Early history of cannabis use in Amsterdam

There are two files: 1. STATA do-file and 2. STATA data-file Using the two generate Table 1 in the paper entitled "Early history of cannabis use in Amsterdam" to be published in Applied Economics Letters. The publication is Open Access: https://doi.org/10.1080/13504851.2025.2570420. Abstract of the paper: Around 50 years ago, the Netherlands decriminalized cannabis for recreational use. This paper uses retrospective data on the ages at which individuals began and ceased cannabis use to reconstruct its prevalence in Amsterdam during the period surrounding the policy change. This approach enables a detailed analysis of the policy’s effects. The main conclusion is that the introduction of this policy did not lead to an increase in the prevalence of cannabis use.本数据集包含两份文件：1. STATA do文件（STATA do-file）与2. STATA 数据文件（STATA data-file）。借助上述两份文件，可复现即将发表于《应用经济学通讯（Applied Economics Letters）》、题为《阿姆斯特丹大麻使用早期史（Early history of cannabis use in Amsterdam）》的论文中的表1。该论文为开放获取论文，其DOI链接为：https://doi.org/10.1080/13504851.2025.2570420。论文摘要：约50年前，荷兰将娱乐用途大麻非刑事化。本文采用个体吸食大麻的起始年龄与终止年龄的回顾性数据，重构政策变更前后阿姆斯特丹地区的大麻使用流行率，该方法可对该政策的影响展开详尽分析。本文核心结论为：该项政策的推行并未导致大麻使用流行率上升。