Feenstra, Robert; Diewert, Erwin - Economics Department, University of California-Davis - 2003
related commodities; and linear interpolation, which uses the last and next observations for the item to linearly interpolate …. Certain hybrid techniques, combining either carry-forward or cell-mean with linear interpolation, are also considered. Our … the price index: (3) linear interpolation results in less fluctuation of prices than the true series: (4) combining either …