Background
Arbia, Giuseppe Maria was born on July 3, 1958 in Rome. Son of Francesco and Giulia (Bergamo) Arbia.
(Figure 1. 1. Map of Great Britain at two different scale ...)
Figure 1. 1. Map of Great Britain at two different scale levels. (a) Counties, (b)Regions. '-. " Figure 1. 2. Two alternative aggregations of the Italian provincie in 32 larger areas 4 CHAPTER 1 d . , b) Figure 1. 3 Percentage of votes of the Communist Party in the 1987 Italian political elections (a) and percentage of population over 75 years (b) in 1981 Italian Census in 32 polling districts. The polling districts with values above the average are shaded. Figure 1. 4: First order neighbours (a) and second order neighbours (b) of a reference area. INTRODUCTION 5 While there are several other problems relating to the analysis of areal data, the problem of estimating a spatial correlO!J'am merits special attention. The concept of the correlogram has been borrowed in the spatial literature from the time series analysis. Figure l. 4. a shows the first-order neighbours of a reference area, while Figure 1. 4. b displays the second-order neighbours of the same area. Higher-order neighbours can be defined in a similar fashion. While it is clear that the dependence is strongest between immediate neighbouring areas a certain degree of dependence may be present among higher-order neighbours. This has been shown to be an alternative way of look ing at the sca le problem (Cliff and Ord, 1981, p. l 23). However, unlike the case of a time series where each observation depends only on past observations, here dependence extends in all directions.
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economist educator statistician
Arbia, Giuseppe Maria was born on July 3, 1958 in Rome. Son of Francesco and Giulia (Bergamo) Arbia.
Bachelor, Liceo Science Avogadro, Rome, 1976. Degree in statistics, University La Sapienza, Rome, 1981. Doctor of Philosophy, Cambridge (United Kingdom) University, 1988.
Associate researcher University La Sapienza, Rome, 1983-1992. Associate professor University Trento, Italy, 1992-1994. Professor economic statistics University Padua, Italy, 1994-1996, University Chieti, Italy, since 1995.
Professor statistics University Lugano, since 1996. Consultant Union of the Chamber of Commerce, Rome, 1981-1983. Research coordinator Italcable, Rome, 1989-1990, Telespazio, Rome, 1992-1993.
Technical commission member Houses of Parliament, Rome, since 1994.
(Figure 1. 1. Map of Great Britain at two different scale ...)
Member Royal Statistical Society, American Statistical Association, Italian Statistical Society, Regional Science Association.
Married Paola Filippi, September 8, 1986. Children: Elisa, Francesco, Enrica.