9 matches were found
- Thursday, March 30, 2000 #3360
Please explain the use of BDI/ cdi and MOI in relation to the media strategy, whether media activity should be aggresive, maintenance etc.
- The Media Guru Answers(Friday, March 31, 2000 ):
Indices like these, (though "MOI" is not familiar, possibly Market Opportunity Index?) are used to compare geographic markets media weight/spending levels. Typically, one, geographically flexible, element of the media plan, such as spot TV is adjusted up or down in DMAs or regions, to give each area the appropriate activity based on relative sales, or sales potential index. It's not exactly a question of "aggressive" versus "maintenance."
Click here to see past Guru comment on bdi and CDI
- Sunday, January 16, 2000 #3122
Dear Sir / Madam,
The question that I have is related to media weight setting.
q1) Often in the past we have used the market prioritisation technique in bdi / CDI. Having done this we simply super impose the market dynamics to arrive at a market task.
Now the question is can we make the bdi / cdi numbers talk harder. Is there a relation between bdi and the frequency required.
- The Media Guru Answers(Wednesday, January 19, 2000 ):
bdi and cdi are typically used to establish the effort which will be made in each market in relation to the other markets. These indices reflect a market's contribution to national sales versus its portion of national population.
The application of the index typically addresses allocation of media dollars or impressions. It could just as easily be used to set average frequency or effective frequency goals, but since frequency grows in a non-linear fashion - the growth rate accelerates as GRPs accumulate, it is simply a more complicated basis for media application.
- Wednesday, October 27, 1999 #2908
Doing a BDI/cdi on an entire population makes sense since in some cases it could point you towards a group of the population whi is not your target audience but is purchasing your product in large volumes.This could be true of categories like FMCG's. In the case of categories like white goods especially at the premium end - like premium end cars - wouldn't the given target audience be filtered out by set of demographics and psychographics and therefore a BDI/cdi done in that case should be on the target audience rather than total population. Can I have your views on this issue ?
- The Media Guru Answers(Wednesday, October 27, 1999 ):
As the Guru uses the terms and techniques, BDI/cdi are meant to evaluate and prioritize geographic markets.
Whether the demographic target has been correctly identified or not, using total market populations will work to evaluate geographic markets.
Premium goods or package goods equally have their specific targets. While narrower population groups may account for more of premium goods sales, nevertheless accounting for all sales has its benefits.
- Friday, September 24, 1999 #2823
As a client not well versed in media and media
measurement tools I was asked some questions that I
don't quite know the meaning of or the terminoligy
in how it is used. These terms are specific and deal
with planning strategies. Please help where you can.
-A & U or segmentation studies (audience probably) A & U ?
-What does RDI, RPI stand for/mean (indexes for investment strategies?)
Thank you, Guru.
- The Media Guru Answers(Saturday, September 25, 1999 ):
These are all consumer behavior measurements, not media measurements, but they are used in forming media strategies.
A&U is Attitude and Usage study (or sometimes Awareness and Usage study). This is a survey of consumers concerning their knowledge of the product and/or the advertising, feelings about the product and category and ways and amounts of usage. It can be used to define and segment the target.
- Volumetric analysis goes beyond defining who is using your product and segments users according to the quantity (volume) consumed. The classic example is: Men 18-34 are 20% of beer drinkers, but consume 80% of all beer.
- RDI and RPI are not entirely familiar to the Guru. The _DI and _PI forms in these contexts are usually (something Development Index and (something) Potential Index. The "somethings" are most typically "Brand" and "Category." Brand Potential Index can be equivalent to Category DevelopmentIndex.
bdi is a comparison of the sales in a specific market versus the markets portion of national sales. So, a market where 3% of all product sales occur but only 2% of the target population lives has a bdi of 150 (3 ÷ 2). cdi is calculated the same way, but using the entire product category's sales.
- Econometric modeling is a broad, general term, taking into account all the above and other measures of consumer behavior.
- Monday, February 15, 1999 #2335
wanted to find out what is the role of bdi and cdi in market prioritisation. How do you arrive at bdi and cdi and is there a point of saturation on cdi
- The Media Guru Answers(Monday, February 15, 1999 ):
bdi is Brand Development Index
cdi is Category Development Index.
In either case the index is calculated by dividing the percentage of sales in a local market by the percentage of the population which is in that market. It is done based on a Brand's sales or the whole category's sales respectively. This index then reflects the per capita sales in the market and is used to indicate sales potential.
Some marketing philosophies allocate advertising dollars or advertising impressions delivery according to such an index.
Since the usage ia an index, "saturation" would not be a factor unless sales were bizarrely skewed geographically. For instance, a new product in test market might have 90% of sales in a market accounting ofr just 1% of the population. In such as case it would be ridiculous to use bdi to determine allocation.
The Guru has discussed this frequently.
Click here to see past Guru responses on bdi and CDI
- Thursday, January 07, 1999 #2251
I am a media planner from India and would like to clarify the method of calculating bdi & cdi for a country like ours where population dispersion is not uniform across the SocioEconomic Class (the parameter used for setting the target audience. Iit is a cross tab of education and profession of the chief wage earner of the household) in different markets
In such a situation is it advisable to use the total population of the country rather than Target Group Population.
Sissors and Bumba advise using the Total Population but i guess thats more applicable to developed countries where TG dispersions are uniform
Thanks a lot
- The Media Guru Answers(Thursday, January 07, 1999 ):
The concept of bdi and cdi is based on different sales rates (units or Dollars of sales ratio to units of population) within specific marketing regions.
Logically, the same demographic should be used locally and nationally. If each person in demographic "X" consumes 10 units of "y" nationally, than the national rate is Y ÷ X.
In each market, the demographic population is also compared to consumption and a similar ratio calculated.
Then the market's ratio ÷ the national ratio becomes the bdi or CDI, depending on whether Brand or Category data, respectively, was used. If the total national population is the base but you use the target pop. in markets, then each market's cdi is inflated by the same percentage. That is, if the target was selected because its members, nationally, have a 150 index of consumption of the product, then each market's bdi would be inflated by 50% if the National population was used as the bdi base.
On the other hand, there may be not difference in effect, because in either case, whatever the national base used, the realtionship between markets will be the same.
However, since it is really sales, not people with which you are dealing, it is cleaner to use total, not target population in each case. Otherwise you assume that in every market, target members consume the same, which obviates the bdi excercise. Suppose someone other than the target is a major consumer in some geographic are, why mask that in planning market allocation? After all the whole idea of BDI/cdi is based on the concept that a product's consumers are not evenly distributed demographically, even in countries where some demographics may be.
- Friday, December 04, 1998 #2200
Where can I find BDI/cdi info for the technology sector?
- The Media Guru Answers(Friday, December 04, 1998 ):
bdi (Brand Development Index), which is based on brand sales, is most likely to be proprietary and not publicly available.
Category Development may be inferred from data in such sources as SRDS' Lifestyle Market Analyst or in category sales data sets used with geodemographic mapping systems like those of CLARITAS.
- Thursday, July 09, 1998 #1941
How do you define Selectivity of media vehicle ? How do you measure it ? Therefore how do you calculate a Press Selectivity Index ? Is it similar in concept to a brand development Index or a category development Index (bdi & CDI) ?
- The Media Guru Answers(Thursday, July 09, 1998 ):
The Guru defines "selectivity" as narrowness of targeting audience. For example, if your target is women 18-49 and there is a magazine, all of whose audience is women 18-49, than that magazine is highly selective. A magazine with 80% w18-49 and 20% W50+ is less selective.
Standard print audience measures such as the U.S.' Simmons, MRI or U.K.'s TGI provide these data.
Logically, a selectivity index would compare the incidence of a given demographic group within the population to its incidence in the audience of the medium, with the population incidence set as equal to 100. Thus, if women 18-49 are 50% of the population but 80% of the media audience, the selectivity index would be 80 divided by 50 or 160 (the decimal is moved 2 places to the right for an index). In this sense it is similar to bdi which indexes product purchase in a market to product purchase nationwide, in terms of percent used in the market compared to percent of national population in the market.
- Thursday, January 15, 1998 #1487
Can you explain what "mapping software" is? And, do you know about a software package called "Clarisoft" or something like that?
- The Media Guru Answers(Thursday, January 15, 1998 ):
There are probably several meanings of the term, created by
different software makers.
In a media context, the term usually refers to software
which can draw a map colored or shaded to reflect
demographic, media or product usage behavior.
For example a DMA may be drawn, and colored to indicate
which zip codes have the highest circulation of the local
newspaper, a national magazine, or TV show audience. It is
common to separate zips or other sub areas into quintiles
or tertiles, etc.
The entire US may be drawn to show sales levels of a
product or bdi by DMA.
A three mile trading circle around a store location can be
created to show media income of census tracts, for planning
the distribution of a circular.
Claritas PRIZM, Donnelly's Cluster Plus, and other
segmentation systems are typically used to analyze or
model the data. There has been considerable consolidation
of software vendors in this field in the last few years.
Compass, Conquest, and Strategic Mapping have all folded