Tanzania HIV/AIDS and Malaria Indicator Survey 2011-12(Preliminary Results)

Preliminary results (tables only) for the malaria indicators and selected HIV indicators. The results were released by the National Bureau of Statistics on 11 October 2012. Full results of the survey are still being compiled and will be included in the final report

The n-Dimensional Bailey-Divisia Measure as a General-Equilibrium Measure of the Welfare Costs of Inflation

This paper shows that in economies with several monies the Bailey-Divisia multidimensional consumers surplus formula may emerge as an exact general-equilibrium measure of the welfare costs of in ation, provided that preferences are quasilinear.

Measurement

This two-part activity provides an introduction to the basics of measurement (linear, mass, volume, density) and discusses the role of inferential statistics in comparing any two measurements. The concept of random variations in measurements is introduced, which leads to a discussion of binomial distributions and probability in comparing measurements and results. Students will use online databases to form null hypotheses and test them using an online t-test calculator. Links to datasets, an online statistical application, and to related sites are also provided. Educational levels: Undergraduate lower division, High school

How (not) to measure competition

We discuss and apply a new measure of competition: the elasticity of a firm's profits with respect to its cost level. A higher value of this profit elasticity (PE) signals more intense competition. Using firm level data we compare PE with the most popular competition measures such as the price cost margin (PCM). We show that PE and PCM are highly correlated on average. However, PCM tends to misrepresent the development of competition over time in markets with few firms and high concentration, i.e. in markets with high relevance for competition policy and regulation. So, just when it is needed the most PCM fails whereas PE does not. From this, we conclude that PE is a more reliable measure of competition.

Multipartite Entanglement Measure

In this paper, we generalize the residual entanglement to the case of multipartite states in arbitrary dimensions by making use of a new method. Through the introduction of a special entanglement measure, the residual entanglement of mixed states takes on a form that is more elegant than that in Ref.[7] (Phys.Rev.A 61 (2000) 052306) . The result obtained in this paper is different from the previous one given in Ref.[8] (Phys.Rev.A 63 (2000) 044301). Several examples demonstrate that our present result is a good measurement of the multipartite entanglement. Furthermore, the original residual entanglement is a special case of our result.Comment: 5 page

The Measure of Civilizations

Is it possible to compare civilizations one with another? Is it possible, in other words, to construct some neutral and objective framework in terms of which we could establish in what respects one civilization might deserve to be ranked more highly than its competitors? Morality will surely provide one axis of such a framework (and we note in passing that believers in Islam might quite reasonably claim that their fellow-believers are characteristically more moral than are many in the West). Criteria such as material well-being will need to play a role, too, as also will happiness or pleasure (and again we note that it is not clear a priori that there is more happiness in the West than there is in other civilizations). But even happiness (pace some proponents of the utilitarian philosophy) comes in different types, and to count in the civilization stakes the happiness involved would presumably need to be of the right kind. We explore what this might mean in terms of the idea of a self-chosen life plan