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排序方式: 共有215条查询结果,搜索用时 18 毫秒
1.
In this paper, we present a practical methodology for variance estimation for multi‐dimensional measures of poverty and deprivation of households and individuals, derived from sample surveys with complex designs and fairly large sample sizes. The measures considered are based on fuzzy representation of individuals' propensity to deprivation in monetary and diverse non‐monetary dimensions. We believe this to be the first original contribution for estimating standard errors for such fuzzy poverty measures. The second objective is to describe and numerically illustrate computational procedures and difficulties in producing reliable and robust estimates of sampling error for such complex statistics. We attempt to identify some of these problems and provide solutions in the context of actual situations. A detailed application based on European Union Statistics on Income and Living Conditions data for 19 NUTS2 regions in Spain is provided. 相似文献
2.
Prior literature finds that information is reflected in option markets before stock markets, but no study has explored whether option volume soon after market open has predictive power for intraday stock returns. Using novel intraday signed option-to-stock volume data, we find that a composite option trading score (OTS) in the first 30 min of market open predicts stock returns during the rest of the trading day. Such return predictability is greater for smaller stocks, stocks with higher idiosyncratic volatility, and stocks with higher bid–ask spreads relative to their options’ bid–ask spreads. Moreover, OTS is a significantly stronger predictor of intraday stock returns after overnight earnings announcements. The evidence suggests that option trading in the 30 min after the opening bell has predictive power for intraday stock returns. 相似文献
3.
Most models of social preferences and bounded rationality that are effective in explaining efficiency‐increasing departures from equilibrium behavior cannot easily account for similar deviations when they are efficiency‐reducing. We show that the notion of sampling equilibrium, subject to a suitable stability refinement, can account for behavior in both efficiency‐enhancing and efficiency‐reducing conditions. In particular, in public goods games with dominant strategy equilibria, stable sampling equilibrium can involve the play of dominated strategies with positive probability both when such behavior increases aggregate payoffs (relative to the standard prediction) and when it reduces aggregate payoffs. The dominant strategy equilibrium prediction changes abruptly from zero contribution to full contribution as a parameter crosses a threshold, whereas the stable sampling equilibrium remains fully mixed throughout. This is consistent with the available experimental evidence. 相似文献
4.
S. Prakash Sethi 《Journal of Business Ethics》2003,43(1-2):21-31
Large corporations are coming under intense pressure to act in a socially responsible manner. Corporations have accepted this notion provided that it is exercised voluntarily. It has also been argued that corporations can do well by doing good, and that good ethics is good business. This paper presents an alternative viewpoint by demonstrating that while voluntary socially responsible conduct is desirable, it plays a rather small role in inspiring good corporate conduct. Instead, (a) it is the external economic-competitive conditions that define the parameters and opportunities for good corporate conduct; and (b) the values and traditions of the corporations, and their perceived risk in exploiting those opportunities, that influence the extent of a corporation's socially responsible conduct. The framework presented here analyzes certain market-competitive conditions, which determine the scope and direction of socially responsible corporate conduct, and the instruments available to society to enhance ethical corporate conduct. It suggests that from society's perspective, we should move away from the notion of corporate social responsibility and toward corporate social accountability. Most modern economies operate under conditions of imperfect competition where corporations gain above-normal profits, i.e., market rent, from market imperfections. Therefore, corporations should be held accountable for a more equitable distribution of these above-normal profits with other groups, e.g., customers, employees, etc., who were deprived of their market-based gains because of market imperfections and corporate power. Three approaches are suggested for measuring corporate accountability through corrections. These are: information imbalance, bargaining power imbalance, and, adjudication, remedy and relief imbalance. 相似文献
5.
This paper examines the relationship between the rate of software diffusion and piracy. Literature suggests that tolerating some piracy can be justified since it speeds up software diffusion. The question is, how much should be tolerated? Using innovation diffusion models of software adoption by legal buyers and pirates, answers to this question are obtained for the three scenarios of monopoly, multiple generations of software and competitive markets. Results include, for example, that a monopoly should start with minimum protection of its software but well before the product has diffused half way, impose maximum protection and maintain it thereafter. The results provide important strategic guidelines for firms in the software industry for managing piracy. 相似文献
6.
Policy Determinants of School Outcomes under Model Uncertainty: Evidence from South Africa 下载免费PDF全文
Fabrice Murtin Thomas Laurent Geoff Barnard Dean Janse van Rensburg Vijay Reddy George Frempong Lolita Winnaar 《The South African journal of economics. Suid-afrikaanse tydskrif vir ekonomie》2015,83(3):317-334
In this paper, we assess the determinants of secondary school outcomes in South Africa. We use Bayesian model averaging techniques to account for uncertainty in the set of underlying factors that are chosen among a very large pool of explanatory variables in order to identify the subset of explanatory variables most strongly associated with the dependent variable. Our analysis indicates that the socio‐economic background of pupils, demographic characteristics such as population groups (Black and White), as well as geographical locations account for a significant variation in pupils’ achievement levels. We also find that the most robust policy determinants of pupils’ test scores are the availability of a library at school, the use of IT in the classroom as well as school climate. 相似文献
7.
The authors explore the relation between the way different family firms are named, and the shareholder value impact of these firms’ new product introductions. Using an event study of 1,294 product introduction announcements of 107 publicly listed U.S. family firms, the authors find that the presence of the founding family’s name as part of a family firm’s name acts as a valuable firm resource, increasing the abnormal stock returns surrounding the firm’s new product introductions. Superior returns to family-named firms’ new product introductions are partially mediated by these firms’ history of ethical product-related behavior: family-named firms, particularly those with corporate branding, and those wherein a founding family member holds the CEO or chairman position, are more likely to exhibit a history of avoiding such product-related controversies as product safety issues, and deceptive advertising. The authors highlight the managerial and theoretical contributions of this research. 相似文献
8.
Expected to touch US$55 billion in 2016, the e-commerce market in India presents an unprecedented growth opportunity for retailers. Existing studies have identified factors influencing shoppers’ online behaviour pertaining to the developed economies. Hence, it becomes pertinent to validate these antecedents for the economies like India. The article addresses this gap by examining the role of shopping values and web atmospherics, on e-satisfaction of Indian shoppers. Using multiple regression analysis, it also examines the influence of e-satisfaction on repurchase intention. The findings suggest that effectiveness of information content has the most significant impact on e-satisfaction. Web entertainment, utilitarian values and web informativeness are the other influencing factors. Contrary to the earlier studies, this study didn’t find any influence of hedonic shopping values on shoppers’ satisfaction. Also, e-satisfaction was found to have a positive influence on repurchase intention of e-shoppers. The article suggests select strategies that can be adopted by e-retailers. 相似文献
9.
Vijay Sethi Anand Jeyaraj Kevin Duffy Berkwood Farmer 《Journal Of Asia-Pacific Business》2017,18(4):262-274
Educators continue to utilize add-ons, extensions, or replacements to traditional Learning Management Systems (LMSs) to supplement capabilities and improve the classroom experience. This work resulted in the design and development of the Education Dashboards for Enhanced Learning (EDEL) template. The EDEL template enables faculty members to create dynamic web spaces called Knowledge Portals (KPortals). A semester-long introduction of KPortals proved to be positive and useful. Students tended to view the KPortal as a “go-to” webspace. The authors hope to refine the template in future studies and examine its usefulness in other countries. 相似文献
10.
S. Prakash Sethi David B. Lowry Emre A. Veral H. Jack Shapiro Olga Emelianova 《Journal of Business Ethics》2011,103(1):1-30
Environmental degradation and extractive industry are inextricably linked, and the industry’s adverse impact on air, water,
and ground resources has been exacerbated with increased demand for raw materials and their location in some of the more environmentally
fragile areas of the world. Historically, companies have managed to control calls for regulation and improved, i.e., more
expensive, mining technologies by (a) their importance in economic growth and job creation or (b) through adroit use of their
economic power and bargaining leverage against weak national governments, regional and international regulatory bodies. More
recently, the industry has had to contend with another set of challenges that involved treatment of indigenous people and
their traditional land rights, fair treatment of workers, human rights abuses, and bribery and corruption involving local
officials and political leaders. These challenges currently fall outside the traditional areas of regulation and control.
Nevertheless, they pose serious threat to the industry’s business practices because of their global scope, threat to company’s
reputation, and long-term risks of political instability leading to increasing cost of capital. Industry has responded to
these challenges by creating voluntary codes of conduct that would signify their intent to comply with higher standards of
conduct, and assuage public opinion that no further action is called for. These codes, however, lack any monitoring mechanism
and reporting integrity to assure the public that the industry members are indeed meeting their commitments. Consequently,
pressure on the industry continues unabated and with ever increasing calls for mandatory regulation and oversight. This article
examines the activities of one mining company, Freeport-McMoRan Copper & Gold, Inc., which has taken a radically different
approach in responding to these challenges at its mining operations in West Papua, Indonesia. While cooperating with industry-based
efforts of voluntary codes of conduct, Freeport also initiated a radically different response through its own voluntary code
that would directly focus on issues of human rights, treatment of indigenous people on whose traditional land its mine was
located; economic development and job creation and, improvements in health, education, and housing facilities, to name a few.
Additionally, the company earmarked large sums of money and involved representatives of the indigenous people in their management
and disbursement. The company took an even more radical action when it committed itself to independent external audits of
the company’s compliance with the code, and that these findings and company’s responses would be made public without prior
censorship by the company. We analyze the nature of corporate culture, vision and risk-taking propensities of its management
that would impel the company to embark on a high risk strategy whose outcomes could not be predicted with any degree of certainty
before the fact. The parent company also had to confront discontent among the management ranks at the mine site because of
cultural differences and management styles of expatriates and local (Indonesian) managers. Finally, we discuss in some detail
the extensive and intensive character of a two phase audit conducted by the outside monitors, their findings, and the process
by which they were implemented and reported to general public. We also evaluate the strengths and challenges posed by such
audits, their importance to the company’s future, and how such projects might be undertaken by other companies. 相似文献