“The object of this paper is fivefold. The first objective is to derive a practical system of demand equations which possess properties usually considered desirable from the standpoint of elementary economic theory. The second is to consider the statistical problems involved in applying the system of equations. The third is to analyse the pattern of demand for consumers' goods in terms of this system on the basis of annual data relating to the United Kingdom over the years 1920-38. The fourth is to compare the results of this system, and systems like it, with the actual state of demand in 1900. Finally, the fifth is to compare the post-war structure of demand with what might be expected from the inter-war relationshipp under free-market condition.”

—  Richard Stone

Stone, Richard. " Linear expenditure systems and demand analysis: an application to the pattern of British demand http://www.jstor.org/discover/10.2307/2227743?uid=3738736&uid=2&uid=4&sid=21104302232953." The Economic Journal (1954): 511-527.

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British economist, Nobel Memorial Prize winner 1913–1991

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