professional economists.
I believe sir that this is a slang term, and these people are actually called "Professional BullShit Artists"
Look it up, its in the dictionary
http://dictionary.reference.com/browse/bullshit+artistbullshit artist definition
and bullshitter
n.
a person expert at lies, deception, and hype. (See also bullshit. Usually objectionable.)
The keyword here is HYPE
o.0