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This chapter synthesizes empirical research from multiple disciplines about the use of GIS for decision-making in business settings. Todd & Benbasat’s model (2000) was used as a theoretical framework to identify the variables that have been studied on decision-making at the individual and collaborative level. An extensive literature review in the fields of Information Science, GIS and Decision Science from 1990 to 2002 was conducted with a total of nine studies identified in six journals and two conferences. The scarcity of published research suggests that the impact of GIS on the decision-making process has not been extensively investigated. Moreover, researchers have paid more attention to the study of GIS to support individual decision makers. The effects of variables like desired effort and decision strategy remain unexplored. More empirical work is needed to understand the impact of DSS capabilities …