-scale data sets. 相似文献
59.
Igor?FilatotchevEmail author Salim?Chahine Mike?Wright Mufit?Arberk 《The International Entrepreneurship and Management Journal》2005,1(4):419-439
Using a unique sample of 444 entrepreneurial IPOs in the UK and France this paper examines links between founders' characteristics,
venture capital (VC) syndication and the development of effective boards in entrepreneurial firms. It argues that VC-backed
IPOs suffer from two sets of agency problems which are related to principal-agent and principal-principal relationships between
the founders and members of the VC syndicate. The empirical evidence shows that there is a curvilinear relationship between
the intensity of founders' external ties and VC syndication. Founders' retained share ownership is negatively associated with
VC syndication. We also find that in syndicated IPOs there is a higher involvement of passive private equity firms and “business
angels” investing alongside VC firms, both in terms of their number and equity presence. VC-syndicated IPOs have more independent
boards than IPOs with no VC involvement. Board independence is negatively associated with founders' retained equity. These
results are consistent with the assumption that board independence is used to mitigate agency costs associated with VC involvement
in IPO firms. Our findings also identify significant differences in governance characteristics between the UK and France.
While French IPOs have less independent boards, they involve more VC backing in general and syndicated VC funding in particular,
than UK IPOs. 相似文献
60.
Traditionally, R&D studies focus on organisational characteristics and internal context factor effects on a firm's R&D activities. This paper extends previous research by analysing firm–level R&D expenditures in the wider context of inter–organisational networks. Using sample of 2002 manufacturing firms in Italy, it provides evidence that R&D intensity is linked to a firm's positioning within an industrial group's hierarchy. Further tests on the antecedents of R&D expenditures are carried out in relation to the effects of firm characteristics and industry factors. Important findings include a significant and positive association between R&D intensity and the firm's size, performance, intangible assets and industry concentration. These findings suggest that, in addition to firm–level factors and its market environment, network resources and organisation may play an important role in driving the intensity of the firm's R&D expenditures. 相似文献