This article originally published without an online appendix, which it should have contained. This appendix has now been uploaded to the original article.

中文翻译：

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勘误到：在蒸汽时代没有煤，在电力时代没有大坝：第二次世界大战前葡萄牙未能工业化的解释

本文最初发布时没有应包含的在线附录。该附录现已上传到原始文章。