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排序方式: 共有10000条查询结果,搜索用时 187 毫秒
951.
Samuel R. Dastrup Joshua Graff Zivin Dora L. Costa Matthew E. Kahn 《European Economic Review》2012,56(5):961-973
This study uses a large sample of homes in the San Diego area and Sacramento, California area to provide some of the first capitalization estimates of the sales value of homes with solar panels relative to comparable homes without solar panels. Although the residential solar home market continues to grow, there is little direct evidence on the market capitalization effect. Using both hedonics and a repeat sales index approach we find that solar panels are capitalized at roughly a 3.5% premium. This premium is larger in communities with a greater share of college graduates and of registered Prius hybrid vehicles. 相似文献
952.
Gary L. Simon 《The Service Industries Journal》2013,33(1):11-23
Professional services firms (PSFs) engaged in international operations present a unique challenge for governments. They directly and indirectly affect governmental policies and the agencies that enforce these policies through policy development, problem solving, and implementation. Yet, governments that seek to advance rational, forward thinking public policy have little, if any, regulatory control over the input and influence of these professional experts. International professional service firms face an increasingly competitive marketplace and complex challenges that demand skill sets that are markedly different from those characteristically required of consumer service companies. This study identifies the qualities of the best performing PSFs that engage clients worldwide. Implications are discussed for governments to ensure the greater public good. 相似文献
953.
954.
Aaron L. Jackson David L. Ortmeyer Michael A. Quinn 《International Economics and Economic Policy》2013,10(4):491-519
This paper examines the impact of fiscal policies on both the size and educational levels of immigrants in destination countries. We find that whether or not a country’s policies are attracting highly educated immigrants goes beyond the issue of the “welfare state”. Immigrants are making important distinctions between the different benefits provided by a receiving country’s government. Health and education spending are found to have a positive impact on the education levels of immigrants while the reverse is true for unemployment and retirement benefits. Welfare programs are found to be insignificant once other government programs/taxes and other factors are taken into account. These results imply that countries should be less concerned about whether they are a “big government” with regards to attracting immigrants, and more concerned with what types of benefits they offer. 相似文献
955.
Challenges for land system science 总被引:3,自引:0,他引:3
Mark D.A. Rounsevell Bas Pedroli Karl-Heinz Erb Marc Gramberger Anne Gravsholt Busck Helmut Haberl Søren Kristensen Tobias Kuemmerle Sandra Lavorel Marcus Lindner Hermann Lotze-Campen Marc J. Metzger David Murray-Rust Alexander Popp Marta Pérez-Soba Anette Reenberg Angheluta Vadineanu Peter H. Verburg Bernhard Wolfslehner 《Land use policy》2012,29(4):899-910
While considerable progress has been made in understanding land use change, land system science continues to face a number of grand challenges. This paper discusses these challenges with a focus on empirical land system studies, land system modelling and the analysis of future visions of land system change. Contemporary landscapes are contingent outcomes of past and present patterns, processes and decisions. Thus, empirical analysis of past and present land-use change has an important role in providing insights into the socio-economic and ecological processes that shape land use transitions. This is especially important with respect to gradual versus rapid land system dynamics and in understanding changes in land use intensity. Combining the strengths of empirical analysis with multi-scale modelling will lead to new insights into the processes driving land system change. New modelling methods that combine complex systems thinking at a local level with macro-level economic analysis of the land system would reconcile the multi-scale dynamics currently encapsulated in bottom-up and top-down modelling approaches. Developments in land use futures analysis could focus on integrating explorative scenarios that reflect possible outcomes with normative visions that identify desired outcomes. Such an approach would benefit from the broad and in-depth involvement of stakeholders in order to link scientific findings to political and societal decision-making culminating in a set of key choices and consequences. Land system models have an important role in supporting future land use policy, but model outputs require scientific interpretation rather than being presented as predictions. The future of land system science is strongly dependent on the research community's capacity to bring together the elements of research discussed in the paper, via empirical data collection and analysis of observed processes, computer simulation across scale levels and futures analysis of alternative, normative visions through stakeholder engagement. 相似文献
956.
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958.
This paper provides an approach to the measurement of the “scale effects” in the allocative profit efficiency. To be specific, we evaluate the improvements of profit that can be accomplished by means of a change in the scale size, once technical efficiency is achieved. New decompositions of the allocative efficiency into a scale effect component and the corresponding residual mix effect component are derived. 相似文献
959.
Alison L. Booth Andrew Leigh Elena Varganova 《Oxford bulletin of economics and statistics》2012,74(4):547-573
We conduct a large‐scale field experiment to measure labour market discrimination in Australia, one quarter of whose population was born overseas. To denote ethnicity, we use distinctively Anglo‐Saxon, Indigenous, Italian, Chinese and Middle Eastern names. We compare multiple ethnic groups, rather than a single minority as in most other studies. In all cases we applied for entry‐level jobs and submitted a CV indicating that the candidate attended high school in Australia. We find significant differences in callback rates: ethnic minority candidates would need to apply for more jobs in order to receive the same number of interviews. These differences vary systematically across ethnic groups. 相似文献
960.
The development in the working of markets has been an important topic in economic history for decades. The volatility of market
prices is often used as an indicator of market efficiency in the broadest sense. Yet, the way in which volatility is estimated
often makes it difficult to compare price volatility across regions or over time for two reasons. First, if prices are non-stationary,
the variance is inflated. Second, the variance of commodity prices contains information on a number of region- and time-specific
factors that are not related to market efficiency. Hence, the popular coefficient of variation and related indicators are
not adequate measures of the efficiency of markets and are incomparable across regions. As a solution, we suggest using a
conditional heteroscedasticity model to estimate the residual (conditional) variance of commodity prices. This measure reflects
how markets react to unexpected events and can therefore be seen as a measure of market efficiency. Using this approach on
grain prices from the Early Modern Pisa, Paris, Vienna, and Japan, we find that the residual price volatility had declined
(and market efficiency increased) in the European markets in the late sixteenth century while it remained stable in Japan. 相似文献