Observations

Jun 2025: 0.88396

Updated: Aug 23, 2025 2:00 PM CDT

Units:

Index,

Not Seasonally Adjusted

Frequency:

Monthly

Notes

Title	Release Dates

LMN 12 Month Ahead Real Uncertainty	2023-02-23	2025-08-23

Source

Ludvigson, Sydney C.	2023-02-23	2025-08-23
Ma, Sai	2023-02-23	2025-08-23
Ng, Serena	2023-02-23	2025-08-23

Release

Financial and Real Uncertainty Indexes	2023-02-23	2025-08-23

Units

Index	2023-02-23	2025-08-23

Frequency

Monthly	2023-02-23	2025-08-23

Seasonal Adjustment

Not Seasonally Adjusted	2023-02-23	2025-08-23

Notes

Broad-based measure of 12-month ahead real uncertainty drawn from large number of real time series. For additional details see Ludvigson, Ma, Ng (2021) Uncertainty and Business Cycles: Exogenous Impulse or Endogenous Response? (https://static1.squarespace.com/static/54397369e4b0446f66937a73/t/61533f3d7c6661047246670a/1632845631779/Ludvigson_Ma_Ng_AEJM.pdf).	2023-02-23	2025-08-23

LMN 12 Month Ahead Real Uncertainty (LMNUR12M)