Laboratory of Pervasive Computing, Tampere University of Technology, Finland.
A-Clinic Foundation, Finland.
Drug Alcohol Depend. 2017 Sep 1;178:201-207. doi: 10.1016/j.drugalcdep.2017.05.018. Epub 2017 Jun 21.
This 11-month study analyzed illicit drug sales on the anonymous Tor network, with a focus on investigating whether a seller's reputation and capacity increased daily drug sales.
The data were gathered from Silkkitie, the Finnish version of the Silk Road, by web crawling the site on a daily basis from (November 2014 to September 2015). The data include information on sellers (n=260) and products (n=3823).
The measurements include the sellers' reputation, the sale amounts (in euros), the number of available products and the types of drugs sold. The sellers' capacity was measured using their full sales potential (in euros). Fixed-effects regression models were used to estimate the effects of sellers' reputation and capacity; these models were adjusted for the types of drugs sold.
Overall, illicit drug sales totalled over 2 million euros during the study, but many products were not sold at all, and sellers were active for only a short time on average (mean=62.8days). Among the products sold, stimulants were most widely purchased, followed by cannabis, MDMA, and psychedelics. A seller's reputation and capacity were both associated with drug sales.
The Tor network has enabled a transformation in drug sales. Due to the network's anonymity, the seller's reputation and capacity both have an impact on sales.
本为期 11 个月的研究分析了匿名 Tor 网络上的非法毒品销售情况，重点调查了卖家的声誉和能力是否会每日增加毒品销售额。
数据是通过每天从网站上抓取（2014 年 11 月至 2015 年 9 月）芬兰版丝绸之路 Silkkitie 来收集的。数据包括有关卖家（n=260）和产品（n=3823）的信息。
测量包括卖家的声誉、销售金额（欧元）、可用产品数量和销售的毒品类型。使用卖家的全部销售潜力（欧元）来衡量卖家的能力。使用固定效应回归模型来估计卖家声誉和能力的影响；这些模型针对销售的毒品类型进行了调整。
总体而言，在研究期间，非法毒品销售总额超过 200 万欧元，但许多产品根本没有销售，卖家的平均活跃时间很短（平均=62.8 天）。在所销售的产品中，兴奋剂的购买最为广泛，其次是大麻、MDMA 和迷幻剂。卖家的声誉和能力都与毒品销售有关。
Tor 网络使毒品销售发生了转变。由于网络的匿名性，卖家的声誉和能力都对销售产生了影响。
