ALDI fights with Wal-Mart and Trader Joe's

ALDI, a short of ALbrecht (Founder, Germany) and DIscount is a grocery chain with 8000 stores worldwide.

Groceries at Aldi are "shockingly cheaper" than those at Wal-Mart, or Trader Joe's. A few smart strategies have led to this success: Private Labels, No Frills Design, Insane Efficiency, and Customers at Work. 

Are these strategies universal?

http://www.businessinsider.com/why-aldi-is-so-cheap-2015-4?utm_content=b...

Can Aldi compete with the best supermarkets in America?

http://www.businessinsider.com/best-supermarkets-in-america-ranking-2015...