, led by Chief Executive Officer Ryan Cohen, is considering withdrawing its $56 billion bid for eBay Inc. Cohen is considering proposing a partnership or joint venture that would enable eBay to leverage GameStop’s roughly 1,600 US retail locations, the people said, asking not to be identified because the matter is private. That could allow both to increase market share in high-margin categories such as trading cards and collectibles, the people said. GameStop, as one of eBay’s largest shareholders, would seek representation on eBay’s board as part of any partnership, they added. Since its offer in May, GameStop’s stock has fallen by almost a third while eBay’s has climbed about 3.