Equilibrium diffusion of technological change through multiple processes

Equilibrium diffusion of technological change through multiple processes

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Article ID: iaor19911861
Country: United States
Volume: 39
Issue: 3
Start Page Number: 265
End Page Number: 290
Publication Date: May 1991
Journal: Technological Forecasting & Social Change
Authors:
Abstract:

This paper provides a synthesis of recent contributions to the literature of equilibrium diffusion of technological change, points out a difficulty common to all, and offers a proposal to resolve the difficulty. Diffusion can be regarded as the result of processes involving changing circumstances in an environment of heterogeneous agents. If diffusion arises from simultaneous operation of multiple processes, the ceteris paribus qualification necessary for theoretical work may be stringent; for empirical work, parameters of individual processes cannot be identified without specifying a multiple-process model. But nontrivial multiple-process models are generally analytically intractable. The paper’s synthesis of the literature is based on a heuristic multiprocess equilibrium model of the adoption decision and proposes numerical simulation as an avenue to escape the related problems of tractability and identification. A numerical experiment with a prototype multiprocess simulation model suggests the possible importance of interaction among processes. Recent econometric advances offer new prospects for estimation of the parameters of such models.

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