NEW YORK (Reuters) - ComScore Inc
The forecast echoes that of Forrester Research which estimated that e-commerce will grow 15 percent, fueled by bargain hunters using the Internet to look for deals, retailers offering shoppers more ways to pick up orders, and consumers using mobile devices more as they shop.
Last year e-commerce sales rose 14 percent.
Success online is crucial for retailers to do well this holiday season, when they typically get 30 percent of annual sales, all the more so given how much faster e-commerce is growing than sales in stores.
The National Retail Federation has said it expects overall retail sales to rise 3.9 percent to $602.1 billion.
In a bid to compete with online retail giant Amazon.com
Many chains, like Wal-Mart Stores Inc
ComScore said Cyber Monday, traditionally the busiest online shopping day that follows the long Thanksgiving weekend, should see total sales surpass $2 billion.
(Reporting by Phil Wahba in New York; Editing by Phil Berlowitz)