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11.
Informal Food Production in the Enlarged European Union 总被引:1,自引:0,他引:1
How widespread is the production of food in old and new member states of the European Union and what is the social meaning or logic of such activities? We show that growing food is (a) more widespread in former communist countries than in traditional market economies and (b) is predominantly a hobby or recreational activity in affluent countries, but a coping strategy in reaction to experienced difficulties in making ends meet in poorer nations, and especially so in the former communist countries. 相似文献
12.
本文对战后德国男性人口短缺的规模、结构及其影响因素进行了认真的分析.研究表明战后德国男性人口短缺非常严重,但随着时间的推移,男性短缺矛盾逐年趋于缓和.究其原因,性别结构因素在其中扮演了绝对重要的角色,但其影响逐年减弱,年龄结构因素的影响有限,而人口规律因素的影响则有所增强. 相似文献
13.
David Brady Marco Giesselmann Ulrich Kohler Anke Radenacker 《Journal of Economic Inequality》2018,16(3):321-345
Permanent income (PI) is an enduring concept in the social sciences and is highly relevant to the study of inequality. Nevertheless, there has been insufficient progress in measuring PI. We calculate a novel measure of PI with the German Socio-Economic Panel (SOEP) and U.S. Panel Study of Income Dynamics (PSID). Advancing beyond prior approaches, we define PI as the logged average of 20+ years of post-tax and post-transfer (“post-fisc”) real equivalized household income. We then assess how well various household- and individual-based measures of economic resources proxy PI. In both datasets, post-fisc household income is the best proxy. One random year of post-fisc household income explains about half of the variation in PI, and 2–5 years explain the vast majority of the variation. One year of post-fisc HH income even predicts PI better than 20+ years of individual labor market earnings or long-term net worth. By contrast, earnings, wealth, occupation, and class are weaker and less cross-nationally reliable proxies for PI. We also present strategies for proxying PI when HH post-fisc income data are unavailable, and show how post-fisc HH income proxies PI over the life cycle. In sum, we develop a novel approach to PI, systematically assess proxies for PI, and inform the measurement of economic resources more generally. 相似文献
14.
Tabea Herrmann Olaf Hübler Lukas Menkhoff Ulrich Schmidt 《Journal of Risk and Uncertainty》2017,54(2):129-156
This paper complements evidence on the Allais paradox from advanced countries and educated people by a novel investigation in a poor rural area. The share of Allais-type behavior is indeed high and related to indicators of “lacking ability,” such as poor education, unemployment, and little financial sophistication. Based on prospective reference theory, we extend these characteristics by biased processing of probabilistic information. Finally, we reveal that Allais-type behavior is linked to risk-related characteristics, such as risk tolerance and optimism. This indicates a potential problem as exactly the more dynamic among the poor tend to make inconsistent decisions under uncertainty. 相似文献
15.
Can sustainability economics profit from the fusion with Amartya Sen's capability approach, thereby gaining solid normative foundations and wider applicability? We argue that this fusion is mistaken to the extent that the capability approach is essentially a static normative framework while sustainability economics demands a systematic long-term view with focus on wide-ranging societal change. These demands are best realized by taking an evolutionary perspective that focuses on the evolution and development of societies. 相似文献
16.
Ulrike Sonja Trampisch Petra Platen Matthias Trampisch Anna Moschny Ulrich Thiem Timo Hinrichs 《European review of aging and physical activity》2012,9(2):143-148
There is general consensus that physical activity is important for preserving functional capacities of older adults and positively influencing quality of life. While accelerometry is widely accepted and applied to assess physical activity in studies, several problems with this method remain (e.g., low retest reliability, measurement errors). The aim of this study was to test the intra-instrumental retest reliability of a wrist-worn accelerometer in a 3-day measurement of physical activity in older adults and to compare different estimators. A sample of 123 older adults (76.5?±?5.1?years, 59?% female) wore a uniaxial accelerometer continuously for 1?week. The data were split into two repeated measurement values (week set) of 3?days each. The sum, the 80?C99th quantiles and the 80?C99th trimmed sums were built for each week set. Retest reliability was assessed for each estimator and graphically demonstrated by Bland?CAltman plots. The intraclass correlation of the retest reliability ranged from 0.22 to 0.91. Retest reliability increases when a more robust estimator than the overall sum is used. Therefore, the trimmed sum can be recommended as a conservative estimate of the physical activity level of older adults. 相似文献
17.
This article uses dyadic latent panel analysis (DLPA) to examine environmental influences on well-being. DLPA requires longitudinal
dyadic data. It decomposes the observed variance of both members of a dyad into a trait, state, and an error component. Furthermore,
state variance is decomposed into initial and new state variance. Total observed similarity between members of a dyad is decomposed
into trait similarity, initial state similarity, new state similarity, and error similarity. Dyadic similarity in new state
variance reveals that both members of a dyad change in the same direction, which is a strong indication of environmental effects.
DLPA is used to examine environmental influences on life satisfaction and domain satisfaction based on 22 annual assessments
of married couples in the German Socio-Economic Panel Study (N’s = 607–740). The results show high similarity in new state variance for life satisfaction and objectively identical domains
(household income, housing), and less similarity for objectively less similar domains (recreation, health). This finding provides
strong evidence for environmental influences on well-being. In addition, the results show high trait similarity. The implications
of the latter finding for interpretation of behavioral genetics studies of well-being are discussed. 相似文献
18.
Michael D. Denkinger Simone E. Flick Thorsten Nikolaus Clemens Becker Kamiar Aminian Ulrich Lindemann 《European review of aging and physical activity》2014,11(2):133-139
Increased physical activity is positively associated with better health in community-dwelling older persons. It is unclear whether physical activity also influences success of inpatient rehabilitation. For the assessment of physical activity in inpatient rehabilitation the Physical Activity in Inpatient Rehabilitation Assessment (PAIR), a short questionnaire based on five questions, was developed and preliminary validated. In this study, the PAIR was validated against a sensor-based physical activity measurement. Seventy functionally impaired and cognitively mostly intact patients of a German geriatric inpatient rehabilitation clinic who had undergone hip surgery (n?=?62 women, median age?=?83 years) participated. Physical activity was measured using the PAIR and a sensor-based activity monitor (Physilog ®; BioAGM, CH). Assessments were conducted at admission (T1) and 2 weeks later (T2) during the rehabilitation process. To assess concurrent and predictive validity, Spearman correlations and linear regression models were calculated using sensor-based walking activity and uptime activity (walking and standing time) as dependent variables. Criterion-related concurrent validity using physical activity sensors was weak to moderate. Correlations were slightly higher at T2 (r?=?0.45-0.53) than at T1 (r?=?0.44-0.46). The objectively measured variance of physical activity, explained by the PAIR, ranged from 25 to 43 %. PAIR activity scores and sensor-based walking or total activity increased in a dose-dependent manner, confirming the scoring system of the PAIR. The application time was usually less than 2 min. The validity of the PAIR is weak to moderate when compared to a sensor-based activity monitor and comparable to existing physical activity assessments for community-dwelling older adults. 相似文献
19.
Using the German Socio-Economic Panel, we examined life-satisfaction and housing satisfaction before and after moving (N = 3,658 participants from 2,162 households) with univariate and bivariate two-intercept two-slope latent growth models. The
main findings were (a) a strong and persistent increase in average levels of housing satisfaction, (b) no increase in average
life-satisfaction, (c) low stability in individuals’ level of housing satisfaction, and (d) high stability in individuals’
level of life-satisfaction. The results are discussed in the context of top–down and bottom–up models as well as adaptation
theories of well-being. We conclude that moving or living in a better home is unrelated to life-satisfaction judgments for
two reasons. First, housing makes a small contribution to life-satisfaction judgments. Second, positive effects of better
housing are undermined by the greater costs of living in a better home. The results provide no support for the prediction
of adaptation theory that shifting aspirations undermine the benefits of living in a better home. 相似文献
20.
Ulrich Gehmann 《Culture and Organization》2013,19(2):105-119
This article outlines some basic characteristics of modern myths that fundamentally differ from the traditional myths on which most myth research is based, namely: their relation to time, and their relation to themselves. The article also takes a closer look at the implications these differences have for our present state of Being. The aim is not to offer yet another variation on the academic discussion of myths, but rather to provide a starting point for further discussion about the peculiarities and impacts pertaining to modern myths. 相似文献