Even before your resume gets to the hiring managers, it gets screened by the HR folks.
I'm guessing the hiring manager would not react negatively to the extra degree (they'd probably react positively) but the HR person would react negatively.
HR folks are trained to look for good “matches”. Their definition of a match includes qualified, but not overqualified:
If you are overqualified, then in the mind of an HR person, it’s more likely that one or more of the following apply:
[ul]
[li]you couldn’t find any jobs commensurate with your experience, so you’re
desperate and applying for a job you don’t really want.[/li]
[li]Desperate implication 1: what’s wrong with you that you couldn’t find a job meeting your qualifications[/li]
[li]Desperate implication 2: you might move along as soon as you find that better job meeting your qualifications[/li]
[li]You might grow bored in a job that doesn’t fully utilize your education and later move on.[/li]
[li]you may want more money as a result of your higher qualifications. That means after all the work to set up an interview, even if things go great and the hiring manager wants you, it's more likely you won't accept the offer. That's a massive waste of time on their part.[/li]
[/ul]
HR has a simple mindset to fit the candidate to the job like fitting a peg into a hole. With so many resumes why should they choose the one that doesn't fit?
Another aspect. HR has 500 resumes and is looking for any way to whittle the number down to make the selection process easier. You gave them a convenient excuse to do just that.
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(2B)+(2B)' ?