Industrial production measures the physical output of factories, mines and utilities. The measure provided by Eurostat excludes the volatile construction subsector for which data are released a few days later.

Industrial production measures changes in the volume of output for the EMU's member states. The industrial production index provides a measure of the volume trend in value added at factor cost over a given reference period, excluding VAT and other similar deductible taxes. The preferred number is industrial production excluding construction. As with other EMU statistics, the data are provided by the national statistics offices to Eurostat (the European Union statistical agency) where it is combined to produce an overall output measure.

Investors want to keep their finger on the pulse of the economy because it usually dictates how various types of investments will perform. The stock market likes to see healthy economic growth because that translates to higher corporate profits. The bond market prefers more subdued growth that will not lead to inflationary pressures. By tracking economic data such as industrial production, investors will know what the economic backdrop is for these markets and their portfolios.