J. Faust et Em. Leeper, WHEN DO LONG-RUN IDENTIFYING RESTRICTIONS GIVE RELIABLE RESULTS, Journal of business & economic statistics, 15(3), 1997, pp. 345-353
Many recent articles have identified behavioral disturbances in vector
autoregressions by imposing restrictions on the long-run effects of s
hocks. This article demonstrates that this approach will be unreliable
unless the underlying economy satisfies three types of strong restric
tions. Although many aspects of these issues have been raised before.
this article draws out and illustrates the implications for inferences
under the long-run scheme. Furthermore, it provides strategies for de
aling with the problems.