Tempo effect

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The tempo effect is a term coined by John Bongaarts and Griffith Feeney for statistics in demography .


It leads to bias in age-specific statistics if the average age changes. If the average age increases, the tempo effect leads to a reduction, and if the average age decreases, it leads to an increase in the period rates. The effect is typical for demographic statistics, which is why tempo-standardized statistics are also calculated. Austria is the first country in the world to introduce a system of regular monthly monitoring of the birth development, which shows the development adjusted for the “tempo effect”.


  • John Bongaarts, Griffith Feeney: On the Quantum and Tempo of Fertility. (pdf) In: Population and Development Review. www.popcouncil.org, June 1998, pp. 271-291 , archived from the original on April 3, 2016 ; accessed on April 3, 2016 .

Web links

Individual evidence

  1. Speed-standardized life expectancy in Germany ( Memento from April 14, 2009 in the Internet Archive )
  2. Birth barometer for Austria (since 2005) and for Vienna (since May 2010) ( Memento of the original dated February 5, 2013 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.oeaw.ac.at