This is about the contractual terms that apply between Ica companies and Ica retailers, which according to the suspicions can be classified as "competition-restricting collaborations".
The investigation also includes pricing, design of stores and purchasing cooperation.
"The Competition Authority will investigate whether Ica's collaborations restrict competition, and whether efficiency considerations can offset any competition restrictions", the newspaper reports with reference to the authority.
Ica states that they welcome the review and cooperate fully with the Competition Authority.
"We feel confident that the contractual terms that regulate the relationship between Ica and Ica retailers fully meet the requirements of the Competition Act", writes Ica Sweden's press officer Jenny Gerdes in an email to the newspaper.
Ica has a market share of around 50 percent.
