Occupational licensing affects more than one in five workers in the US, but research is often limited by the high cost of obtaining regulatory data. We highlight existing and forthcoming databases of regulatory information. We also summarize the papers included in this volume and discuss their contribution to the literature.

中文翻译：

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职业执照：改善对法规信息的访问

在美国，职业许可证影响到五分之一以上的工人，但是研究通常受到获取监管数据的高昂费用的限制。我们重点介绍了现有和即将发布的法规信息数据库。我们还将总结本卷中包含的论文，并讨论它们对文学的贡献。