Match Type cause different MIN BID?

Quality Score question!

[Blan]

Hi,

[adwords.google.com ]
Is there any benefit to adding the same keyword to my account three times, each with a different match type?
There's no definitive Quality Score benefit to be gained from adding the same keyword multiple times with different match types to your account.

Are the above document still correct?

If so, why did I see different MIN BID based on the same keywords with different groups?

My case as below:

The first "KW-A"
Group-A KW-A 0.03
Group-B "kw-A" 0.03
Group-C [KW-A] 0.02
Group-C "KW-A" 0.02

Another one "KW-B"
Group-D KW-B 0.04
Group-E "KW-B" 0.04
Group-F [KW-B] 0.04
Group-F "KW-B" 0.03
It's not my fanciness, it really happened in my accounts.

Any one here met the same instance?

[edited by: Blan at 3:10 pm (utc) on July 13, 2008]

[toast the most]

I remember reading, although not too sure where, that the quality score of a keyword is based on the exact match of that keyword - which explains why QS of the same KW with different matchtypes should always be the same (as per the google answer above). No idea why you're seeing these results!

[Blan]

:)

Thanks for response!
I just want to confirm if the above document still authoritative.

[PPC Consultant]

yes and no. QS will change based on match type. Heck, it will change based on any changes you make.

You can have 3 different types of match types only if:
1-you have exhausted the negative KWs for the broad and phrase matches
2-after you completed #1, you have proven based on historical data that your ROI on exact is better than phrase, and broad match has the lowest conversion in the mix. In this scenario, exact might worth .60, phrase .50, and broad .40. If your bids are not in this descending order by match type, then the looser match type will trump the next one up.
3- this is worth the time and effort for your top 50 KWs...

[edited by: PPC_Consultant at 5:13 pm (utc) on July 17, 2008]