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A leading sociological theory of crime is the “routine activities” approach (Cohen and Felson, 1979). The premise of this ecological theory is that criminal events result from likely offenders, suitable targets, and the absence of capable guardians against crime converging nonrandomly in time and space. Yet prior research has been unable to employ spatial data, relying instead on individual- and household-level data, to test that basic premise. This analysis supports the premise with spatial data on 323,979 calls to police over all 115,000 addresses and intersections in Minneapolis over 1 year. Relatively few “hot spots” produce most calls to Police (50% of calls in 3% of places) and calls reporting predatory crimes (all robberies at 2.2% of places, all rapes at 1.2% of places, and all auto thefts at 2.7% of places), because crime is both rare (only 3.6% of the city could have had a robbery with no repeat addresses) and concentrated, although the magnitude of concentration varies by offense type. These distributions all deviate significantly, and with ample magnitude, from the simple Poisson model of chance, which raises basic questions about the criminogenic nature of places, as distinct from neighborhoods or collectivities.  相似文献   
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Recent cross‐national comparative studies have found no effect of countries’ macroeconomic performances on trust in national political institutions, once political explanations (most notably corruption) are taken into account. Although political trust is not determined by the comparison of national economic performance to other countries, it is argued in this article that it is affected by comparisons to their own past performance. In a multilevel, fixed effects analysis of Eurobarometer data (21 waves in 15 European Union Member States between 1999 and 2011) the extent to which within‐country variations in economic performance affect political trust longitudinally is tested. Three major conclusions are reached. First, within‐country, longitudinal changes in performance (growth, deficits, unemployment and inflation) affect political trust. Second, the impact of macroeconomic performance is stronger among the lower educated. Third, even in times of economic duress, budgetary deficits tend to undermine political trust.  相似文献   
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