Thomas wrote:georgeob1 wrote:That definition (at least as you have described it) is basically meaningless without a specification of the minimum time scale for the discrete measurements of activity.
Huh? If the definition is "two or more consecutive quarters of economic decline", then the minimum time scale is implicitly defined as one quarter. What's unspecified about it? And anyway, what difference would it make if the interval was a month instead?
Please read the referenced poasts. There was no specification of the minimum time scale in the referenced definition, and the absence of one in the associated dispute was indeed the very reason the disputers were merely talking past each other.
Surely one as well versed in physics and economics as you understands the problems attendant to discrete sampling of continuous variables and the aliasing and other distortions that can result. They are indeed dependent on the sampling interval, despite your assertion to the contrary.