Starting with the July, 2021 report: An Update to the Budget and Economic Outlook: 2021 to 2031 (https://www.cbo.gov/publication/57218), this series was renamed from "Natural Rate of Unemployment (Long-Term)" to "Noncyclical Rate of Unemployment". The natural rate of unemployment (NAIRU) is the rate of unemployment arising from all sources except fluctuations in aggregate demand. Estimates of potential GDP are based on the long-term natural rate. (CBO did not make explicit adjustments to the short-term natural rate for structural factors before the recent downturn.) The short-term natural rate incorporates structural factors that are temporarily boosting the natural rate beginning in 2008. The short-term natural rate is used to gauge the amount of current and projected slack in labor markets, which is a key input into CBO's projections of inflation.

This series last appeared in the February, 2021 report: NROU (https://fred.stlouisfed.org/series/NROU)), formerly called "Natural Rate of Unemployment (Long-Term)." The natural rate of unemployment (NAIRU) is the rate of unemployment arising from all sources except fluctuations in aggregate demand. Estimates of potential GDP are based on the long-term natural rate. (CBO did not make explicit adjustments to the short-term natural rate for structural factors before the recent downturn.) The short-term natural rate incorporates structural factors that are temporarily boosting the natural rate beginning in 2008. The short-term natural rate is used to gauge the amount of current and projected slack in labor markets, which is a key input into CBO's projections of inflation.

OECD Descriptor ID: CPALTT01 OECD unit ID: PC OECD country ID: SVN All OECD data should be cited as follows: OECD, "Main Economic Indicators - complete database", Main Economic Indicators (database), https://dx.doi.org/10.1787/data-00052-en (Accessed on date) Copyright, 2016, OECD. Reprinted with permission

OECD Descriptor ID: CPALTT01 OECD unit ID: PC OECD country ID: NOR All OECD data should be cited as follows: OECD, "Main Economic Indicators - complete database", Main Economic Indicators (database), https://dx.doi.org/10.1787/data-00052-en (Accessed on date) Copyright, 2016, OECD. Reprinted with permission

OECD Descriptor ID: CPALTT01 OECD unit ID: PC OECD country ID: MEX All OECD data should be cited as follows: OECD, "Main Economic Indicators - complete database", Main Economic Indicators (database), https://dx.doi.org/10.1787/data-00052-en (Accessed on date) Copyright, 2016, OECD. Reprinted with permission

OECD Descriptor ID: CPALTT01 OECD unit ID: PC OECD country ID: USA All OECD data should be cited as follows: OECD, "Main Economic Indicators - complete database", Main Economic Indicators (database), https://dx.doi.org/10.1787/data-00052-en (Accessed on date) Copyright, 2016, OECD. Reprinted with permission

OECD Descriptor ID: CPALTT01 OECD unit ID: PC OECD country ID: HUN All OECD data should be cited as follows: OECD, "Main Economic Indicators - complete database", Main Economic Indicators (database), https://dx.doi.org/10.1787/data-00052-en (Accessed on date) Copyright, 2016, OECD. Reprinted with permission

OECD Descriptor ID: CPALTT01 OECD unit ID: PC OECD country ID: IDN All OECD data should be cited as follows: OECD, "Main Economic Indicators - complete database", Main Economic Indicators (database), https://dx.doi.org/10.1787/data-00052-en (Accessed on date) Copyright, 2016, OECD. Reprinted with permission

OECD Descriptor ID: CPALTT01 OECD unit ID: PC OECD country ID: IRL All OECD data should be cited as follows: OECD, "Main Economic Indicators - complete database", Main Economic Indicators (database), https://dx.doi.org/10.1787/data-00052-en (Accessed on date) Copyright, 2016, OECD. Reprinted with permission

OECD Descriptor ID: CPALTT01 OECD unit ID: PC OECD country ID: SWE All OECD data should be cited as follows: OECD, "Main Economic Indicators - complete database", Main Economic Indicators (database), https://dx.doi.org/10.1787/data-00052-en (Accessed on date) Copyright, 2016, OECD. Reprinted with permission

OECD Descriptor ID: CPALTT01 OECD unit ID: PC OECD country ID: LTU All OECD data should be cited as follows: OECD, "Main Economic Indicators - complete database", Main Economic Indicators (database), https://dx.doi.org/10.1787/data-00052-en (Accessed on date) Copyright, 2016, OECD. Reprinted with permission

OECD Descriptor ID: CPALTT01 OECD unit ID: PC OECD country ID: BRA All OECD data should be cited as follows: OECD, "Main Economic Indicators - complete database", Main Economic Indicators (database), https://dx.doi.org/10.1787/data-00052-en (Accessed on date) Copyright, 2016, OECD. Reprinted with permission

OECD Descriptor ID: CPALTT01 OECD unit ID: PC OECD country ID: CHN All OECD data should be cited as follows: OECD, "Main Economic Indicators - complete database", Main Economic Indicators (database), https://dx.doi.org/10.1787/data-00052-en (Accessed on date) Copyright, 2016, OECD. Reprinted with permission

OECD Descriptor ID: CPALTT01 OECD unit ID: PC OECD country ID: DEU All OECD data should be cited as follows: OECD, "Main Economic Indicators - complete database", Main Economic Indicators (database), https://dx.doi.org/10.1787/data-00052-en (Accessed on date) Copyright, 2016, OECD. Reprinted with permission

OECD Descriptor ID: CPALTT01 OECD unit ID: PC OECD country ID: ESP All OECD data should be cited as follows: OECD, "Main Economic Indicators - complete database", Main Economic Indicators (database), https://dx.doi.org/10.1787/data-00052-en (Accessed on date) Copyright, 2016, OECD. Reprinted with permission

OECD Descriptor ID: CPALTT01 OECD unit ID: PC OECD country ID: CZE All OECD data should be cited as follows: OECD, "Main Economic Indicators - complete database", Main Economic Indicators (database), https://dx.doi.org/10.1787/data-00052-en (Accessed on date) Copyright, 2016, OECD. Reprinted with permission

OECD Data Filters: REF_AREA: CHE MEASURE: IN UNIT_MEASURE: PB ACTIVITY: _Z ADJUSTMENT: Y TRANSFORMATION: _Z TIME_HORIZ: FT METHODOLOGY: N FREQ: Q All OECD data should be cited as follows: OECD (year), (dataset name), (data source) DOI or https://data-explorer.oecd.org/ (https://data-explorer.oecd.org/). (accessed on (date)).

OECD Data Filters: REF_AREA: ZAF MEASURE: IN UNIT_MEASURE: PB ACTIVITY: _Z ADJUSTMENT: Y TRANSFORMATION: _Z TIME_HORIZ: FT METHODOLOGY: N FREQ: Q All OECD data should be cited as follows: OECD (year), (dataset name), (data source) DOI or https://data-explorer.oecd.org/ (https://data-explorer.oecd.org/). (accessed on (date)).

OECD Descriptor ID: CPALTT01 OECD unit ID: PC OECD country ID: EST All OECD data should be cited as follows: OECD, "Main Economic Indicators - complete database", Main Economic Indicators (database), https://dx.doi.org/10.1787/data-00052-en (Accessed on date) Copyright, 2016, OECD. Reprinted with permission

OECD Descriptor ID: CPALTT01 OECD unit ID: PC OECD country ID: CHE All OECD data should be cited as follows: OECD, "Main Economic Indicators - complete database", Main Economic Indicators (database), https://dx.doi.org/10.1787/data-00052-en (Accessed on date) Copyright, 2016, OECD. Reprinted with permission

OECD Descriptor ID: CPALTT01 OECD unit ID: PC OECD country ID: TUR All OECD data should be cited as follows: OECD, "Main Economic Indicators - complete database", Main Economic Indicators (database), https://dx.doi.org/10.1787/data-00052-en (Accessed on date) Copyright, 2016, OECD. Reprinted with permission

OECD Descriptor ID: CPALTT01 OECD unit ID: PC OECD country ID: GRC All OECD data should be cited as follows: OECD, "Main Economic Indicators - complete database", Main Economic Indicators (database), https://dx.doi.org/10.1787/data-00052-en (Accessed on date) Copyright, 2016, OECD. Reprinted with permission

OECD Descriptor ID: CPALTT01 OECD unit ID: PC OECD country ID: LUX All OECD data should be cited as follows: OECD, "Main Economic Indicators - complete database", Main Economic Indicators (database), https://dx.doi.org/10.1787/data-00052-en (Accessed on date) Copyright, 2016, OECD. Reprinted with permission

On April 26, 2006, The Employment Cost Index converted to the 2002 North American Industry Classification System (NAICS) and the 2000 Standard Occupational Classification System (SOC). In addition, several computational changes were introduced, including rebasing all series to December 2005=100 from June 1989=100, the introduction of new employment weights and seasonal adjustment factors. For more detailed information on NAICS and SOC, including background and definitions, please see the Bureau of Labor Statistics (BLS) websites: https://www.bls.gov/bls/naics.htm (https://www.bls.gov/bls/naics.htm) and http://www.bls.gov/soc/home.htm (http://www.bls.gov/soc/home.htm).

On April 26, 2006, The Employment Cost Index will convert to the 2002 North American Industry Classification System (NAICS) and the 2000 Standard Occupational Classification System (SOC). In addition, several computational changes will be introduced, including rebasing all series to December 2005=100 from June 1989=100, the introduction of new employment weights and seasonal adjustment factors. For more detailed information on NAICS and SOC, including background and definitions, please see the Bureau of Labor Statistics (BLS) websites: https://www.bls.gov/bls/naics.htm and http://www.bls.gov/soc/home.htm.

On April 26, 2006, The Employment Cost Index will convert to the 2002 North American Industry Classification System (NAICS) and the 2000 Standard Occupational Classification System (SOC). In addition, several computational changes will be introduced, including rebasing all series to December 2005=100 from June 1989=100, the introduction of new employment weights and seasonal adjustment factors. For more detailed information on NAICS and SOC, including background and definitions, please see the Bureau of Labor Statistics (BLS) websites: https://www.bls.gov/bls/naics.htm and http://www.bls.gov/soc/home.htm.

OECD Data Filters: REF_AREA: ZAF MEASURE: CPI UNIT_MEASURE: PA METHODOLOGY: N EXPENDITURE: CP10 ADJUSTMENT: N TRANSFORMATION: GY FREQ: Q All OECD data should be cited as follows: OECD (year), (dataset name), (data source) DOI or https://data-explorer.oecd.org/ (https://data-explorer.oecd.org/). (accessed on (date)).

OECD Data Filters: REF_AREA: ZAF MEASURE: CPI UNIT_MEASURE: PA METHODOLOGY: N EXPENDITURE: CP0722 ADJUSTMENT: N TRANSFORMATION: GY FREQ: Q All OECD data should be cited as follows: OECD (year), (dataset name), (data source) DOI or https://data-explorer.oecd.org/ (https://data-explorer.oecd.org/). (accessed on (date)).

OECD Data Filters: REF_AREA: ZAF MEASURE: CPI UNIT_MEASURE: IX METHODOLOGY: N EXPENDITURE: CP044 ADJUSTMENT: N TRANSFORMATION: _Z FREQ: Q All OECD data should be cited as follows: OECD (year), (dataset name), (data source) DOI or https://data-explorer.oecd.org/ (https://data-explorer.oecd.org/). (accessed on (date)).

OECD Data Filters: REF_AREA: ZAF MEASURE: CPI UNIT_MEASURE: PA METHODOLOGY: N EXPENDITURE: CP042 ADJUSTMENT: N TRANSFORMATION: GY FREQ: Q All OECD data should be cited as follows: OECD (year), (dataset name), (data source) DOI or https://data-explorer.oecd.org/ (https://data-explorer.oecd.org/). (accessed on (date)).

OECD Data Filters: REF_AREA: ZAF MEASURE: CPI UNIT_MEASURE: PA METHODOLOGY: N EXPENDITURE: CP02 ADJUSTMENT: N TRANSFORMATION: GY FREQ: Q All OECD data should be cited as follows: OECD (year), (dataset name), (data source) DOI or https://data-explorer.oecd.org/ (https://data-explorer.oecd.org/). (accessed on (date)).

OECD Data Filters: REF_AREA: USA MEASURE: CPI UNIT_MEASURE: PA METHODOLOGY: N EXPENDITURE: SERV ADJUSTMENT: N TRANSFORMATION: GY FREQ: Q All OECD data should be cited as follows: OECD (year), (dataset name), (data source) DOI or https://data-explorer.oecd.org/ (https://data-explorer.oecd.org/). (accessed on (date)).

OECD Data Filters: REF_AREA: USA MEASURE: CPI UNIT_MEASURE: IX METHODOLOGY: N EXPENDITURE: CP12 ADJUSTMENT: N TRANSFORMATION: _Z FREQ: Q All OECD data should be cited as follows: OECD (year), (dataset name), (data source) DOI or https://data-explorer.oecd.org/ (https://data-explorer.oecd.org/). (accessed on (date)).

OECD Data Filters: REF_AREA: USA MEASURE: CPI UNIT_MEASURE: IX METHODOLOGY: N EXPENDITURE: CP10 ADJUSTMENT: N TRANSFORMATION: _Z FREQ: Q All OECD data should be cited as follows: OECD (year), (dataset name), (data source) DOI or https://data-explorer.oecd.org/ (https://data-explorer.oecd.org/). (accessed on (date)).

OECD Data Filters: REF_AREA: USA MEASURE: CPI UNIT_MEASURE: IX METHODOLOGY: N EXPENDITURE: CP06 ADJUSTMENT: N TRANSFORMATION: _Z FREQ: Q All OECD data should be cited as follows: OECD (year), (dataset name), (data source) DOI or https://data-explorer.oecd.org/ (https://data-explorer.oecd.org/). (accessed on (date)).

OECD Data Filters: REF_AREA: USA MEASURE: CPI UNIT_MEASURE: IX METHODOLOGY: N EXPENDITURE: CP045 ADJUSTMENT: N TRANSFORMATION: _Z FREQ: Q All OECD data should be cited as follows: OECD (year), (dataset name), (data source) DOI or https://data-explorer.oecd.org/ (https://data-explorer.oecd.org/). (accessed on (date)).

OECD Data Filters: REF_AREA: USA MEASURE: CPI UNIT_MEASURE: IX METHODOLOGY: N EXPENDITURE: CP042 ADJUSTMENT: N TRANSFORMATION: _Z FREQ: Q All OECD data should be cited as follows: OECD (year), (dataset name), (data source) DOI or https://data-explorer.oecd.org/ (https://data-explorer.oecd.org/). (accessed on (date)).

OECD Data Filters: REF_AREA: USA MEASURE: CPI UNIT_MEASURE: IX METHODOLOGY: N EXPENDITURE: CP04 ADJUSTMENT: N TRANSFORMATION: _Z FREQ: Q All OECD data should be cited as follows: OECD (year), (dataset name), (data source) DOI or https://data-explorer.oecd.org/ (https://data-explorer.oecd.org/). (accessed on (date)).

OECD Data Filters: REF_AREA: USA MEASURE: CPI UNIT_MEASURE: PA METHODOLOGY: N EXPENDITURE: CP03 ADJUSTMENT: N TRANSFORMATION: GY FREQ: Q All OECD data should be cited as follows: OECD (year), (dataset name), (data source) DOI or https://data-explorer.oecd.org/ (https://data-explorer.oecd.org/). (accessed on (date)).

OECD Data Filters: REF_AREA: TUR MEASURE: CPI UNIT_MEASURE: IX METHODOLOGY: N EXPENDITURE: CP041T043X042 ADJUSTMENT: N TRANSFORMATION: _Z FREQ: Q All OECD data should be cited as follows: OECD (year), (dataset name), (data source) DOI or https://data-explorer.oecd.org/ (https://data-explorer.oecd.org/). (accessed on (date)).

OECD Data Filters: REF_AREA: TUR MEASURE: CPI UNIT_MEASURE: PA METHODOLOGY: N EXPENDITURE: CP07 ADJUSTMENT: N TRANSFORMATION: GY FREQ: Q All OECD data should be cited as follows: OECD (year), (dataset name), (data source) DOI or https://data-explorer.oecd.org/ (https://data-explorer.oecd.org/). (accessed on (date)).

OECD Data Filters: REF_AREA: SWE MEASURE: CPI UNIT_MEASURE: IX METHODOLOGY: N EXPENDITURE: CP045_0722 ADJUSTMENT: N TRANSFORMATION: _Z FREQ: Q All OECD data should be cited as follows: OECD (year), (dataset name), (data source) DOI or https://data-explorer.oecd.org/ (https://data-explorer.oecd.org/). (accessed on (date)).

OECD Data Filters: REF_AREA: SWE MEASURE: CPI UNIT_MEASURE: IX METHODOLOGY: N EXPENDITURE: CP09 ADJUSTMENT: N TRANSFORMATION: _Z FREQ: Q All OECD data should be cited as follows: OECD (year), (dataset name), (data source) DOI or https://data-explorer.oecd.org/ (https://data-explorer.oecd.org/). (accessed on (date)).

OECD Data Filters: REF_AREA: SWE MEASURE: CPI UNIT_MEASURE: IX METHODOLOGY: N EXPENDITURE: CP07 ADJUSTMENT: N TRANSFORMATION: _Z FREQ: Q All OECD data should be cited as follows: OECD (year), (dataset name), (data source) DOI or https://data-explorer.oecd.org/ (https://data-explorer.oecd.org/). (accessed on (date)).

OECD Data Filters: REF_AREA: SWE MEASURE: CPI UNIT_MEASURE: IX METHODOLOGY: N EXPENDITURE: CP03 ADJUSTMENT: N TRANSFORMATION: _Z FREQ: Q All OECD data should be cited as follows: OECD (year), (dataset name), (data source) DOI or https://data-explorer.oecd.org/ (https://data-explorer.oecd.org/). (accessed on (date)).

OECD Data Filters: REF_AREA: SVN MEASURE: CPI UNIT_MEASURE: IX METHODOLOGY: N EXPENDITURE: CP11 ADJUSTMENT: N TRANSFORMATION: _Z FREQ: Q All OECD data should be cited as follows: OECD (year), (dataset name), (data source) DOI or https://data-explorer.oecd.org/ (https://data-explorer.oecd.org/). (accessed on (date)).

OECD Data Filters: REF_AREA: SVK MEASURE: CPI UNIT_MEASURE: IX METHODOLOGY: N EXPENDITURE: _T ADJUSTMENT: N TRANSFORMATION: _Z FREQ: Q All OECD data should be cited as follows: OECD (year), (dataset name), (data source) DOI or https://data-explorer.oecd.org/ (https://data-explorer.oecd.org/). (accessed on (date)).

OECD Data Filters: REF_AREA: SVK MEASURE: CPI UNIT_MEASURE: PA METHODOLOGY: N EXPENDITURE: CP11 ADJUSTMENT: N TRANSFORMATION: GY FREQ: Q All OECD data should be cited as follows: OECD (year), (dataset name), (data source) DOI or https://data-explorer.oecd.org/ (https://data-explorer.oecd.org/). (accessed on (date)).

OECD Data Filters: REF_AREA: SVK MEASURE: CPI UNIT_MEASURE: IX METHODOLOGY: N EXPENDITURE: CP05 ADJUSTMENT: N TRANSFORMATION: _Z FREQ: Q All OECD data should be cited as follows: OECD (year), (dataset name), (data source) DOI or https://data-explorer.oecd.org/ (https://data-explorer.oecd.org/). (accessed on (date)).