OECD Composite Leading Indicators: Reference Turning Points and Component Series

The following pages give: (1) the chronology of turning points in the reference series for regional/zone area aggregates and individual countries and (2) the list of components series for each individual country CLI.


The OECD CLI system is based on the "growth cycle" approach, where business cycles and turning points are measured and identified in the deviation-from-trend series. The main reference series used in the OECD CLI system for the majority of countries is industrial production (IIP) covering all industry sectors excluding construction. This series is used because of its cyclical sensitivity and monthly availability, while the broad based Gross Domestic Product (GDP) is used to supplement the IIP series for identification of the final reference turning points in the growth cycle.


Zones aggregates of the CLIs and the reference series  are calculated as weighted averages of the corresponding zone member series (i.e CLIs and IIPs).


Up to December 2008 the turning points chronologies shown for regional/zone area aggregates or individual countries are determined by the rules established by the National Bureau of Economic Research (NBER) in the United States, which have been formalized and incorporated in a computer routine (Bry and Boschan) and included in the Phase-Average Trend (PAT) de-trending procedure. Starting from December 2008 the turing point detection algorithm is decoupled from the de-trending procedure, and is a simplified version of the original Bry and Boschan routine. (The routine parses local minima and maxima in the cycle series and applies censor rules to guarantee alternating peaks and troughs, as well as phase and cycle length constraints.) 


The components of the CLI are time series which exhibit leading relationship with the reference series (IIP) at turning points. Country CLIs are compiled by combining de-trended smoothed and normalized components. The component series for each country are selected based on various criteria such as economic significance; cyclical behaviour; data quality; timeliness and availability.

 

OECD Total Area
OECD + Non-member economies
Major Seven Countries
Euro Area
Four Big European Countries
NAFTA Area
Major 5 Asia
OECD Eastern Europe (Visegrad 4)

Australia
Austria
Belgium
Canada
Czech Republic
Denmark
Finland
France
Germany
Greece
Hungary
Ireland
Italy
Japan
Korea 

Luxembourg
Mexico
Netherlands
New Zealand
Norway
Poland
Portugal
Slovak Republic
Spain
Sweden
Switzerland
Turkey
United Kingdom
United States

Non-member economies
Brazil
China
India
Indonesia
Russian Federation
South Africa

   

The OECD-Total covers the following 29 countries: Australia, Austria, Belgium, Canada, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Japan, Korea, Luxembourg, Mexico, Netherlands, New Zealand, Norway, Poland, Portugal, Slovak Republic, Spain, Sweden, Switzerland, Turkey, United Kingdom, and United States.


The OECD + Non-member economies covers the following 35 countries: Australia, Austria, Belgium, Brazil, Canada, China, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, India, Indonesia, Ireland, Italy, Japan, Korea, Luxembourg, Mexico, Netherlands, New Zealand, Norway, Poland, Portugal, Russian Federation, Slovak Republic, Spain, South Africa, Sweden, Switzerland, Turkey, United Kingdom and United States .


The Major Seven countries are: Canada, France, Germany, Italy, Japan, United Kingdom, and United States.

The Euro area covers the Europe 15 area excluding Denmark, Sweden, and United Kingdom.


The Four Big European Countries are: France, Germany, Italy, and United Kingdom.


The NAFTA area covers the following 3 countries: Canada, Mexico, and United States.


The Major 5 Asia countries are: China, India, Indonesia, Japan and Korea.


The OECD Eastern Europe (Visegrad 4) area covers the following 4 countries: Czech Republic, Hungary, Poland, and Slovak Republic.

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The aim of the "OECD - CIRET Journal of Business Cycle Measurement and Analysis" is the exchange of knowledge and information on the theory and operation of business and economic cycle research, including both measurement and analytical aspects.

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