Data & methods
The August 2026 industrial production tables contain two different answers for Germany. Both are correct because their comparison periods differ.
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Research resources
Official data sources and guidance for research.
Collecting data
Primary sources
Statistical data sources
Consult economic and financial series directly from the institutions that publish them.
Eurostat · European economic statistics
Quarterly and monthly series on output, prices and activity, with definitions and revision information.
ECB · Data Portal
Time series on policy rates, bank lending and financial conditions, with frequency and units for each series.
Destatis · GENESIS-Online
German economic and sector statistics. Select a period, unit and economic activity before comparing series.
Source check
How to read a primary source
Before comparing figures, check these four details in the original document.
- Reporting period and cut-off date
- Metric definition and unit
- Comparison base and adjustments
- Notes and uncertainties
Research workshop
From a data series to an analysis
Data & methods
A backtest of an economic signal has two dates: the quarter being measured and the day the estimate could first have influenced a decision. Confusing them lets a model see the future.
Data & methods
A change in the annual inflation rate can come from today’s prices, last year’s comparison or the spending weights. Each tells a different story about household demand.
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