Recent developments in macroeconomic theory emphasize that transient economic fluctuations can arise as responses to changes in long run factors -- in particular, technological improvements -- rather than short run factors. This contrasts with the view that short run fluctuations and shifts in...

This paper conducts a modern variant of the test proposed and carried out by Adelman and Adelman (1959). Using the methods developed by Burns and Mitchell (1946). we see if we can distinguish between the economic series generated by an actual economy and those analogous artificial series...