The quest for evidence on the economic effects of copyright law
探讨了英国政府要求以证据为基础制定版权政策时，现有数据是否足以支撑政策决策，并分析了经济学家在提供所需证据时面临的困难。
The requirement by the UK government for evidence-based policy has recently been applied to copyright law in the context of I. Hargreaves's report, Digital Opportunity: Review of Intellectual Property and Growth (Newport, Intellectual Property Office, 2011). In this article, I focus on data that have been used to make the case for copyright with government, but it is argued that this does not produce the evidence that is needed for policy purposes. The problem facing economists in providing such evidence is discussed in detail in connection with Hargreaves' proposal for a digital copyright exchange. Copyright , Oxford University Press.