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  • April 2020
  • Article
  • Industrial and Corporate Change

Technological Leadership (de)Concentration: Causes in Information and Communication Technology Equipment

By: Yasin Ozcan and Shane Greenstein
  • Format:Print
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Abstract

Using patent data from 1976 to 2010 as indicators of inventive activity, we determine the concentration level of where inventive ideas originate and then examine how and why those concentrations change over time. The analysis finds pervasive deconcentration in every area related to the Information and Communication Technology equipment market. We find that booms and busts play an important role in deconcentration trends. In comparison, new entry explains surprisingly little, and merger and acquisition activity does not revert the trend.

Keywords

Deconcentration; Technological Innovation; Innovation Leadership; Patents; Market Entry And Exit; Telecommunications Industry

Citation

Ozcan, Yasin, and Shane Greenstein. "Technological Leadership (de)Concentration: Causes in Information and Communication Technology Equipment." Industrial and Corporate Change 29, no. 2 (April 2020): 241–263.

About The Author

Shane M. Greenstein

Technology and Operations Management
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