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Building on a formal theory of the structural aspects of organizational change initiated in Hannan, Pólos, and Carroll (2002a, 2002b), this paper focuses on structural inertia. We define inertia as a persistent organizational resistance to changing architectural features. We examine the evolutionary consequences of architectural inertia. The main theorem… (More)

Sociologists frequently invoke the concept of form when analyzing organizations, collective action, art, music, culture and other phenomena. Nonetheless, the form concept has not received careful theoretical analysis, either generally or in specific context. Using the tools of formal logic, set theory, and algebra, we propose a language for defining social… (More)

- Michael T. Hannan, László Pólos, Glenn R. Carroll
- Organization Science
- 2003

This article develops a formal theory of the structural aspects of organizational change. It concentrates on changes in an organization’s architecture, depicted as a code system. It models the common process whereby an initial architectural change prompts other changes in the organization, generating a cascade of changes that represents the full… (More)

- Zhisheng Huang, Michael Masuch, László Pólos
- Artif. Intell.
- 1996

We propose a modal action logic that combines ideas from H.A. Simon’s bounded rationality, S. Kripke’s possible world semantics, G.H. von Wright’s preference logic, Pratt’s dynamic logic, Stalnaker’s minimal change and more recent approaches to update semantics. ALX (the xth action logic) is sound, complete and decidable, making it the first complete logic… (More)

We investigate how sociological argumentation di ers from the classical rstorder logic. We focus on theories about age dependence of organizational mortality. The overall pattern of argument does not comply with the classical monotonicity principle: adding premises does not overturn conclusions in an argument. The cause of nonmonotonicity is the need to… (More)

- Gaël Le Mens, Michael T. Hannan, László Pólos
- Organization Science
- 2015

Various patterns of age dependence in hazards of organizational failure have been documented: liabilities of newness, adolescence and obsolescence. Prior efforts at providing a unified theory that can accommodate these patterns as special cases have not dealt properly with obsolescence. We tackle this problem by proposing a new model that builds on the most… (More)

This paper introduces modal logics to a sociological audience. We first provide an overview of the formal properties of this family of models and outline key differences with classical first-order logic. We then build a model to represent processes of perception and belief core to social theories. To do this, we define our multi-modal language and then add… (More)

- E Harsányi, L Pólos, E Pungor
- Analytica chimica acta
- 1973

- Gaël Le Mens, Michael T. Hannan, László Pólos
- Organization Science
- 2015

This paper proposes a distance-based characterization of age-related structural inertia as an increasing constraint on the speed of change as organizations age. Our framework regards organizations as points in multi-dimensional metric spaces of architectures. Organizational change means movement in this space. The speed of change is the ratio of the… (More)

Thermal nebulization of nickel-base alloys, corundum plates and residues of solutions was performed with a laser beam. The solid aerosol was aspirated into an acetylene-air flame by an ejector. Linear analytical curves in wide concentration ranges were established and an average relative standard deviation of 10% was found. The detection limit is in the ng… (More)