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Pick Your Poison: Pricing and Inventories at Unlicensed Online Pharmacies
Nektarios Leontiadis, Tyler Moore, Nicolas Christin

Citation
Nektarios Leontiadis, Tyler Moore, Nicolas Christin. "Pick Your Poison: Pricing and Inventories at Unlicensed Online Pharmacies". Proceedings ACM Electronic Commerce 2013, 621-638, June, 2013.

Abstract
Electronic commerce has transformed how goods are supplied to consumers, but has also exposed weaknesses in supply regulations of certain goods, such as alcohol, weapons or prescription drugs. While licensed pharmacies have tread carefully with online sales, many enterprising operators have been selling pharmaceuticals without a license for years. Despite facing considerable adversity, unlicensed online pharmacies have managed not only to survive, but even to generate considerable revenue. In this paper, we attempt 1) to understand the economic reasons for their success, while facing stiff competition from both legal and illegal alternatives, and 2) to identify characteristics of their supply chains that could be used to disrupt illicit sales. We collected six months’ worth of inventory and pricing data from 265 online pharmacies that advertise through search- engine poisoning. We compare this to data from Silk Road, an anonymous online marketplace, and from familymeds.com, a licensed online pharmacy. We discover that instead of directly competing with licensed pharmacies, unlicensed pharmacies often sell drugs that licensed pharmacies do not or cannot sell. Furthermore, unlicensed pharmacies are not only cheaper overall, but they also offer volume discounts. Clustering analysis of inventories reveals that only a few suppliers appear to cater for most unlicensed pharmacies, which suggests that cutting them off could disrupt unlicensed sales. Cross-validating our data with inventories from a random sample of 265 different pharmacies deemed “not recommended” by the National Association of Boards of Pharmacy shows that our results are consistent across different types of questionable vendors.

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  • HTML
    Nektarios Leontiadis, Tyler Moore, Nicolas Christin. <a
    href="http://www.truststc.org/pubs/908.html"
    >Pick Your Poison: Pricing and Inventories at Unlicensed
    Online Pharmacies</a>, Proceedings ACM Electronic
    Commerce 2013, 621-638, June, 2013.
  • Plain text
    Nektarios Leontiadis, Tyler Moore, Nicolas Christin.
    "Pick Your Poison: Pricing and Inventories at
    Unlicensed Online Pharmacies". Proceedings ACM
    Electronic Commerce 2013, 621-638, June, 2013.
  • BibTeX
    @inproceedings{LeontiadisMooreChristin13_PickYourPoisonPricingInventoriesAtUnlicensedOnlinePharmacies,
        author = {Nektarios Leontiadis and Tyler Moore and Nicolas
                  Christin},
        title = {Pick Your Poison: Pricing and Inventories at
                  Unlicensed Online Pharmacies},
        booktitle = {Proceedings ACM Electronic Commerce 2013},
        pages = {621-638},
        month = {June},
        year = {2013},
        abstract = {Electronic commerce has transformed how goods are
                  supplied to consumers, but has also exposed
                  weaknesses in supply regulations of certain goods,
                  such as alcohol, weapons or prescription drugs.
                  While licensed pharmacies have tread carefully
                  with online sales, many enterprising operators
                  have been selling pharmaceuticals without a
                  license for years. Despite facing considerable
                  adversity, unlicensed online pharmacies have
                  managed not only to survive, but even to generate
                  considerable revenue. In this paper, we attempt 1)
                  to understand the economic reasons for their
                  success, while facing stiff competition from both
                  legal and illegal alternatives, and 2) to identify
                  characteristics of their supply chains that could
                  be used to disrupt illicit sales. We collected six
                  monthsâ worth of inventory and pricing data from
                  265 online pharmacies that advertise through
                  search- engine poisoning. We compare this to data
                  from Silk Road, an anonymous online marketplace,
                  and from familymeds.com, a licensed online
                  pharmacy. We discover that instead of directly
                  competing with licensed pharmacies, unlicensed
                  pharmacies often sell drugs that licensed
                  pharmacies do not or cannot sell. Furthermore,
                  unlicensed pharmacies are not only cheaper
                  overall, but they also offer volume discounts.
                  Clustering analysis of inventories reveals that
                  only a few suppliers appear to cater for most
                  unlicensed pharmacies, which suggests that cutting
                  them off could disrupt unlicensed sales.
                  Cross-validating our data with inventories from a
                  random sample of 265 different pharmacies deemed
                  ânot recommendedâ by the National Association
                  of Boards of Pharmacy shows that our results are
                  consistent across different types of questionable
                  vendors.},
        URL = {http://www.truststc.org/pubs/908.html}
    }
    

Posted by Nicolas Christin on 8 Sep 2013.
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