How can Willy Loman be described as a "tragic hero" in Arthur Miller's "Death of a Salesman?"

In
discussing the character of Willy Loman in 's "," theis overwhelming, the
"hero" aspect less clear.

Willy Loman is one of the most tragic
characters in modern theater history.  He has lived his life in the thankless and not
particularly prosperous role of a traveling salesman.  He has clearly not been a financial
success, as his family resides in a low-income house and, visually, the appearances of Willy and
his wife, Linda, clearly indicates a lower-middle class lifestyle.  As he approaches the
twilight of his life, he has little to...