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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)
We propose a modal action logic that combines ideas from H.A. Simon's bounded rationality, 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 for two-place preference operators. ALX avoids important drawbacks of other action logics,(More)
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)
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)