The 2009 equity market recovery has led to an increase in Q ratios for the world's largest retailers. What does this mean? They're using their tangible assets effectively and have demonstrated the strength of intangible factors, such as brand and operational efficiency, to create shareholder value.

"Q" is the ratio of a public company's market capitalization to the market value of its tangible assets. So, a Q ratio of above one means that investors value the company's non-tangible assets -- e.g., brand, differentiation, innovation, customer experience and customer loyalty -- and see these factors as reasons to pay a higher price per share. A company with a Q ratio of below one can't generate a sufficient return on its physical assets. According to Deloitte, this could create an arbitrage opportunity, as it may be ripe for an acquisition.

Here are some highlights from this past week's earnings coverage from BloggingStocks:

• Accenture Ltd. (NYSE: ACN) beat earnings expectations but revenue was hurt by currency effects.
• Bed Bath & Beyond Inc. (NASDAQ: BBBY) strong Q1 results beat estimates but same-store sales fell.
• CKE Restaurants Inc. (NYSE: CKR) lower Q1 earnings and strong sales both topped expectations.
• ConAgra Foods Inc. (NYSE: CAG) higher Q4 earnings were in line with expectations, and shares slipped.
• Darden Restaurants Inc. (NYSE: DRI) Q4 results were higher, but it warned of continuing challenges.
• Hennes & Mauritz (OTC: HMRZF) reported strong Q2 numbers, though same-stores sales slipped.