I have problems thinking Ledger is an Economist.... or maybe she is that, but has no knowledge of Accounting.

Essentially the product for sale has to move from field, or store to the retailer having been packaged etc in most instances. The supply chain is one thing for products where crops are close to Market, but they aren't and transport a huge element. 

The 'Big Four' Retailers make operating profits of on average 2-4%, much less than say the UK's 8%. 

The Headline is rubbish!

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