1. Brynjolfsson, E., and L. Hitt 2005. Remarks. In Corrado, Haltiwanger, and Sichel (2005).
2. Corrado, C.A., C.R. Hulten, and D.E. Sichel. 2005a. Measuring capital and technology: An expanded framework. In Corrado, Haltiwanger, and Sichel (2005b).
3. Corrado, C.A., J. Haltiwanger, and D. Sichel, eds. 2005b. Measuring capital in the new economy. Chicago: University of Chicago Press.
4. Corrado, C.A., C.R. Hulten, and D.E. Sichel. 2006. Intangible capital and economic growth. Finance and Economics Discussion Series Paper No. 2006–24. Washington, DC: Federal Reserve Board.
5. Cummins, J.G. 2005. A new approach to the valuation of intangible capital. In Corrado, Haltiwanger, and Sichel (2005).