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This study aims to analyze purchasing decision-making in e-commerce using the AHP-TOPSIS method based on discount and free shipping criteria. The alternatives used in this study are Lazada, TikTok Shop, and Shopee. The AHP method is used to determine the criteria weights, while the TOPSIS method is used to rank the best alternatives. The results show that free shipping has the highest weight of 0.504, while discounts have a weight of 0.496. The ranking results show that TikTok Shop ranks first with a preference value of 0.600, followed by Shopee with 0.526 and Lazada with 0.213. Therefore, TikTok Shop is the best alternative based on discount and free shipping criteria.
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Agesha et al. (2026) studied this question.
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