Journeys Home: Tracking the most vulnerable

In 2010 the Australian Government commissioned The Melbourne Institute of Applied Economic and Social Research at the University of Melbourne to undertake "Journeys Home (JH): A Longitudinal Study of the Factors Affecting Housing Stability". The broad aim of JH was to improve the understanding of, and policy responses to, the diverse social, economic and personal factors related to homelessness and the risk of becoming homeless. Importantly, JH is one of the first longitudinal studies of homeless people that both draws it sample from a wide population and includes people who are vulnerable to homelessness. This paper provides a brief summary of the JH survey, discussing its aims, survey design, data collection process, and response outcomes over its six waves of data collection. It also highlights some of the initial research that has been published utilising the data since its release

The effects of China’ s VAT enlargement reform on the income redistribution of urban households

Background: China's former goods and service tax (GST) system subjects sale of goods to VAT and provision of services to business tax. The VAT enlargement reform launched in 2012 aimed to replace the business tax with VAT step by step. This paper is intended to explore the redistribution effects of this reform. Methods: On basis of input-output model and statutory tax rates, this paper derives the measurement of full GST burden of households in China where both VAT and business tax are imposed. Using the 2012 urban household survey data, the redistribution effects of the VAT enlargement reform is estimated by comparing the Gini coefficient and general entropy indexes before and after the reform. Results: The VAT enlargement reform has improved the redistribution effects of China's GST system mainly through lowering the average tax burden and reducing the inequality within the lowest-income group, though the inequality among different income groups was not reduced considerably. Conclusions: Compared with overall rate reduction, greater relief to necessity items could improve the redistribution effects of the future VAT system more effectively

A note on the parametric maximum flow problem and some related reoptimization issues

In this paper, we will extend the results about the parametric maximum flow problem to networks in which the parametrization of the arc capacities can involve both the source and the sink, as in Gallo, Grigoriadis, and Tarjan (1989), and also an additional node. We will show that the minimum cuts of the investigated networks satisfy a relaxed form of the generalized nesting property (Arai, Ueno, and Kajitani, 1993). A consequence is that the corresponding parametric maximum flow value function has at most n − 1 breakpoints. All the minimum cut capacities can therefore be computed by O(1) maximum flow computations. We will show then that, given O(n) increasing values of the parameter, it is possible to compute the corresponding maximum flows by O(1) maximum flow computations, by suitably extending Goldberg and Tarjan’s maximum flow algorithm