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Hi Edmund, Great article on the historical case studies. Note that a replication of Hagerstrand's model is available at https://www.openabm.org/model/3163/version/2/view Marco -----Original Message----- From: News and discussion about computer simulation in the social sciences [mailto:[log in to unmask]] On Behalf Of Edmund Chattoe-Brown Sent: Thursday, May 01, 2014 6:40 AM To: [log in to unmask] Subject: [SIMSOC] Those who cannot remember the past are condemned to repeat it? Dear All, "The fact remains that we have models running out of our ears, and there seems to be no surcease. This may be quite healthy; at least lots of people are getting skilled in drawing boxes, arrows, and circular nodes. But all of these models cannot be right, or even useful or believable, and evaluation seems to be rather low on the priority list. It seems to be easier to formulate a new model than to test an old one, and one never gets pinned down that way." (Underwood, B. J., 1975, Individual Differences as a Crucible in Theory Construction, American Psychologist, 30, p. 128) To that end: Using Agent Based Modelling to Integrate Data on Attitude Change Edmund Chattoe-Brown Sociological Research Online, 19 (1) 16 <http://www.socresonline.org.uk/19/1/16.html> [This article has two goals. Firstly, it shows how a relatively novel technique (Agent Based Modelling, hereafter ABM) can integrate different data types that are often used only in separate strands of research (interviews, experiments and surveys). It does this by comparing a well-known ABM of attitude dynamics with an alternative model using data from surveys and experiments. Secondly, the article explains ABM methodology and why it is important to the distinctiveness of ABM as a research method. In particular, the ramifications of differing approaches to ABM calibration and validation are discussed using the two different ABM as examples. The article concludes by showing how ABM might provide a progressive research strategy for integrating different data types and thus different disciplines in attitude research.] Is Simulating Forgetting Its History?Two Case Studies Edmund Chattoe-Brown <https://www.academia.edu/2989323/Is_Simulating_Forgetting_Its_History_Two_Case_Studies> [Because simulation has survived out of the social science mainstream for so long it has, through marginality in the modes of knowledge transmission, apparently forgetten important aspects of its history. This paper presents two case studies illustrating this concern and explores the implications of the fact that we have forgotten calibrated and validated models meeting standards that much current work does not. The potentially harmful consquences (both for good research and the standing of the discipline) are discussed. The paper concludes with proposals for taking the history of simulation more seriously.] All the best, Edmund --- Edmund Chattoe-Brown [log in to unmask] -- http://www.fastmail.fm - The way an email service should be