Please use this identifier to cite or link to this item: http://hdl.handle.net/2123/7788

Title: Using Agent-Based Models to Understand the Surprising Complexity of Global Markets
Authors: Earnest, David
University of Sydney Business School
Keywords: Agent
Modelling
Complex
Complexity
Systems
Business
Markets
Simulation
Management
Marketing
Interaction
Strategic
Ecological
Reflexive
Non-linear
Emergence
Network
Economy
Adaptive
Complex Adaptive Systems
Issue Date: 6-Jul-2011
Series/Report no.: ABM Wednesday Colloquium
1
Abstract: Why is the economy “complex”? For all the recent advances in the management sciences, businesses today face markets full of unexpected events, from cascading failures of lending institutions to speculative investment and the explosive growth of tech firms. In this talk, I argue that the complexity sciences, particularly a simulation methodology known as agent-based modeling, will help key decision-makers anticipate the global dynamics of modern consumers, firms and markets. The talk demonstrates that many of the “surprises” we observe in today’s economy arise from our poor understanding of the relationship between what Nobel laureate Thomas Schelling called “micro motives and macro behavior”—that is, how individual decisions produce social structural outcomes. Our thinking tends to suffer from two fallacies: of composition (inferring structural properties from observing the behavior of individuals) and the ecological fallacy (inferring individual attributes from observing social aggregates). The talk illustrates how agent-based modeling helps us bridge the divide between individual agency and social structure. Using examples from economics and politics, I illustrate the four principal causes of complexity in today’s business climate: interaction effects, strategic complexity, ecological complexity, and reflexive complexity.
Description: Presentation by Associate Professor David Earnest from Old Dominion University (U.S.A.) at the Agent-Based Modelling Intensive Course Wednesday Colloquium, held at The University of Sydney Business School in July 2011. This presentation gives an introduction to complexity, the types of complexity, and how agent-based modelling can be used to understand complex systems.
URI: http://hdl.handle.net/2123/7788
Department/Unit/Centre: University of Sydney Business School
Type of Work: Presentation
Recording, oral
Video
Appears in Collections:Agent-Based Modelling

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DEarnest.mp3Audio File (.mp3)47.45 MBMP3View/Open
DEarnest.mp4Video Format MPEG-4 (Windows/MacOS)65.67 MBMPEG-4View/Open
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