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21.
Building from Scratch: New Cities,Privatized Urbanism and the Spatial Restructuring of Johannesburg after Apartheid
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Claire W. Herbert Martin J. Murray 《International journal of urban and regional research》2015,39(3):471-494
By the start of the twenty‐first century, the once dominant historical downtown core of Johannesburg had lost its privileged status as the center of business and commercial activities, the metropolitan landscape having been restructured into an assemblage of sprawling, rival edge cities. Real estate developers have recently unveiled ambitious plans to build two completely new cities from scratch: Waterfall City and Lanseria Airport City (formerly called Cradle City) are master‐planned, holistically designed ‘satellite cities’ built on vacant land. While incorporating features found in earlier city‐building efforts, these two new self‐contained, privately‐managed cities operate outside the administrative reach of public authority and thus exemplify the global trend toward privatized urbanism. Waterfall City, located on land that has been owned by the same extended family for nearly 100 years, is spearheaded by a single corporate entity. Lanseria Airport City/Cradle City is a planned ‘aerotropolis’ surrounding the existing Lanseria airport at the northwest corner of the Johannesburg metropole. These two new private cities differ from earlier large‐scale urban projects because everything from basic infrastructure (including utilities, sewerage, and the installation and maintenance of roadways), landscaping, security services, the regulation of common spaces, and selling and branding the city are firmly in the hands of private profit‐making corporate entities and outside the mandate of public authorities. 相似文献
22.
Harold A. LinstoneAuthor Vitae Murray TuroffAuthor Vitae 《Technological Forecasting and Social Change》2011,78(9):1712-1719
In response to a request by the guest editors, we have set down our thoughts regarding the evolution of Delphi, beginning with our immersion in the subject in the late 1960s and concluding with some rumination about its future. Our focus is on the changing roles of Delphi. Most importantly, with the profound impact of the internet on organizational and community planning systems, it will foster a new age of participation through communication, coordination, and collaboration. 相似文献
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Winston W. Chang Wilfred J. Ethier Murray C. Kemp 《Journal of International Economics》1980,10(3):377-394
This paper analyzes the implications of joint production for the four basic results of the factor-endowments theory of international trade. The nature of the relationship between commodity prices and factor rewards is first elucidated in detail. It is then shown that, in sharp contrast to prevalent opinion, there is in fact a strong presumption that the basic theorems will continue to hold in essence. The paper then considers applications and extensions of the analysis to higher dimensions. 相似文献
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It is shown that the rental of the ith primary factor in terms of the jth product is a convex function of the relative price of the jth commodity if and only if the weighted elasticity of factor substitution is greater in whichever industry employs the ith factor relatively intensively the weights being the shares of the ith factor in the total costs of the two industries. 相似文献
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John E. Murray 《The Journal of risk and insurance》2011,78(1):117-138
American workers and employers a century ago formed microinsurance funds to provide sick pay to temporarily disabled workers. This article analyzes a 1908 survey of several hundred such microinsurers. Theoretically, a single cross‐section may yield evidence of asymmetric information, but cannot enable the separation of moral hazard and adverse selection effects. However, microinsurance fund managers and outside observers believed they did see separate such effects and so microinsurers created separate countermeasures to mitigate these problems. This article finds prima facie evidence of asymmetric information and suggestive evidence of the separability of informational asymmetries and the effectiveness of such countermeasures. 相似文献
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Richard Murray 《Review of Income and Wealth》2010,56(2):413-423
In 1993 a new page was turned in national accounting. The United Nations Standards of National Accounting recommended a new standard for the measurement of output from the public sector. Implementation has recently begun in many countries, in Europe based on a European Union directive. In the U.K. the Atkinson Review in 2005 came up with a series of recommendations. This article examines its recommendations concerning the definition and valuation of government outputs. For the non‐market sector a market analog is recommended by the Review. However, several of its recommendations are inconsistent with that, championing social value as a basis for definitions and measurement. If taken seriously it will lead to arbitrary and politically controversial factors inserted into national accounts. The article highlights the norm that GDP is a measure of production, and advocates adhering to the market analog and following well recognized practices of national accounting. 相似文献
29.
Starr Roxanne Hiltz Murray Turoff 《Journal of Organizational Computing & Electronic Commerce》2013,23(4):357-376
Group Support Systems may be “distributed”; for nonsimultaneous use by being embedded in a Computer‐Mediated Communication System (CMCS). In this manner, large groups may use them for complex tasks over an extended period of time. Will executives use such systems, and what are their reactions? This case study of elites engaged in formulating recommendations for the White House Conference on Productivity demonstrates that executives can use such systems, given that “critical success factors”; are met. Perceived information richness is strongly correlated with perceptions of productivity enhancement as a result of system use. 相似文献
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