9,631 research outputs found
Multifactor Inequality: Substitution Effects for Income Sources in Mexico
Income is a poor indicator of welfare and should be use only as a as component of welfare. Wealth provides another dimension of well-being. We use the Kullback-Leibler Information Criterion (KLIC, hereafter) as a measure of the discrepancy between two attributes. This will allow economists and researchers to understand the kind of relationship that the attributes hold. The applications deals with an unusual analysis of income factors in which we treat them as different attributes. This allows us to estimate the substitution effects among income factors.entropy, cross-entropy, KLIC, multi-attribute, multifactor, welfare matrix, Theil index, Gini index
Use of the fungal pathogen Hirsutella cryptosclerotium sp. nov. for the biocontrol of Rastrococcus invadens (Pseudococcidae)
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Short distance singularities and automatic O() improvement: the cases of the chiral condensate and the topological susceptibility
Short-distance singularities in lattice correlators can modify their Symanzik
expansion by leading to additional O() lattice artifacts. At the example of
the chiral condensate and the topological susceptibility, we show how to
account for these lattice artifacts for Wilson twisted mass fermions and show
that the property of automatic O() improvement is preserved at maximal
twist.Comment: 12 pages, corrected proof for topological susceptibility, version
published in JHE
Optimal education and pensions in an endogenous growth model
It is well known that, in OLG economies with life-cycle saving and exogenous growth, competitive equilibria will in general fail to achieve optimality and may even be dynamically inefficient. This is a consequence of individuals accumulating amounts of physical capital that differ from the level which would maximize welfare along a balanced growth path (the Golden Rule). With human capital, a second potential source of departure from optimality arises, to wit: individuals may not choose the correct amount of education investment. However, the Golden Rule concept, widely used in exogenous growth frameworks, has not found its way into endogenous growth models. In this paper, we propose to recover the Golden Rule of physical and also human capital accumulation. The optimal policy to decentralize the Golden Rule balanced growth path when there are no constraints for individuals to finance their education investments is also characterized. It is shown that it involves positive pensions and negative education subsidies (i.e., taxes)endogenous growth, human capital, intergenerational transfers, education policy
Topological susceptibility from twisted mass fermions using spectral projectors
We discuss the computation of the topological susceptibility using the method
of spectral projectors and dynamical twisted mass fermions. We present our
analysis concerning the O(a)-improvement of the topological susceptibility and
we show numerical results for Nf=2 and Nf=2+1+1 flavours, performing a study of
the quark mass dependence in terms of leading order chiral perturbation theory.Comment: 7 pages, 3 figures; presented at the 31st International Symposium on
Lattice Field Theory (Lattice 2013), 29 July - 3 August 2013, Mainz, German
On welfare criteria and optimality in an endogenous growth model
In this paper we explore the consequences for optimality of a social planner adopting two different welfare criteria. The framework of analysis is an OLG model with physical and human capital. We first show that, when the SWF is a discounted sum of individual utilities defined over consumption per unit of natural labour, the precise cardinalization of the individual utility function becomes crucial for the characterization of the social optimum. Also, decentralizing the social optimum requires an education subsidy. In contrast, when the SWF is a discounted sum of individual utilities defined over consumption per unit of efficient labour, the precise cardinalization of preferences becomes irrelevant. More strikingly, along the optimal growth path, education should be taxed.endogenous growth, human capital, intergenerational transfers, education policy
Computation of the chiral condensate using and dynamical flavors of twisted mass fermions
We apply the spectral projector method, recently introduced by Giusti and
L\"uscher, to compute the chiral condensate using and
dynamical flavors of maximally twisted mass fermions. We present our results
for several quark masses at three different lattice spacings which allows us to
perform the chiral and continuum extrapolations. In addition we report our
analysis on the improvement of the chiral condensate for twisted mass
fermions. We also study the effect of the dynamical strange and charm quarks by
comparing our results for and dynamical flavors.Comment: 7 pages, 3 figures; presented at the 31st International Symposium on
Lattice Field Theory (Lattice 2013), 29 July - 3 August 2013, Mainz, German
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