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41.
Based on the work of Suzuki, we consider a generalization of Merton’s asset valuation approach in which two firms are linked by cross-ownership of equity and liabilities. Suzuki’s results then provide no arbitrage prices of firm values, which are derivatives of exogenous asset values. In contrast to the Merton model, the assumption of lognormally distributed assets does not result in lognormally distributed firm values, which also affects the corresponding probabilities of default. In a simulation study we see that, depending on the type of cross-ownership, the lognormal model can lead to both over- and underestimation of the actual probability of default of a firm under cross-ownership. In the limit, i.e. if the levels of cross-ownership tend to their maximum possible value, these findings can be shown theoretically as well. Furthermore, we consider the default probability of a firm in general, i.e. without a distributional assumption, and show that the lognormal model is often able to yield only a limited range of probabilities of default, while the actual probabilities may take any value between 0 and 1. 相似文献
42.
Sunspot equilibrium and lottery equilibrium are two stochastic solution concepts for nonstochastic economies. We compare these concepts in a class of completely finite, (possibly) nonconvex exchange economies with perfect markets, which requires extending the lottery model to the finite case. Every equilibrium allocation of our lottery model is also a sunspot equilibrium allocation. The converse is almost always true. There are exceptions, however: For some economies, there exist sunspot equilibrium allocations with no lottery equilibrium counterpart. 相似文献
43.
Karl G. Høyer 《Journal of Sustainable Tourism》2013,21(2):147-160
This paper presents a critical discussion of the internationally prevailing understanding of the concept 'sustainable tourism'. It is argued that the current focus on stationary activities and local, intensive environmental issues is too limited both in relation to the concept of tourism and the concept of sustainable development. There is no tourism without travel. And, as shown in a Norwegian research study, tourist travel is a major source of serious environmental problems. The paper emphasises that sustainable tourism should be linked to a concept of sustainable mobility. However, this mobility would imply not only a change in the means of transport but also a reduced level of mobility in the rich part of the world. As this would entail new forms of tourism, other than those solely based on auto- and aeromobility, it represents a major challenge for the future development of tourism. 相似文献
44.
The increase in professional trips to conferences and seminars made by employees in the 'knowledge industries' presents an environmentally worrying trend in mobility in contemporary post-industrial society. A number of factors are involved. Globalisation and regional competition encourage host cities and institutions to put themselves on the conference map. For the individual traveller, conferences and seminars offer escape from daily routines and the chance to experience new, perhaps exotic, places. But trips to distant conferences can have serious environmental impacts, especially if made by airplane. Because of the aggressive impact of greenhouse gas emissions in the upper atmosphere, their threat to the global climate is more serious than similar trips made at surface level. In addition, the time spent on such trips competes with other tasks: conference participation takes scarce time resources available to university academics for research. In the age of electronic communication, it is questionable whether conferences are effective arenas for communicating and gathering knowledge. 相似文献
45.
Karl Aiginger 《Empirica》1981,8(2):263-275
Zusammenfassung Feldstein lenkt die Aufmerksamkeit von Politik und Ökonomie auf die Erhöhung der Steuerbelastung für die Unternehmungen, die bei Inflation durch die Abschreibung zu historischen Kosten (bei gleichem Steuertarif) entsteht. Er errechnet eine Formel für die Extrasteuer je Prozentpunkt Inflation, in der ein bestimmter effektiver Steuersatz eine Rolle (als Konstante) spielt. Dieser soll die Wirkung der weltweit üblichen Systeme der Investitionsbegünstigung (z. B. vorzeitige Abschreibung) berücksichtigen. Eine weitere Betrachtung dieser Systeme scheint dann nicht nötig, weil sie schon vor der Inflation geschaffen wurden. Tatsächlich hängt aber die Höhe des sogenannten effektiven Steuersatzes selbst von der Inflation ab. Der Wert der vorzeitigen Abschreibung steigt in der Inflation und wirkt der Steuererhöhung entgegen. Im Extremfall einer sofortigen vollen Abschreibung wird die Extrasteuer Null.Die stärkere Vorteilhaftigkeit der vorzeitigen Abschreibung in der Inflation (verglichen mit der Normalabschreibung zu historischen Kosten) läßt eine stärkere Ausnutzung der vorzeitigen Abschreibung im inflationären Fall erwarten. Gründe gegen die volle Ausnutzung dieser Begünstigung (fehlende Gewinne, Informationskosten) bei stabiler und inflationärer Preisentwicklung werden diskutiert. 相似文献
46.
Khat-chewing, a controversial leisure activity within the Somali diaspora in Britain, has received little attention within the academic field of Leisure Studies. This paper reports on ethnographic research to provide insights into the unique locations where young British-Somali men chew khat, exposing the liminal qualities of such localities. The paper begins with an overview of the contentious position khat-chewing occupies within Somali communities in Britain, highlighting reasons why young British-Somali men hide their association with the leisure practice. The discussion that follows considers how young male khat users conceptualise spatial environments, exposing how these locations temporarily produce a dual sense of privacy and sociality. The ambiences of such temporary leisure spaces remain open to the prospect of discovery, resulting in the use of discretionary tactics to maintain a sense of secrecy. In this context, we discuss how khat-chewing offers a sense of cultural identity and belongingness while also marking young British-Somali men as outsiders – even within their own communities. 相似文献
47.
This article investigates the every-day street-level practice of green public procurement (GPP) in Sweden, a country with one of the most decentralized systems of public administration within the European Union (EU). The street-level procurement officers in Swedish local and regional government are in charge of purchases estimated to represent between 10% and 15% of Sweden’s GDP. This article examines the constraining and enabling factors behind the individual procurement officer’s choice of green procurement in textiles and clothing through a combination of qualitative interviews and a review of documentary sources. The analysis shows that while indirect support through European and national soft regulation and policy advice is imperative for “greening” procurement, the direct factors which influence the local outcome of GPP comprises factors on the local level: political commitment and environmental knowledge, the organizational structure of local government and the local interpretation of the regulatory framework. This study shows that a decentralized structure has possibilities of furthering ambitions of buying green if there are committed politicians and public officials, an optimal level of internal centralisation and an external support structure of knowledge and enabling rules. 相似文献
48.
Giuseppe Criaco Philipp Sieger Karl Wennberg Francesco Chirico Tommaso Minola 《Small Business Economics》2017,49(4):841-864
We investigate how perceived parents’ performance in entrepreneurship (PPE) affects the entrepreneurial career intentions of offspring. We argue that while perceived PPE enhances offspring’s perceived entrepreneurial desirability and feasibility because of exposure mechanisms, it inhibits the translation of both desirability and feasibility perceptions into entrepreneurial career intentions due to upward social comparison mechanisms. Thus, perceived PPE acts as a double-edged sword for the intergenerational transmission of entrepreneurship. Our predictions are tested and confirmed on a sample of 21,895 individuals from 33 countries. This study advances the literature on intergenerational transmission of entrepreneurship by providing a foundation for understanding the social psychological conditions necessary for such transmission to occur. 相似文献
49.
How young firms achieve growth: reconciling the roles of growth motivation and innovative activities
This special issue focuses on entrepreneurship, innovation and enterprise dynamics, as these key components of any prospering economy are at the heart of the current policy discussion. It gathers the latest national and comparative cross-country evidence about: new business venture formation and the role of framework conditions in fostering entrepreneurial activities; the determinants and outcomes of firms’ innovative activities and, more generally, of business and innovation dynamics; and the determinants and patterns of post-entry firm growth performance. The contributions synthesised in this introductory piece all rely on sound micro-level data and robust econometrics and propose novel findings that are relevant for policy making. Among them, that risk aversion encourages individuals to invest in balanced skill profiles, making them more likely to become entrepreneurs; and that while micro firms may grow when they are young, they are less likely to do so when old. 相似文献
50.
The controversy around fixed-term contracts centres around the conflict between the employer’s need for flexibility and the employee’s need for security. The authors propose flexible contributions for employers to the public unemployment insurance system to balance both interests. The employers’ contributions for their temporary staff would increase while the contributions for their permanent staff would in turn decrease slightly. The authors calculate four versions. With regards to the total sum of contributions, the first version holds the contributions received constant while the second version leads to a reduction. They then repeat these two calculations for fixed-term contracts without substantive grounds. The flexibility premium takes into account the higher unemployment risk of employees with fixed-term contracts and establishes monetary incentives for employers to hire employees with permanent contracts. 相似文献