Authority

Authority

Is there an author of the document or web page?  If yes, who is the author?
David Leonhardt 

Are his/her affiliations and qualifications given?
If yes, list them.

After reading his bio, it is clear that the author of this article has a lot of experience with this topic. He is has been recognized nationally for his achievements and writings about economics, making him a very reliable source. Leonhadt is a good authority on this topic. However, even though he may know what he is talking about, this is still an opinion article. 

 The New York Times 

Is contact information provided (address, phone
number, email)?

E-mail: leonhardt@nytimes.com

On Twitter:@DLeonhardt