“In the last decade's intensive study of all sorts of social and economic time series, it has become clear, it seems to me, that the usual time series technique is not quite adequate for the purpose which the social investigator is pursuing… We want to find out on more or less empirical grounds what is actually present in the series at hand, that is to say, what sort of components the series contains.”
Ragnar Frisch, " A method of decomposing an empirical series into its cyclical and progressive components http://www.sv.uio.no/econ/om/tall-og-fakta/nobelprisvinnere/ragnar-frisch/published-scientific-work/rf-published-scientific-works/rf1931e.pdf." Journal of the American Statistical Association 26.173A (1931): 73-78.
1930s
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Ragnar Frisch 26
Norwegian economist 1895–1973Related quotes

T. W. Anderson. The Statistical Analysis of Time Series http://books.google.com/books?hl=nl&lr=&id=rCOzXIC8ZLkC&oi=fnd&pg=PR11, (1971/2011), p. 1. Introduction; Cited in: American Sociological Association (1974), Sociological Methodology, p. 310

The Law of Mind (1892)
In an interview (March 1960) with David Sylvester, edited for broadcasting by the BBC first published in ‘Living Arts, June 1963; as quoted in Interviews with American Artists, by David Sylvester; Chatto & Windus, London 2001, p. 31
1960s

"The Tyranny of Values" (1967)