Decomposition of s-Concentration Curves

For any given order of stochastic dominance, standard concentration curves are decomposed into contribution curves corresponding to within-group inequalities, between-group inequalities, and transvariational inequalities. We prove, for all orders, that contribution curve dominance implies systematically welfare-improving tax reforms and conversely. Accordingly, we point out some undesirable fiscal reforms since a welfare expansion may be costly in terms of particular inequalities.Concentration curves ; Contribution curves ; Stochastic dominance ; Tax reforms

Economic Contribution of the Agricultural Sector to the Arkansas Economy in 2012

This report is the ninth in a series of reports examining agriculture’s economic contribution on the Arkansas economy. Utilizing data from the United States Bureau of Economic Analysis (BEA), USDA Economic Research Service (ERS), USDA National Agricultural Statistics Service (NASS), and IMPLAN Group, LLC , the economic contribution of agriculture on the Arkansas economy was estimated for the most recent year available, 2012

Decomposition of s - Concentration Curves

For any given order of stochastic dominance, standard concentration curves are decomposed into contribution curves corresponding to within-group inequalities, between-group inequalities, and transvariational inequalities. We prove, for all orders, that contribution curve dominance implies systematically welfare-improving tax reforms and conversely. Accordingly, we point out some undesirable fiscal reforms since a welfare expansion may be costly in terms of particular inequalities.Concentration curves, Contribution curves, Stochastic dominance, Tax reforms

Graphs, free groups and the Hanna Neumann conjecture

A new bound for the rank of the intersection of finitely generated subgroups of a free group is given, formulated in topological terms, and very much in the spirit of Stallings. The bound is a contribution to (although unfortunately not a solution of) the strengthened Hanna Neumann conjecture.Comment: J. Group Theory (to appear

Repository Steering Groups

A well-chosen, well-informed and committed Steering Group can make an important contribution to the sustained success of a repository. This Briefing Paper highlights some of the issues for consideration when planning the role, remit and composition of a repository Steering Group

The formation of objects in the group matrix: Reflections on creative therapy with clay

In this article describes an experimental group experience where five people worked in silence for 20 minutes around a 2 ft square slate using clay as a medium for communication as part of a creative therapy session on an inpatient psychiatric ward. The interaction culminated in a group sculpt. It is suggested that the process of the sculpting may throw some light on the formation of objects in the unconscious group matrix. The article is intended as a contribution towards the debate about the potential symbiosis between group analysis and the creative therapies (Waller) as well as the basis for further investigation into Rey's question about the formation of group matrix

Pairing in finite nuclei from low-momentum two- and three-nucleon interactions

The present contribution reviews recent advances made toward a microscopic understanding of superfluidity in nuclei using many-body methods based on the BCS ansatz and low-momentum inter-nucleon interactions, themselves based on chiral effective field theory and renormalization group techniques.Comment: 15 pages, contribution to "50 years of nuclear BCS", edited by R.A. Broglia and V. Zelevinsk