The earnings crunch is on. Among the many companies scheduled to report quarterly results this week are such so-called bellwether stocks as Amazon.com Inc. (NASDAQ: AMZN), Caterpillar Inc. (NYSE: CAT), Coca-Cola Co. (NYSE: KO), DuPont (NYSE: DD), and United Parcel Service Inc. (NYSE: UPS), all of which analysts surveyed by Thomson Reuters expect to report lower earnings for the recent quarter. Altria Group Inc. (NYSE: MO), McDonald's Corp. (NYSE: MCD), and Raytheon Co. (NYSE: RTN), on the other hand, are expected to post marginal earnings growth.

Among all the negative economic data that came out last week was a positive surprise: retail sales were higher in January. A fluke or a glimmer at the end of the tunnel? That may depend on whether we see any positive surprises arising from items on this week's economic calendar:

• Consumer Analyst Group of New York Conference: Monday through Friday
• NY Empire Manufacturing Index (Feb. 2009): Tuesday, 8:30 AM
• NAHB Housing Market Index (Feb. 2009): Tuesday, 1:00 PM
• Fed's Bullard speaks before National Association of Business Economists: Tuesday, 1:00 PM
• Housing starts (Jan. 2009): Wednesday, 8:30 AM
• Fed's Pianalto speaks before Commercial Developers Power Breakfast: Wednesday, 9:00 AM
• Industrial production (Jan. 2009): Wednesday, 9:15 AM
• Fed's Bernanke speaks before National Press Club Luncheon: Wednesday, 12:30 PM

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

• Axsys Technologies Inc. (NASDAQ: AXYS) beat estimates for the fourth quarter and raised its guidance.
• Deli Inc. (NASDAQ: DELL) missed expectations for the fourth quarter despite its move into retail outlets.
• Goldman Sachs Group Inc. (NYSE: GS) is lowering expectations for the quarter just ended.
• Home Depot Inc. (NYSE: HD) missed expectations, dragged down by the housing slump.
• Lowe's Cos. Inc. (NYSE: LOW) beat low expectations though profit fell due to the housing slump.
• Nordstrom Inc. (NYSE: JWN) beat estimates, though earnings and revenue fell.
• Office Depot Inc. (NYSE: ODP) fourth-quarter profits sank, falling short of Wall Street expectations.
• RadioShack Corp. (NYSE: RSH) beat expectations as lower operating costs offset lower same-store sales.
• Sears Holdings Corp. (NASDAQ: SHLD) missed estimates as both earnings and revenue fell.
• Sprint Nextel Corp. (NYSE: S) posted a fourth-quarter loss on acquistions-related write-downs.
• Toll Brothers Inc. (NYSE: TOL) swung to a $96 million loss, another victim of the housing slump.

Also, analysts predict that bank losses will be the highest in 20 years. See Jim Cramer's take on Lowe's and Nordstrom results. Timothy Sykes recommends investors not become starstruck by superstar companies such as Apple Inc. (NASDAQ: AAPL) and Google Inc. (NASDAQ: GOOG).

Upcoming results to watch for include Staples Inc. (NASDAQ: SPLS), Costco Wholesale (NASDAQ: COST), and Blockbuster Inc. (NYSE: BBI).

Visit AOL Money & Finance for more earnings coverage.