By Andria Cheng

NEW YORK (Dow Jones) -- With retailers reeling from the global recession, initiatives such as Wal-Mart Stores Inc.'s Great Value private-label expansion or Macy's Inc.'s "My Macy's" will likely be adopted by even more retailers, as industry players fight for the ever-more-discerning consumer's money.

Retailers also will likely downsize their packaging, store size and even their growth expectations, as part of a long-term trend to emerge from the economic downturn that's changed consumer behavior, according to a joint report of consulting firms PricewaterhouseCoopers and Retail Forward.

Retail sales, excluding automobile and gasoline, are expected to be flat this year before rebounding in 2010. That compared against a 1.8% increase in 2008 and below the 5% average inflation-adjusted pace in the decade prior to 2008, the report said.

In response to rising job losses and the declining stock and housing markets, three quarters of consumers have significantly or somewhat changed their shopping behavior -- trimming purchases, increasingly seeking deals and coupons, and trading down to cheaper store brands, according to the Retail Forward survey of 4,000 U.S. primary household shoppers.

That has forced retailers to change their game plan, the report said.

"The economic shocks will precipitate the end of many cycles that shaped the industry during the first part of the decade," the report said. "The relative winners on the retail battlefield over the past few months are already proving the relevance of the emerging trends."

Wal-Mart this month reintroduced its Great Value brand, first unveiled in 1993, with expansion into 80 new products, from organic cage-free eggs to thin-crust pizza. Grocery has been a key traffic driver for Wal-Mart as consumers lower their discretionary spending, analysts have said.

In addition to Wal-Mart (WMT), Best Buy Co. (BBY) and Kohl's Corp. (KSS) have also expanded their private label offerings, as "trading down to private brands is among the most prevalent changes in shopping behavior," the report said.

Analysts said Wal-Mart's relaunch of its Great Value private-label grocery line is expected to help it bolster profit, with the products proving more profitable for the retailer than national labels.

As consumer-spending cutbacks lead to less room for retail expansion, more stores also will follow the lead of retailers such as Macy's (M), which is rolling out nationwide its My Macy's initiative to tailor its merchandise to specific customer segments and local markets instead of relying on adding stores to spur growth, the report said.

Among other trends, retailers are using more limited editions and smaller runs to excite shoppers and sell more products at full price.

As more stores close amid an industry consolidation, more exclusive partnerships also will be seen. For instance, People's Liberation denim brand inked a deal with teen retailer Charlotte Russe (CHIC) to sell its line of apparel exclusively at the clothing chain, the report said.

Consumers' increased access to information through smart phones and other devices also will change the retail landscape, as shoppers rely increasingly on product ratings and reviews. Meanwhile, more retailers also are adding complementary and even unrelated categories in their stores to become one-stop shops, the report said.

With last year's increase in gasoline prices, retailers such as Wal-Mart that offered consumers the ability to complete their purchases in one stop have benefited as consumers curtailed driving.