303,105 research outputs found
Distributional National Accounts (DINA) with Household Survey Data: Methodology and Results for European Countries
The paper builds Distributional National Accounts (DINA) using household survey data. We present a transparent and reproducible methodology to construct DINA whenever administrative tax data are not available for research and apply it to various European countries. By doing so, we build synthetic microdata files which cover the entire distribution, include all income components individually aligned to national accounts, and preserve the detailed socioeconomic information available in the surveys. The methodology uses harmonized and publicly available data sources (SILC, HFCS) and provides highly comparable results. We discuss the methodological steps and their impact on the income distribution. In particular, we highlight the effects of imputations and the adjustment of the variables to national accounts totals. Furthermore, we compare different income concepts of both the DINA and EG-DNA approach of the OECD in a consistent way. Our results confirm that constructing DINA is crucial to get a better picture of the income distribution. Our methodology is well suited to build synthetic microdata files which can be used for policy evaluation like social impact analysis and microsimulation.Series: INEQ Working Paper Serie
Towards metric-like higher-spin gauge theories in three dimensions
We consider the coupling of a symmetric spin-3 gauge field to
three-dimensional gravity in a second order metric-like formulation. The action
that corresponds to an SL(3,R) x SL(3,R) Chern-Simons theory in the frame-like
formulation is identified to quadratic order in the spin-3 field. We apply our
result to compute corrections to the area law for higher-spin black holes using
Wald's entropy formula.Comment: 29 pages; v2: typos correcte
Finite-Size Corrections for Ground States of Edwards-Anderson Spin Glasses
Extensive computations of ground state energies of the Edwards-Anderson spin
glass on bond-diluted, hypercubic lattices are conducted in dimensions
d=3,..,7. Results are presented for bond-densities exactly at the percolation
threshold, p=p_c, and deep within the glassy regime, p>p_c, where finding
ground-states becomes a hard combinatorial problem. Finite-size corrections of
the form 1/N^w are shown to be consistent throughout with the prediction
w=1-y/d, where y refers to the "stiffness" exponent that controls the formation
of domain wall excitations at low temperatures. At p=p_c, an extrapolation for
appears to match our mean-field results for these corrections. In
the glassy phase, w does not approach the value of 2/3 for large d predicted
from simulations of the Sherrington-Kirkpatrick spin glass. However, the value
of w reached at the upper critical dimension does match certain mean-field spin
glass models on sparse random networks of regular degree called Bethe lattices.Comment: 6 pages, RevTex4, all ps figures included, corrected and final
version with extended analysis and more data, such as for case d=3. Find
additional information at http://www.physics.emory.edu/faculty/boettcher
The H-Covariant Strong Picard Groupoid
The notion of H-covariant strong Morita equivalence is introduced for
*-algebras over C = R(i) with an ordered ring R which are equipped with a
*-action of a Hopf *-algebra H. This defines a corresponding H-covariant strong
Picard groupoid which encodes the entire Morita theory. Dropping the positivity
conditions one obtains H-covariant *-Morita equivalence with its H-covariant
*-Picard groupoid. We discuss various groupoid morphisms between the
corresponding notions of the Picard groupoids. Moreover, we realize several
Morita invariants in this context as arising from actions of the H-covariant
strong Picard groupoid. Crossed products and their Morita theory are
investigated using a groupoid morphism from the H-covariant strong Picard
groupoid into the strong Picard groupoid of the crossed products.Comment: LaTeX 2e, 50 pages. Revised version with additional examples and
references. To appear in JPA
The midpoint between dipole and parton showers
We present a new parton-shower algorithm. Borrowing from the basic ideas of
dipole cascades, the evolution variable is judiciously chosen as the transverse
momentum in the soft limit. This leads to a very simple analytic structure of
the evolution. A weighting algorithm is implemented, that allows to
consistently treat potentially negative values of the splitting functions and
the parton distributions. We provide two independent, publicly available
implementations for the two event generators Pythia and Sherpa.Comment: 23 pages, 9 figure
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