TY - JOUR
AB - This article demonstrates that, for a finite distributed lag, the polynomial distributed lag (PDL) approximation suggested by Almon is a special case of the rational lag method formalized by Jorgenson. The proof relies upon the fact that the PDL estimator imposes differencing restrictions upon the parameters while rational lag methods impose quasi-differncing restrictions. Because of this relationship, the PDL restrictions are nested inside the rational lag ones, and this provides for a sequence of tests to discriminate between the two. An example is performed and an appendix describes an asymptotically efficient two-step estimator
AU - Pagan, AR
DA - 1978/01/01
EP - 254
JO - Journal of Econometrics
PB - Elsevier Science Publishers B.V.
PY - 1978/01/01
SP - 247
TI - Rational and polynomial lags : The finite connection
VL - 8
Y1 - 1978/01/01
Y2 - 2023/03/23
ER -