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AGGREGATE DEMAND FOR NITROGENOUS FERTILISER IN THE UNITED KINGDOM: ANOTHER LOOK *
Author(s) -
Lingard John
Publication year - 1971
Publication title -
journal of agricultural economics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.157
H-Index - 61
eISSN - 1477-9552
pISSN - 0021-857X
DOI - 10.1111/j.1477-9552.1971.tb01731.x
Subject(s) - aggregate (composite) , economics , econometrics , aggregate data , kingdom , series (stratigraphy) , aggregate demand , agricultural economics , macroeconomics , mathematics , statistics , geology , monetary policy , paleontology , materials science , composite material
Economic theory must be subjected to continuous empirical testing and verification. Consequently any econometric model proposed may be re‐tested and modified in the light of imporved data availability and additional observations generated by the real world. This paper re‐examines U.D. aggregate demand for nitrogen: after otaining a meaningful data series for the price of nitrogen it is found that earlier functions fitted do not now stand up to the passage of time. Alternarte hypotheses are then put forward.