The next notable development in the area of dynamic specification was the distributed
lag model. Although the idea of distributed lags had been familiar to economists through
the pioneering work of Irving Fisher (1930) on the relationship between the nominal
interest rate and the expected inflation rate, its application in econometrics was not
seriously considered until the mid 1950s. The geometric distributed lag model was used
for the first time by Koyck (1954) in a study of investment. Koyck arrived at the geometric
distributed lag model via the adaptive expectations hypothesis. This same hypothesis
was employed later by Cagan (1956) in a study of demand for money in conditions of
hyperinflation, by Friedman (1957) in a study of consumption behaviour and by Nerlove
(1958a) in a study of the cobweb phenomenon. The geometric distributed lag model
was subsequently generalized by Solow (1960), Jorgenson (1966) and others, and was
extensively applied in empirical studies of investment and consumption behaviour. At
about the same time Almon (1965) provided a polynomial generalization of Fisher’s
(1937) arithmetic lag distribution which was later extended further by Shiller (1973).
Other forms of dynamic specification considered in the literature included the partial
adjustment model (Nerlove, 1958b; Eisner and Strotz, 1963) and the multivariate flexible
accelerator model (Treadway, 1971) and Sargan’s (1964) work on econometric time series
analysis which formed the basis of error correction and cointegration analysis that followed
next.
The next notable development in the area of dynamic specification was the distributed
lag model. Although the idea of distributed lags had been familiar to economists through
the pioneering work of Irving Fisher (1930) on the relationship between the nominal
interest rate and the expected inflation rate, its application in econometrics was not
seriously considered until the mid 1950s. The geometric distributed lag model was used
for the first time by Koyck (1954) in a study of investment. Koyck arrived at the geometric
distributed lag model via the adaptive expectations hypothesis. This same hypothesis
was employed later by Cagan (1956) in a study of demand for money in conditions of
hyperinflation, by Friedman (1957) in a study of consumption behaviour and by Nerlove
(1958a) in a study of the cobweb phenomenon. The geometric distributed lag model
was subsequently generalized by Solow (1960), Jorgenson (1966) and others, and was
extensively applied in empirical studies of investment and consumption behaviour. At
about the same time Almon (1965) provided a polynomial generalization of Fisher’s
(1937) arithmetic lag distribution which was later extended further by Shiller (1973).
Other forms of dynamic specification considered in the literature included the partial
adjustment model (Nerlove, 1958b; Eisner and Strotz, 1963) and the multivariate flexible
accelerator model (Treadway, 1971) and Sargan’s (1964) work on econometric time series
analysis which formed the basis of error correction and cointegration analysis that followed
next.
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