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The perils of returning to school : new insights into the seasonality of youth suicides
Chandler, Vincent; Heger, Dörte; Wuckel, Christiane - 2019
that school holidays cause an 19 percent (0.03 percentage points) decrease in the probability of youth suicide. This effect … find evidence of a spike in suicide propensity in the first two days following the end of school holidays. The results are … that school holidays have a beneficial impact on the well-being of students and that suicide prevention efforts are …
Persistent link: https://www.econbiz.de/10012103351
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Quasiconcave preferences and choices on a probability simplex : a nonparametric analysis
Heufer, Jan - 2010
A nonparametric approach is presented to test whether decisions on a probability simplex could be induced by quasiconcave preferences. Necessary and sufficient conditions are presented. If the answer is affirmative, the methods developed here allow to reconstruct bounds on indifference curves....
Persistent link: https://www.econbiz.de/10003950963
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Generating random optimising choices
Heufer, Jan - 2012
This paper provides an efficient way to generate a set of random choices on a set of budgets which satisfy the Generalised Axiom of Revealed Preferences (GARP), that is, they are consistent with utility maximisation. The choices are drawn from an approximate uniform distribution on the...
Persistent link: https://www.econbiz.de/10009580101
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Stochastic dominance and nonparametric comparative revealed risk aversion
Heufer, Jan - 2011
It is shown how to test revealed preference data on choices under uncertainty for consistency with first and second order stochastic dominance (FSD or SSD). The axiom derived for SSD is a necessary and sufficient condition for risk aversion. If an investor is risk averse, stochastic dominance...
Persistent link: https://www.econbiz.de/10009580236
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Does height affect labor supply? : implications of product variety and caloric needs
Micheli, Martin - 2015
The positive correlation between hourly wages and height, which results in higher labor supply of tall individuals, is well-documented in the literature. Accepting the utilitarian perspective and assuming that height does not affect utility implies that linking income taxes to height is welfare...
Persistent link: https://www.econbiz.de/10011299083
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Fixed amount saving and the permanent income hypothesis
Vosen, Simeon - 2012
According to the German SAVE survey, more than 40 percent of households regularly save fixed amounts rather than flexibly adjusting savings to income variations as assumed by the Permanent Income Hypothesis (PIH). Fixed amount saving behaviour could thus imply a challenge to PIH-based standard...
Persistent link: https://www.econbiz.de/10009668279
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Homothetic efficiency : a non-parametric approach
Heufer, Jan; Hjertstrand, Per - 2014
This article provides a robust non-parametric approach to demand analysis based on a concept called homothetic efficiency. Homotheticity is a useful restriction or assumption but data rarely satisfy testable conditions. To overcome this problem, this article provides a way to estimate homothetic...
Persistent link: https://www.econbiz.de/10010399444
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Revealed notions of distributive justice II : experimental evidence
Becker, Nicole; Häger, Kirsten; Heufer, Jan - 2013
We report the results of a combination of a dictator experiment with either a “social planner” or a “veil of ignorance” experiment. The experimental design and the analysis of the data are based on the theoretical framework proposed in the companion paper by Becker, Häger, and Heufer...
Persistent link: https://www.econbiz.de/10010192931
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Revealed notions of distributive justice I : theory
Becker, Nicole; Häger, Kirsten; Heufer, Jan - 2013
We provide a framework to decompose preferences into a notion of distributive justice and a selfishness part and to recover individual notions of distributive justice from data collected in appropriately designed experiments. “Dictator games” with varying transfer rates used in Andreoni and...
Persistent link: https://www.econbiz.de/10010192945
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Consistent subsets : computationally feasible methods to compute the Houtman-Maks-index
Heufer, Jan; Hjertstrand, Per - 2014
We provide two methods to compute the largest subset of a set of observations that is consistent with the Generalised Axiom of Revealed Preference. The algorithm provided by Houtman and Maks (1985) is not comput ationally feasible for larger data sets, while our methods are not limited in that...
Persistent link: https://www.econbiz.de/10010442321