Bry and Boschan routine
The OECD has composite leading indicators and turning points that are recession indicators with peak through the trough turning points chronologies determined by the rules in a computer routine (Bry and Boschan)
The U.S. National Bureau of Economic Research (NBER) uses a computer routine (Bry and Boschan) and includes a Phase-Average Trend (PAT) detrending procedure. The turning point detection algorithm is decoupled from the de-trending procedure.
- "OECD Composite Leading Indicators: Reference Turning Points and Component Series - OECD". www.oecd.org.
- "Dating the Italian Business Cycle | A Comparison of Procedures | Giancarlo Bruno† Edoardo Otranto | 18th December 2003 Methods page 3" (PDF).
- "OECD based Recession Indicators for Major Seven Countries from the Peak through the Trough". FRED, Federal Reserve Bank of St. Louis. April 1, 1957.
- "OECD based Recession Indicators for the United States from the Peak through the Period preceding the Trough". FRED, Federal Reserve Bank of St. Louis. February 1, 1947.