Modeling supply-side dynamics of it components, products, and infrastructure: An empirical analysis using vector autoregression

Gediminas Adomavicius, Jesse Bockstedt, Alok Gupta

Research output: Contribution to journalArticlepeer-review

56 Scopus citations


Prior IS research on technological change has focused primarily on organizational information systems and technology innovation; however, there is a growing need to understand the dynamics of supply-side forces in the introduction of new technologies. In this paper we investigate how the interdependencies among information technology components, products, and infrastructure affect the release of new technologies. Going beyond the ad hoc heuristic approaches applied in previous studies, we empirically validate the existence of several patterns of supply-side technology relationships in the context of wireless networking. We use vector autoregression (VAR) to model the comovements of new component, product, and infrastructure introductions and provide evidence of strong Granger-causal interdependencies. We also demonstrate that substantial improvements in forecasting can be gained by incorporating these cross-level effects into models of technological change. This paper provides some of the first research that empirically demonstrates these cross-level effects and also provides an exposition of VAR methodology for both analysis and forecasting in IS research.

Original languageEnglish (US)
Pages (from-to)397-417
Number of pages21
JournalInformation Systems Research
Issue number2
StatePublished - 2012
Externally publishedYes


  • Information systems and technology trends
  • Supply-side forces
  • Technological change
  • Technology ecosystems
  • Technology forecasting
  • Time series analysis
  • Vector autoregression

ASJC Scopus subject areas

  • Management Information Systems
  • Information Systems
  • Computer Networks and Communications
  • Information Systems and Management
  • Library and Information Sciences


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