What do they mean off price chains and bargain chains in this quote?

[Stephanie C]

WMarts lopsided victory-and the strength of off price chains like TJ Maxx and Ross Dress for Less-suggested that jittery consumers, trying to cut back on spending, favored bargain chains over full price stores during the 2007 holiday season.


What does WalMart fall under?
What are higher end stores?
"....past reached for pricier products at higher end stores"

taken from Retailers say December a downer in my local paper

[alanpks4]

Wal mart is considered a department store, but places like tj maxx sell stuff less than places like Macy's and for that reason have been given the name "off price" chains or retailers.

macy's
Bloomingdales
Norstuim
are some higher end stores.

Bargin chains are basically the same as off price.