The Analysis of Spatial Association by Use of Distance Statistics

Introduced in this paper is a family of statistics, G, that can be used as a measure of spatial association in a number of circumstances. The basic statistic is derived, its properties are identified, and its advantages explained. Several of the G statistics make it possible to evaluate the spatial association of a variable within a specified distance of a single point. A comparison is made between a general G statistic and Moran's I for similar hypothetical and empirical conditions. The empirical work includes studies of sudden infant death syndrome by county in North Carolina and dwelling unit prices in metropolitan San Diego by zip-code districts. Results indicate that G statistics should be used in conjunction with I in order to identify characteristics of patterns not revealed by the I statistic alone and, specifically, the G_i and G_i* statistics enable us to detect local “pockets” of dependence that may not show up when using global statistics.     

Organisation and political analysis

The advent of the Hawke government may not warrant the title of ‘The Revolution in Australian Politics’, but it has raised questions about organisation and power, and the way in which these are handled in political science. This paper begins by identifying what is considered problematic in the political practices which are seen as distinctive in the Hawke government. It outlines the elements of the paradigm of organisation which underlies much political science, and identifies the way in which these are challenged by ‘corporatist’ or ‘Hawkeish’ forms of political activity. It argues that this paradigm of organisation is under attack on both conceptual and empirical grounds, and outlines an alternative paradigm of organisation and the way in which it applies to government. It concludes with a consideration of the implications of this approach for theorising about the state.