Most online shoppers expect to make at least one-fourth of their holiday purchases on Amazon this season, according to recent research from Astound Commerce.

The report was based on data from a survey conducted in September 2017 among 1,000 consumers in the United States who shop online at least four times a year and who spend $250 or more annually online.

Some 70% of online shoppers surveyed expect to make a quarter or more of their holiday purchases on Amazon; 40% of respondents intend to make half or more of their purchases on Amazon.

Amazon is the preferred online retailer across a range of different circumstances, including when consumers are looking for the lowest price, when they want products quickly, and when they want a personalized experience.

Consumers say price is the primary reason they would consider not purchasing at Amazon: Two-thirds of holiday shoppers would consider buying a product on another site if it were cheaper there.

Holiday shoppers are most likely to be driven to retailer websites by promotions (52% say they would be influenced), social media advertising (45%), and television/radio commercials (40%).

Some 55% of Millennials say social media ads would prompt them to visit a retailer's website.

Two-thirds of holiday shoppers say they would visit a physical retail store if they wanted to touch and feel a product.

About the research: The report was based on data from a survey conducted in September 2017 among 1,000 consumers in the United States who shop online at least four times a year and who spend $250 or more annually online.