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From: bob on 6 Dec 2009 22:53 In article <OOmdnbTBu6wH8YHWnZ2dnUVZ_gidnZ2d(a)giganews.com>, utz(a)msu.edu says... > > bob wrote: > > In article <7PCdnQ0mMMvmiYHWnZ2dnUVZ_smdnZ2d(a)earthlink.com>, > > cewhite3remove(a)mindspring.com says... > >> "bob" <nottooslow42(a)yahoo.com> wrote in message > >> news:MPG.25839405556cc3b7989702(a)news.eternal-september.org... > >> > >>> Actually, daily average sales has been used for many years in the auto > >>> industry. > >> I'd still like to understand why November 2008 had 25 selling days and > >> November 2009 has only 23. I can see any difference in the number of days, > >> so I must be missing something. > >> > >> Ed > > > > Ed, > > > > I don't know the answer either. I was just pointing out that contrary to > > what someone suspected, this reporting method is not a recent invention > > by the automakers to make their sales look better. > > > > Bob > > I am not so sure that using selling days is not a legitimate practice. > Cars are sold only on selling days. So this may properly adjust for the > number of days that cars can be sold on during a particular month. This > may be a proper way to monitor sales. > > Personally, adjusting for the number of selling days is ok, as long as > one considers both the adjusted number and unadjusted numbers. > > Jeff Jeff, I liken it to financial statements that provide figures inclusive and exclusive of "extraordinary items". Extraordinary items can hide good or bad operating results, but are included in dividend calculations. Bob
From: C. E. White on 7 Dec 2009 00:10
"dr_jeff" <utz(a)msu.edu> wrote in message news:OOmdnbTBu6wH8YHWnZ2dnUVZ_gidnZ2d(a)giganews.com... > bob wrote: >> In article <7PCdnQ0mMMvmiYHWnZ2dnUVZ_smdnZ2d(a)earthlink.com>, >> cewhite3remove(a)mindspring.com says... >>> "bob" <nottooslow42(a)yahoo.com> wrote in message >>> news:MPG.25839405556cc3b7989702(a)news.eternal-september.org... >>> >>>> Actually, daily average sales has been used for many years in the auto >>>> industry. >>> I'd still like to understand why November 2008 had 25 selling days and >>> November 2009 has only 23. I can see any difference in the number of >>> days, so I must be missing something. >>> >>> Ed >> >> Ed, >> >> I don't know the answer either. I was just pointing out that contrary to >> what someone suspected, this reporting method is not a recent invention >> by the automakers to make their sales look better. >> >> Bob > > I am not so sure that using selling days is not a legitimate practice. > Cars are sold only on selling days. So this may properly adjust for the > number of days that cars can be sold on during a particular month. This > may be a proper way to monitor sales. > > Personally, adjusting for the number of selling days is ok, as long as one > considers both the adjusted number and unadjusted numbers. > > Jeff OK, I think I have it figured out why there is a difference in selling days. Apparently it is some sort of industry convention. There is a list of selling days at http://subscribers.wardsauto.com/refcenter/SellingDays/ . The chart lists the number of selling days and the date that sales are reported for 2008, 2009, and 1010. For October 2009 the reporting date was November 3. The reporting date for November 2009 was December 1. I don't see the logic in the system, but I guess there must be one. And at any rate, it does appear to be an industry standard (but still confusing). Ed |