ICT Diffusion and Distribution Dataset, 1990-2007 (ICPSR 23562)

Version Date: Mar 22, 2010 View help for published

Principal Investigator(s): View help for Principal Investigator(s)
Philip N. Howard, University of Washington; Laura Busch, University of Washington; Spencer Cohen, University of Washington


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This dataset covers the years 1990 through 2007 and contains two types of indicators for the global distribution of information, communication and technology (ICT) resources. The data includes gini coefficients for the distribution of Internet access within countries, and a technology diffusion index that weights the distribution of broadband subscribers, personal computers, mobile phones, Internet users, and international Internet bandwidth by economic output. The data are secondary source data, based on the analysis of primary data from 204 surveys fielded in 47 countries.

Howard, Philip N., Busch, Laura, and Cohen, Spencer. ICT Diffusion and Distribution Dataset, 1990-2007. Inter-university Consortium for Political and Social Research [distributor], 2010-03-22. https://doi.org/10.3886/ICPSR23562.v1

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Peoples and Practices Group (IIS-0713074), National Science Foundation (IIS-0713074)
Inter-university Consortium for Political and Social Research

1990 -- 2007
1990 -- 2007
  1. Information concerning weights are found in the codebook.


Please refer to the codebook for information regarding the sample.



2018-02-15 The citation of this study may have changed due to the new version control system that has been implemented. The previous citation was:
  • Howard, Philip N., Laura Busch, and Spencer Cohen. ICT Diffusion and Distribution Dataset, 1990-2007. ICPSR23562-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2010-03-22. http://doi.org/10.3886/ICPSR23562.v1

2010-03-22 Edited PI field to correct organization information.

2009-05-29 ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection:

  • Checked for undocumented or out-of-range codes.

Detailed weight information is contained in the codebook.