"Lawrence D'Oliveiro" <_zealand> wrote in message
news:em09hh$f9e$...
> In message <45839512$>, El Chippy wrote:
>
>> "Lawrence D'Oliveiro" <_zealand> wrote in message
>> news:em02hc$2l4$...
>>> In message <4583856d$>, El Chippy wrote:
>>>
>>>> "Lawrence D'Oliveiro" <_zealand> wrote in
>>>> message news:elr6kr$ble$...
>>>>
>>>>> That's Forrester, desperately trying to spin their own figures to take
>>>>> the pressure off them from the panicking investors. If a 58% drop over
>>>>> 6 months isn't a "trend", what the hell is it?
>>>>
>>>> A large seasonal variance amongst a very small sample size?
>>>
>>> 6 months is a pretty long "season", isn't it?
>>
>> You mean a pretty long off season i assume?
>>
>> And no, it isn't. And what relevance can be pulled from a sample size of
>> 161 buyers on a service the size of iTunes?
>
> <http://www.forrester.com/Research/Document/Excerpt/0,7211,40858,00.html>:
>
> Forrester analyzed nearly 2 million credit and debit card transactions
> for the 27-month period from April 2004 through June 2006.
2 million credit and debit card transactions != 2 million itunes
transactions
from what i can make out it is ~2700 cards, over 27 months = roughly 27
purchases per month per card. Of which there were 2791 iTunes purchases.
from
http://blogs.forrester.com/devicesme....html#comments
begin quote
"Remy Fiorentino from Forrester here, I helped Josh with the analysis for
this report.
TIMK - The 65% decline in revenue was between January 2006 and June 2006.
This decline is statistically significant, but is still based on a sample of
181 iTunes buyers. When we compare this to 2005 data, we see that revenues
declined 39% from January 2005 to June 2005. Is 2006 worse than 2005? It's
hard to say. However, the January 2005 revenue was a bit higher than the
January 2006 revenue, and the June 2005 revenue was more than twice the June
2006 revenue. Our data suggests that the iTunes growth has slowed, though
neither Josh nor I would say sales have "collapsed".
end quote.
further down that page:
Methodology
The data for this report came from Forrester's Ultimate Consumer Panel
(UCP), a nationally representative panel of more than 7,000 US online
consumers. The UCP passively and continuously tracks statement and
transaction activity for credit cards and debit cards used by panel
households. To derive the iTunes data above, Forrester analyzed nearly 2
million credit card and debit card transactions for the 27-month period from
April 2004 to June 2006. Transactional data is based on 2,791 iTunes
purchases from this period.
Data for iTunes households was aggregated over the past 12 months, from July
2005 to June 2006, and was restricted to include only the 5,580 households
that were active members of our panel for all 12 months. The sample size for
iTunes buyers is 181 households.
whoops it was 181, not 161, my bad.
I wonder if forresters UCP is as representative as the tv ratings system
here in nz? 5580 households in a nation the size of america isn't a huge
sample. How many 13-25yos are going to bother with this market research
program for 12 months? wouldn't they be the most active in digital music
downloads?