Quality safeguards and regulation of online pharmacies
用计量证据证实在线药品销售分为质量差异明显的两个市场，并识别出驱动质量与质量保障的因素，支持对在线药店进行许可监管。
Using econometric evidence, this article confirms that distribution of medicines online is split into two market segments of very diverse quality, and identifies the factors that drive quality and quality assurance in this activity. Unlike fraudulent, 'rogue,' websites, which offer scant guarantees and usually sell just a few medicines without prescription, online pharmacies offering insurance coverage and linked to conventional pharmacies typically sell a whole range of drugs, require third-party medical prescriptions and provide abundant information to patients. It is shown that, where online pharmacies are allowed to act legally, market forces enhance quality, as private insurers require professional standards, and specialized third parties make a business of certifying them. Furthermore, older online pharmacies and those running conventional operations offer higher quality, probably because of reputational investments. Overall, this evidence supports licensing online pharmacies, especially considering that prohibiting them is ineffective against fraudulent sites.