This Insurance Glossary of Terms is produced and maintained by the National Alliance Research Academy. 
If you have a comment, suggestion or question please contact us at


In probability theory and statistics, a statistic that measures the degree of peakedness in a distribution; also known as a measure of the volatility of volatility, a description of the distribution of data around the mean.

Do you need an answer immediately?

Check out our FAQ page!

Welcome To the Alliance!

The National Alliance for Insurance Education & Research is now the Risk & Insurance Education Alliance, or simply “The Alliance”.  For more details, please read our Press Release.