Dresden 2006 – scientific programme
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AKSOE: Physik sozio-ökonomischer Systeme
AKSOE 13: Dynamics of Groups and Organizations IV
AKSOE 13.1: Talk
Thursday, March 30, 2006, 14:00–14:30, BAR 205
Efficiency and evolution of hierarchical organizations — •Marco Lamieri 1 and Diana Mangalagiu 2 — 1University of Turin, Piazza Albarello 8, Torino Italy — 2Reims Management School, 59, rue Taittinger, 51061 Reims, France
We focus on the agent-based modelling of an organization considering the interplay between three views of it: a formal, a process and a social view. The formal view is the organizational hierarchy; the process view is the way the organization performs a complicated task; the social view represents the informal relations between the agents. Each view of the firm is dynamic and is modelled as a network, where the nodes represent the agents. The process emerges from the interaction between formal and social network and it affects the economic performance of the simulated organization. Each agent is autonomous, has skills and is able to perform a part of a task. The task is performed through agents’ interaction until completion. The process network ties are defined by an evolutionary algorithm that reinforces the links used the most frequently and lowers the strength of the less used links. We investigate the influence of the three structures on the organization efficiency and the organization dynamics in different market conditions. We identify the emergence of a stable shape of the structure under particular market conditions and we test its robustness to exogenous shocks like movements of demand and product differentiation.