Originally posted by KidRock
Economics: The social science that studies the production, distribution, and consumption of goods and services.Murdoch's business deals with the production, distribution and consumption of goods and services..and from the billions of dollars he has made I would say he knows this well. An authority is just someone who is an expert in the subject. I dont know anybody who say say Murdoch is not an expert in the things above.
And on your point of bias. Would former Fed Chairman Paul Volcker be an authority if he came out and said "McCains plan sucks"?
You commit the logical fallacy of confusing correlation with causation; that because Murdoch is wealthy that he must know the inner workings of the economy and is an expert on it. The two don't necessarily go hand in hand.
Again, you're free to present him as authoritative if you wish, but then you lose the right to complain when someone brings up any wealthy person who has a predetermined bias towards the liberal agenda, your logic says that all wealthy people are authoritative just because they're wealthy regardless of bias.
I don't know who Paul Volcker is. If he is bias, then no he isn't a valid authority. Bias outweighs knowledge because bias makes on more likely to misrepresent the facts to be advantageous to whoever they're bias towards.