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We develop the concept of a policy bubble to capture the notion of long‐term overinvestment in a policy. In sketching the relation of policy bubbles to economic bubbles, we describe how these two concepts have similar origins but different trajectories because they are filtered by different institutions. We examine in some detail three likely instances of ongoing policy bubbles: crime policy, school reform (charter schools and private education vouchers), and the contracting and privatization of public services. We show how these cases differ from the housing bubble of 1997–2007, how they differ from each other, and the extent to which they can be considered policy bubbles. Last, we suggest this concept can help unify the policy process literature with the practice of policy evaluation and outline testable hypotheses for future research. 相似文献
86.
Studies of political attention often focus on attention to a single issue, such as front‐page coverage of the economy. However, examining attention to a single issue without accounting for the agenda as a whole can lead to faulty assumptions. One solution is to consider the diversity of attention; that is, how narrowly or widely attention is distributed across items (e.g., issues on an agenda or, at a lower level, frames in an issue debate). Attention diversity is an important variable in its own right, offering insight into how agendas vary in their accessibility to policy problems and perspectives. Yet despite the importance of attention diversity, we lack a standard for how best to measure it. This paper focuses on the four most commonly used measures: the inverse Herfindahl Index, Shannon's H, and their normalized versions. We discuss the purposes of these measures and compare them through simulations and using three real‐world datasets. We conclude that both Shannon's H and its normalized form are better measures, minimizing the danger of spurious findings that could result from the less sensitive Herfindahl measures. The choice between the Shannon's H measures should be made based on whether variance in the total number of possible items (e.g., issues) is meaningful. 相似文献
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Dipl.-Geogr. Christoph Markert Dipl.-Geogr. Thomas Zacharias 《Standort - Zeitschrift für angewandte Geographie》2006,30(3):118-122
Abstrakt Immobilienwirtschaft als Partner der Stadtentwicklung? Zugegeben eine Sichtweise, die oftmals in der Ausbildung von Planern
oder Geographen etwas zu kurz kommt. Dabei w?re es oft sinnvoll, bei der Planung auch die Sicht der Immobilienwirtschaft respektive
der künftigen Nutzer zu berücksichtigen. Seit jeher haben sich St?dte auch und vor allem durch die Baut?tigkeit von Privaten
entwickelt. Investitionen der Kommunen und des Staates beschr?nkten sich in der Regel auf technische und soziale Infrastruktureinrichtungen
und das eine oder andere Renommierobjekt, wie beispielsweise Museen, Theater, Opern. In Zeiten knapper ?ffentlicher Kassen
werden selbst dafür zunehmend private Investitionen ben?tigt. In dem sich aktuell versch?rfenden Wettbewerb der St?dte und
Regionen sind Investoren, die zur baulichen und wirtschaftlichen Entwicklung beitragen, wichtiger denn je. Wie sich das Zusammenspiel
von Immobilienwirtschaft und Wirtschaftsf?rderung in der Praxis darstellt, schildern die Autoren beispielhaft anhand ihrer
Erfahrungen aus der kommunalen Wirtschaftsf?rderung. 相似文献
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Knowledge intensive business services (KIBS) are believed to be one of the main drivers of technological change, innovation, and economic progress. Although firm foundations play a crucial role among KIBS, entrepreneurship research has hardly ever investigated the sector. As firm founders in early stages of their firms' development mostly draw on regional resources, and as the provision of the services is an interactive process, “proximity” between the different actors of the particular territorial innovation and production system clearly matters. This contribution analyses the interrelationships between KIBS foundations and their respective innovation and production systems by performing qualitative and conceptual in-depth studies of three German metropolitan regions. 相似文献
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This article considers suburban development in Australia through the lens of its second largest city, Melbourne. Contemporary urban policies have focussed on the low densities within Australia's capitals and tried to achieve sustainability through urban consolidation policies. The article argues that these policies are often based on a distorted understanding of the relationship between housing markets and labour markets in Australia's large metropolises. The analysis of suburban development in Melbourne shows that suburban development involves complex links between changes in housing and job location and that urban sustainability policy needs to include actions designed to change the distribution of employment as well as the location and density of housing. The article shows that the vast spread of the Melbourne population masks closely linked regional labour and housing markets. 相似文献