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AbstractCharacterizing relations via Rényi entropy of m-generalized order statistics are considered along with examples and related stochastic orderings. Previous results for common order statistics are included. 相似文献
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Stefan Liebig Steffen Mau 《KZfSS K?lner Zeitschrift für Soziologie und Sozialpsychologie》2002,54(1):109-134
Within the debate about the future of the welfare state a guaranteed social minimum income is often discussed as an alternative to the current social security system. One objection to such a proposal argues that a social minimum income lacks social acceptance and normative recognition. Starting from the thesis that the standard instruments of survey research have little to offer for giving a detailed account of the attitudes towards a social minimum, we deploy the more complex method of Factorial Survey Design. The study sample consists of 121 employed persons. Within the study, the focus is on the criteria used and the differentiations made when people are asked to evaluate a just minimum income. It can be shown that a uniform and flat-rate social minimum possesses less legitimacy than a transfer system that differentiates entitlements according to the beneficiaries relation to the employment sphere and certain need criteria. In addition, we find support for the idea of low income subsidies as suggested by the negative income concept. Though the results give evidence of the normative attraction of a social minimum, it is also apparent that the social judgments of the respondents are influenced by in the normative principles of the existing social security arrangements. 相似文献
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Barro-type endogenous growth models propose a nonmonotonic relationship between productive public spending and growth. Under this so-called nonlinearity hypothesis the size and direction of growth effects due to an increase in public spending depend on the share of public spending in GDP. Employing German time-series data we examine the validity of the nonlinearity hypothesis. We estimate growth effects by using models whose coefficients are allowed to vary with the share of public spending in GDP. Our results support the hypothesis for public consumption but not for public investment data. (JEL H54 , E62 , C22 ) 相似文献
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20世纪初所发生的“视觉现代化”(modernising vision)转向源于自19世纪以来传统的视觉概念所发生的深刻变化。它旨在将人们从过时的观看习惯中解放出来,视觉的本质不应主要被理解为给定可见世界的机械再现模式,而应该从根本上被理解为由文化构造的、具有历史多样性的感知数据的生产性过程。现代艺术试图通过艺术品本身来创造一种现代化的视觉形式,艺术作品被定义为实现视觉现代化的手段或工具,画家试图用艺术来表达一种新的视觉观——观看中充斥着时间的流动,而绝不仅是一个明确的视觉顺序的实现;观看不是一个视觉固定化过程,而是更加有意识地、集中地观察世界。从丢勒式的空间中心透视观到塞尚式的时间和空间相结合的多重透视观,后者更加强调了观者的参与和观看的过程,这种观看方式的变化也是人与世界关系的变化。视觉现代化的探讨在今天仍然具有重要的意义(2)。 相似文献
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Dipl.-Kffr. Jieyan Fang Prof. Dr. Stefan Ruenzi 《Zeitschrift für Betriebswirtschaft》2010,80(9):883-920
This paper is the first to examine rapid trading among German equity mutual fund investors. Using data on inflows and outflows provided by a large German mutual fund company for all of its equity funds, we find strong evidence for rapid trading. It is particularly pronounced for small funds, risky funds, funds with low nominal prices, and international funds. However, we find no evidence of market timing activities. Furthermore, unlike in the US, rapid trading is less pronounced for funds with high loads. This shows that rapid trading among German fund investors is not explained by churning due to brokers’ advice. Rather, our results are consistent with the view that some investors use mutual funds for short-term, speculative purposes. The funds among which we observe the strongest rapid trading show lottery-like characteristics. Regarding fund performance, we find (at most) only very weak evidence for a negative impact of rapid trading on fund performance before the fund scandal of 2003, and no evidence afterwards. 相似文献
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Carsten Sauer Peter Valet Stefan Liebig 《KZfSS K?lner Zeitschrift für Soziologie und Sozialpsychologie》2016,68(4):619-645
This article examines the reasons for inequalities of earnings in Germany and the extent to which these inequalities are considered to be legitimate. We focus on three major inequality-generating factors derived from labour market and inequality research: individual, firm-specific and structural factors. We then investigate empirically the importance of these factors in the emergence of differences of earnings and the extent to which employees consider the rents of each factor to be just or unjust. Analyses based on data from the German Socio-Economic Panel reveal that wage differentials are considered as just if they can be attributed to individual factors (level of education, professional experience). In contrast, wage differentials due to firm-specific factors (atypical employment, seniority-based pay) and structural factors (certain occupational groups/industries, differences between regions) are the major reasons for perceived earnings injustice. The results of this study will contribute to the debate concerning increasing wage inequalities and reveal that distinguishing between just and unjust inequalities is essential, especially in discussions regarding the social or political consequences of this trend. 相似文献
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Michael Kirchler David Andersson Caroline Bonn Magnus Johannesson Erik Ø. Sørensen Matthias Stefan Gustav Tinghög Daniel Västfjäll 《Journal of Risk and Uncertainty》2017,54(1):37-59
We experimentally compare fast and slow decisions in a series of experiments on financial risk taking in three countries involving over 1700 subjects. To manipulate fast and slow decisions, subjects were randomly allocated to responding within 7 seconds (time pressure) or waiting for at least 7 or 20 seconds (time delay) before responding. To control for different effects of time pressure and time delay on measurement noise, we estimate separate parameters for noise and risk preferences within a random utility framework. We find that time pressure increases risk aversion for gains and risk taking for losses compared to time delay, implying that time pressure increases the reflection effect of Prospect Theory. The results for gains are weaker and less robust than the results for losses. We find no significant difference between time pressure and time delay for loss aversion (tested in only one of the experiments). Time delay also leads to less measurement noise than time pressure and unconstrained decisions, and appears to be an effective way of decreasing noise in experiments. 相似文献