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Political science has given policy makers many useful methods and models for understanding continuities in the world. The utility of many models that were specified with statistical analysis is likely to be undermined as relations among variables change. Today, globalization, the rapid diffusion of technology, the internet, nongovernment organizations, environmental stresses, and population growth and migration present policy makers with unfamiliar challenges. To keep from being surprised, policy makers need methods that indicate possible outcomes but do not specify probabilities, which can be misleading. Instead, policy makers should have analytic methods that warn of discontinuities and illuminate the forces and processes shaping events. Methods based on or compatible with complexity theory seem promising. I describe two methods that can meet the needs of policy makers: Bueno de Mesquita’s political expected utility models and multiple scenario analysis. But methods or theories alone will not keep policy makers from being surprised by future developments. It will also be crucial to ask the right questions.
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Reform programs sometimes falter because they are politically infeasible. Policy change inevitably creates winners and losers, so those with vested interests strike bargains to determine how far and how quickly reform should advance. Understanding these micro political dynamics of reform can mean the difference between a successful intervention that gains political traction and a well-intentioned gambit that falls short of achieving its developmental objectives. Donors like the World Bank have been searching for ways to take these political factors more fully into account as they design programs to support country reforms. This initiative sought to introduce a rigorous and operationally usable political analysis tool that could be systematically integrated into the World Bank’s country programming cycle. The East Asia and Pacific region carried out a multi-country pilot of the Agent-Based Stakeholder Model. This innovative analytical approach entails a quantitative simulation of the complex bargaining dynamics surrounding reform. The model anticipates stakeholder coalition formation and gauges the political feasibility of alternative proposed interventions. This paper provides a review of the Agent-Based Stakeholder Model pilot experience, exploring what sets this model apart from more traditional approaches, how it works, and how it fits into the Bank’s operational cycle at various stages. An overview of the Mongolia, Philippines, and Timor-Leste country cases is followed by an examination of policy-related insights and lessons learned. Finally, the paper builds on this East Asian pilot experience, offering ideas on a potential way forward for organizations like the World Bank to deepen and extend their political analysis capabilities. The paper argues that the Agent-Based Stakeholder Model, utilized thoughtfully, offers a powerful addition to the practical political economy toolkit.
SIENA is a program for the statistical analysis of network data, with the focus on social networks.
Networks here are understood as entire (complete) networks, not as personal (egocentered) networks: it is assumed that a set of nodes (social actors) is given, and all ties (links) between these nodes are known – except perhaps for a moderate amount of missing data.
SIENA is designed for analyzing various types of data as dependent variables:
Longitudinal data of networks and behavior:
Cross-sectional network data.
The name SIENA stands for Simulation Investigation for Empirical Network Analysis.
The main approach used by SIENA for modeling dynamics of network (or of networks and behavior) is an actor-oriented model, in which it is assumed that the social actors who are represented by the nodes in the network play a crucial role in changing their ties to other actors; in the case of associated behavior dynamics, also in changing their behavior. All of these models are Markov chain models; such models are more applicable to relations and behavioral variables that can be regarded as states than to relations or behavior that are more adequately regarded as non-enduring events.
The statistical analysis in SIENA is done on the basis of computer simulation of the network. This can be time consuming. In view of the detailed approach to network dynamics and the required computing resources, the method is applicable in principle to networks on approximately 10 to 1,000 nodes.
A scientific summary is given below. The methods implemented in SIENA are described in the papers given in the webpage with literature. Some further articles with applications are given in the webpage with further applications. The program is obtained as a package within Rand the extensive manual is downloadable here.
There exists a User Group for Siena and StOCNET to exchange information and seek technical advice on using the Siena and StOCNET software to analyze network data.
The address is http://groups.yahoo.com/groups/stocnet/.
SIENA version 4 is also called RSiena, a contributed package for the R statistical system, which can be downloaded from http://cran.r-project.org.
The incorporation of RSiena in R makes available all other possibilities offered by R; in particular, to execute R in a Mac or Unix/Linux environment. Further information on RSiena is on the RSiena page.
The transition from the Windows-based SIENA 3 to the R-based, multi-platform SIENA 4, also called RSiena, is complete since Summer 2011, in the sense that practically all longitudinal functionalities of SIENA 3 have been implemented for SIENA 4; since then, many new functionalities have been added, and this is still going on.
The SIENA 3 program also contains methods for analyzing Exponential Random Graph Models (ERGMs). For the latter methods, users now are referred to the standalone program pnet or the R package statnet, although the old SIENA version 3 still is available for those who wish to use it.
Further work on the StOCNET interface is discontinued.
Known bugs and new papers are given at the news webpage.
The SIENA program is part of an ongoing research effort. The research team is composed of Tom Snijders, Christian Steglich, Johan Koskinen, Josh Lospinoso, Charlotte Greenan, Nynke Niezink, and Christoph Stadtfeld, with earlier contributions from Ruth Ripley, Krists Boitmanis, Paulina Preciado, Michael Schweinberger, Mark Huisman, and Marijtje van Duijn. Current research projects are given at theresearch projects webpage. Courses and a user group are mentioned at the activities webpage.
SIENA version 3 was written in Delphi, for use under Windows. For those who still wish to use Siena 3 it is strongly advised to use the most recent version. This can be downloaded from the downloads page.
The SIENA 3 program can be executed in two ways. Many people find it convenient to execute it from the StOCNET environment. It is also possible to execute SIENA 3 as a stand alone program. The StOCNET project was an activity of Christian Steglich, Tom Snijders, andSciencePlus (Minne Oostra), with important earlier contributions from Evelien Zeggelink, Peter Boer, Bert Straatman, Mark Huisman, and others.
I present a decision process framework that informs the design and implementation of stakeholder influence strategy. This process combines insights from agent-based dynamic utility and dynamic network processes. Stakeholders strategically seek an outcome as close as possible to their preferred point but also wish to be on the winning side and not to pursue positions divergent from stakeholders with whom they have strong affective ties. Simulation analysis highlights important effects from embedding stakeholders within such an interdependent policymaking network. The resulting decision process framework can be used by firms to assess the likely dynamics within such a stakeholder network as well as to compare alternative treatments to that network for their efficacy in securing a favorable policy outcome, collective decision, or shift in group opinion.
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