Observations

Q2 2026: 0.21325

Updated: Jul 31, 2026 2:45 PM CDT

Units:

Index,

Not Seasonally Adjusted

Frequency:

Quarterly

Notes

Title	Release Dates

Smoothed World Uncertainty Index for Islamic Republic of Iran	2019-10-22	2026-07-31

Source

Baker, Scott R.	2019-10-22	2020-04-29
Bloom, Nick	2019-10-22	2020-04-29
Davis, Steven J.	2019-10-22	2020-04-29
Ahir, Hites	2020-04-30	2026-07-31
Bloom, Nick	2020-04-30	2026-07-31
Furceri, Davide	2020-04-30	2026-07-31

Release

Economic Policy Uncertainty	2019-10-22	2020-04-29
World Uncertainty Index	2020-04-30	2026-07-31

Units

Index	2019-10-22	2026-07-31

Frequency

Quarterly	2019-10-22	2026-07-31

Seasonal Adjustment

Not Seasonally Adjusted	2019-10-22	2026-07-31

Notes

The World Uncertainty Index determines uncertainty using the frequency of the selfsame word in the quarterly Economist Intelligence Unit country reports. This smoothed version of the index is preferred over the index for country-level data. The 3-quarter weighted moving average is computed as follows: 1996Q4 = (1996Q40.6) + (1996Q30.3) + (1996Q2*0.1)/3. Please see Hites Ahir, Nicholas Bloom and Davide Furceri (2018), 'The World Uncertainty Index' (https://www.policyuncertainty.com/media/WUI_mimeo_10_29.pdf) for additional explanation.	2019-10-22	2026-07-31

Release Tables

World Uncertainty Index