Report to Users / Wishes and Grumbles

These minutes summarize StataCorp president Bill Gould's remarks in a Report to Users, and a "Wishes and Grumbles" session in which users made suggestions to Messrs Gould and Gutierrez.

Panphasia: a user guide

We make a very large realisation of a Gaussian white noise field, called PANPHASIA, public by releasing software that computes this field. Panphasia is designed specifically for setting up Gaussian initial conditions for cosmological simulations and resimulations of structure formation. We make available both software to compute the field itself and codes to illustrate applications including a modified version of a public serial initial conditions generator. We document the software and present the results of a few basic tests of the field. The properties and method of construction of Panphasia are described in full in a companion paper Jenkins 2013.Comment: 11 pages, 2 figures. Software to calculate Panphasia is available from: http://icc.dur.ac.uk/Panphasia.ph

New directions in the analysis of inequality and poverty

Over the last four decades, academic and wider public interest in inequality and poverty has grown substantially. In this paper we address the question: what have been the major new directions in the analysis of inequality and poverty over the last thirty to forty years? We draw attention to developments under seven headings: changes in the extent of inequality and poverty, changes in the policy environment, increased scrutiny of the concepts of ‘poverty’ and inequality’ and the rise of multidimensional approaches, the use of longitudinal perspectives, an increase in availability of and access to data, developments in analytical methods of measurement, and developments in modelling

The Distribution of Income by Sectors of the Population

I interpret the 'distribution of income by sectors of the population' to refer to the personal distribution of income, with evidence about it derived from household surveys. Section 1 outlines the links between the personal and factor income distributions, and includes a discussion of research using National Accounts data to check the quality of household survey income data. Section 2 provides a number of breakdowns of the personal income distribution in Britain using a variety of methods and subgroup types (including age, family type, housing tenure, and economic status). Section 3 draws attention to longitudinal issues - how much individuals' incomes and subgroup membership changes between one year and the next, and the links between them. Section 4 provides a summary and concluding remarks.

Inequality and the GB2 income distribution

The generalized entropy class of inequality indices is derived for Generalized Beta of the Second Kind (GB2) income distributions, thereby providing a full range of topsensitive and bottom-sensitive measures. An examination of British income inequality in 1994/95 and 2004/05 illustrates the analysis.inequality, generalized entropy indices, generalized Beta of the second kind distribution, GB2 distribution, Singh-Maddala distribution, Dagum distribution

Review of Maximum Likelihood Estimation with Stata by Gould, Pitblado, and Sribney

The new book by Gould, Pitblado, and Sribney (2003) is reviewed. Copyright 2003 by StataCorp LP.maximum likelihood, Stata programming

An experimental AWTS process and comparisons of ONERA T2 and 0.3-m TCT AWTS data for the ONERA CAST-10 aerofoil

An experimental Adaptive Wall Test Section (AWTS) process is described. Comparisons of the ONERA T2 and the 0.3-m TCT (transonic cryogenic tunnel) AWTS data for the ONERA CAST-10 airfoil are presented. Most of the 0.3-m TCT data is new and preliminary and no sidewall boundary layer control is involved. No conclusions are given

Quenched Chiral Perturbation Theory for Baryons

We develop quenched chiral perturbation theory for baryons using the graded-symmetry formalism of Bernard and Golterman and calculate non-analytic contributions to the baryon masses coming from quenched chiral loops. The usual term proportional to $m_{q}^{3/2}$ is substantially altered due to the cancellation of diagrams with internal quark loops. In addition, the $\eta'$ ``hairpin'' vertex leads to a new correction, proportional to $m_{q}^{1/2}$. We compare our results to numerical lattice data and use them to estimate the size of the quenching error in the octet baryon masses.Comment: 7 pages (An abridged version of this note will appear in the proceedings of Lattice'93. Latex + 14 postscript files, bundled using uufiles. Needs psfig.) UW/PT-93-0

Multivariate probit regression using simulated maximum likelihood

We discuss the application of the GHK simulation method to maximum likelihood estimation of the multivariate probit regression model, and describe and illustrate a Stata program mvprobit for this purpose.