Mattias Lundbeck research fellow at the Swedish free market think tank Ratio has an interesting link to a paper by Gunnar Örn over at Scott Sumner’s blog. The paper is from 1999 and is in Swedish (so sorry to those of you who do not read and understand Scandinavian…).

The paper reminded me that David Davidson – who was a less well known member of the Stockholm School – was a early proponent of a variation of the productivity norm. Davidson suggested that the monetary authorities should decompose the price index between supply factors and monetary/demand factors. Hence, this is pretty much in line with what I recently have suggested with my Quasi-Real Price Index (strongly inspired by David Eagle). Davidson’s method is different from what I have suggested, but the idea is nonetheless the same.

George Selgin has discussed Davidson’s idea extensively in his research. See for example here from “Less than Zero”:

“In his own attempt to assess the wartime inflation Swedish economist David Davidson came up with an ‘index of scarcity’ showing the extent to which the inflation was due to real as opposed to monetary factors (Uhr, 1975, p. 297). Davidson subtracted his scarcity index from an index of wholesale prices to obtain a residual representing the truly monetary component of the inflation, that is, the component reflecting growth in aggregate nominal spending.”

I hope in the future to be able to follow up on some of Davidson’s work and compare his price decomposition with my method (I should really say David Eagle’s method). Until then we can hope that some of our Swedish friends will pitch in with comments and suggestions.

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Mattias has a update on his blog on this comment. See here (Swedish)