Reinhart-Rogoff Global Financial Crisis Index (BCDI), 1800–2010莱因哈特-罗格夫全球金融危机指数 (BCDI)，1800–2010

The BCDI index is Reinhart and Rogoff's composite measure of global financial turbulence: for each year it aggregates the incidence of banking crises, currency crashes, sovereign default (domestic and external) and inflation crises across the countries in their historical sample, weighted by share of world income. The series runs annually from 1800 to 2010. BCDI+ additionally counts stock-market crashes and is available from the later part of the sample onward.

Higher values mean a larger share of the world economy was in crisis that year; the series peaks around the 1930s and again in 2008. It is the standard long-run reference for arguing that financial crises recur with similar dynamics across very different monetary and regulatory regimes.

Note on structure: the source file contains only this single world-level series with no country breakdown, so this dataset is published as a time series rather than as the country-year panel suggested in the original task sheet.

BCDI 指数是莱因哈特与罗格夫构建的全球金融动荡综合度量：对每一年，它把样本国家中银行危机、货币崩溃、主权违约（对内与对外）和通胀危机的发生情况，按各国占世界收入的份额加权汇总。序列为 1800–2010 年的年度数据。BCDI+ 在此基础上再计入股市崩盘，仅覆盖样本后段。

取值越高，表示当年处于危机中的世界经济份额越大；序列在 1930 年代和 2008 年出现峰值。它是论证「金融危机会在差异极大的货币与监管体制下反复以相似方式重演」这一命题的标准长时段依据。

结构说明：原始文件只有这一条世界层面的汇总序列，没有国家维度，因此本数据集按时间序列（series）发布，而非原任务清单建议的国家-年面板。