An Agent Operationalization Approach for Context Specific Agent-Based Modeling

The potential of agent-based modeling (ABM) has been demonstrated in various research fields. However, three major concerns limit the full exploitation of ABM; (i) agents are too simple and behave unrealistically without any empirical basis, (ii) \'proof of concept\' applications are too theoretical and (iii) too much value placed on operational validity instead of conceptual validity. This paper presents an operationalization approach to determine the key system agents, their interaction, decision-making and behavior for context specific ABM, thus addressing the above-mentioned shortcomings. The approach is embedded in the framework of Giddens\' structuration theory and the structural agent analysis (SAA). The agents\' individual decision-making (i.e. reflected decisions) is operationalized by adapting the analytical hierarchy process (AHP). The approach is supported by empirical system knowledge, allowing us to test empirically the presumed decision-making and behavioral assumptions. The output is an array of sample agents with realistic (i.e. empirically quantified) decision-making and behavior. Results from a Swiss mineral construction material case study illustrate the information which can be derived by applying the proposed approach and demonstrate its practicability for context specific agent-based model development.Agent Operationalization, Decision-Making, Analytical Hierarchy Process (AHP), Agent-Based Modeling, Conceptual Validation

Geoweb 2.0 for Participatory Urban Design: Affordances and Critical Success Factors

In this paper, we discuss the affordances of open-source Geoweb 2.0 platforms to support the participatory design of urban projects in real-world practices.We first introduce the two open-source platforms used in our study for testing purposes. Then, based on evidence from five different field studies we identify five affordances of these platforms: conversations on alternative urban projects, citizen consultation, design empowerment, design studio learning and design research. We elaborate on these in detail and identify a key set of success factors for the facilitation of better practices in the future

'Word from the street' : when non-electoral representative claims meet electoral representation in the United Kingdom

Taking the specific case of street protests in the UK – the ‘word from the street’– this article examines recent (re)conceptualizations of political representation, most particularly Saward’s notion of ‘representative claim’. The specific example of nonelectoral claims articulated by protestors and demonstrators in the UK is used to illustrate: the processes of making, constituting, evaluating and accepting claims for and by constituencies and audiences; and the continuing distinctiveness of claims based upon electoral representation. Two basic questions structure the analysis: first, why would the political representative claims of elected representatives trump the nonelectoral claims of mass demonstrators and, second, in what ways does the ‘perceived legitimacy’ of the former differ from the latter

Appendix I: Drafting legislation for development: lessons from a Chinese project

A discussion on the different theoretical issues regarding development legislation that divide economists and lawyers

Breaking the Constitutional Deadlock: Lessons from Deliberative Experiments in Constitutional Change

This work provides comparative insights into how deliberation on proposed constitutional amendments might be more effectively pursued. It reports on a new nationwide survey of public attitudes to constitutional reform, examining the potential in Australia of innovative Canadian models of reform led by Citizens' Assemblies. Assembly members are selected at random and are demographically representative of the wider public. They deliberate over reforms for several months while receiving instruction from experts in relevant fields. Members thus become 'public-experts': citizens who stand in for the wider public but are versed in constitutional fundamentals. The author finds striking empirical evidence that, if applied in the Australian context, public trust would be substantially greater for Citizens' Assemblies compared with traditional processes of change. The article sets these results in context, reading the Assemblies against theories of deliberative democracy and public trust. One reason for greater public trust in the Assemblies' may be an ability to accommodate key values that are otherwise in conflict: majoritarian democratic legitimacy, on the one hand, and fair and well-informed (or 'deliberatively rational') decision-making, on the other. Previously, almost no other poll had asked exactly how much Australians trust in constitutional change. However, by resolving trust into a set of discrete public values, the polling and analysis in this work provide evidence that constitutional reform might only succeed when it expresses, at once, the values of both majoritarian and deliberative democracy