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11.
Daniela Acquadro Maran Giorgio Soro 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》2010,21(4):481-496
The aim of this study is to analyze the rules whereby women are selected for leadership and management roles and to describe
the cultural values that can foster their inclusion and participation in Italian Voluntary Organizations. Two hypotheses:
the organizational culture that governs these organizations is necessarily oriented toward acceptance, involvement and participation,
and the rules and setting must be flexible and inclusive of all members in order to enable each organization to survive. Methodology
was based on 91 semi-structured interviews. Findings indicate that Italian Voluntary Organizations must necessarily embrace
an organizational culture whose rules and norms are oriented toward attracting men and women to join and encouraging them
to participate. Implications for for-profit organizations are also discussed. 相似文献
12.
The Generalized regression estimator (GREG) of a finite population mean or total has been shown to be asymptotically optimal when the working linear regression model upon which it is based includes variables related to the sampling design. In this paper a regression estimator assisted by a linear mixed superpopulation model is proposed. It accounts for the extra information coming from the design in the random component of the model and saves degrees of freedom in finite sample estimation. This procedure combines the larger asymptotic efficiency of the optimal estimator and the greater finite sample stability of the GREG. Design based properties of the proposed estimator are discussed and a small simulation study is conducted to explore its finite sample performance. 相似文献
13.
Alberto?BertoniEmail author Giorgio?Bertinetti Chiara?Cesari 《Transition Studies Review》2005,12(1):36-43
Dynamics of equity risk premium is not directly measurable on the market. Numerous studies and empirical research analyse its volatility also considering the time span, concluding that the dynamics of equity risk premium over time is inversely proportional to the economic cycle. This study analyses the passive role that, implicitly, would place institutional investors in such a context. In reality, savings management is delegated to a small number of professional operators (institutional investors), as opposed to pure theoretical models in which every person can act directly on the market thus ensuring unlimited price elasticity. Institutional investors should be rational and completely informed so that they can assume an anticyclical position on the market. Thus, supply and demand should quickly smooth over emerging price pressures and avoid price bubbles. We analyse one possible explanation for this situation not to occur, namely, that professionals suffer from operational limits that prevent them from doing their job in the best possible way. Using empirical evidence from the Italian Stock Exchange (Comit Index), we conclude that three factors reduce the freedom of institutional investors to manage their portfolios – the market target size, the fund structure, and the benchmarking – and discuss some implications for each of them. 相似文献
14.
Many developing countries restrict imports of second-hand goods. These policies appear contrary to the optimal choice of technique in developing countries, where low wages, small markets, and scarce technical skills would appear to call for use of more labor intensive smaller scale, and lower-tech machines. This paper examines data on US exports of new and used metalworking machine tools by type and by country of destination to investigate the determinants of used versus new machinery trade. The results indicate that technological factors, skill constraints, and market size may be more important than factor prices in determining the choice of machine. Trade restrictions on used machinery distort firms' investment decisions. 相似文献
15.
R. France K. Westcott P. del Giorgio G. Klein J. Kalff 《Researches on Population Ecology》1996,38(2):283-287
Although theoretical foodweb models predict the presence of only three to four trophic categories, estimation of “potential”
vertical foodweb structure from species lists and inferred feeding interactions suggest that as many as 7 trophic categories
can occur in the pelagic foodwebs of North American glaciated lakes. A compilation of data on the nitrogen isotopic composition
of zooplankton from 46 Canadian Shield lakes suggested the average existence of one “realized” trophic category in addition
to that of filter-feeding, herbivorous cladocerans. When phytoplankton, planktivorous invertebrates, and plantivorous and
piscivorous fish are included, the vertical foodweb structure in the pelagic zones of these lakes are greater than those hypothesized
from some theoretical models. 相似文献
16.
Theory and Decision - Friendship is commonly assumed to reduce strategic uncertainty and enhance tacit coordination. However, this assumption has never been tested across two opposite poles of... 相似文献
17.
Social Indicators Research - In recent years, a significant number of papers has been published providing alternative measures of progress and well-being to Gross Domestic Product. Most of these... 相似文献
18.
Social Indicators Research - This work proposes a multidimensional framework that is based on a latent class model to identify various types of corruption and to outline their importance. A dataset... 相似文献
19.
Parfit’s Repugnant Conclusion stipulates that under total utilitarianism, it might be optimal to choose increasing population size while consumption per capita goes to zero. We evaluate this claim within a canonical AK model with endogenous population size and a reduced form relationship between demographic and economic growth. First we characterize the optimal solution paths for any capital dilution function. Second, we prove that while the Repugnant Conclusion can never occur for realistic values of intertemporal substitution in the traditional linear dilution model, it does occur when population growth is linked to economic growth via an inverted U-shaped relationship. 相似文献
20.
Giorgio Pederzoli 《统计学通讯:理论与方法》2013,42(11):3299-3306
Consider r independent and identically distributed random points in a unit n-ball of which p are in the interior and rp are on the surface. These r points, via their convex hull, generate an r-simplex. This article deals with the exact density of the r-content when the points are uniformly distributed. The exact density of the r-content is obtained for the general values of the parameters r, n and p. A representation of the density is given as a mixture of beta type-1 densities so that one can evaluate various types of probabilities by using incom-plete beta tables. 相似文献