Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
The Theil-Tornqvist index number is widely used for binary comparisons of prices, output, and productivity. This paper describes various generalizations of the Theil-Tornqvist index for purposes of multilateral spatial comparisons due to Douglas W. Caves, Laurits R. Christensen, and W. Erwin Diewert, and more recent further generalizations due to D. S. Prasada Rao and E. Anthony Selvanathan based on the 'stochastic approach' to index numbers. The applicability of the new index numbers is demonstrated using international comparison data on private consumption expenditure and manufacturing-sector output. Copyright 1995 by MIT Press.