The OeNB Weekly GDP Indicator — Austria's Real-Time Economic Tracker Built During COVID-19

Official Austrian GDP figures are published quarterly with a substantial lag, leaving policymakers without a real-time read on the economy during fast-moving shocks such as the COVID-19 pandemic.

To close that gap, Oesterreichische Nationalbank (OeNB) economists Gerhard Fenz and Helmut Stix set out to build a weekly indicator that could track aggregate economic activity in near real time during a crisis.

The OeNB Weekly GDP Indicator (GDP-I), published from May 2020, takes a demand-side, data-driven approach rather than a conventional time-series model, drawing on weekly high-frequency data including payment-card spending and the shift between cash and non-cash consumer transactions — a behavioural signal that became especially informative once lockdowns changed how Austrians paid for goods and services. Results were formally documented in the OeNB's 'Monetary Policy & the Economy' journal, Q4/20-Q1/21 issue.

The authors report that the weekly indicator produced "rather accurate results for aggregate economic activity" across the first two quarters after Austria's outbreak, and it captured a roughly 26% year-on-year contraction in activity within two weeks of the country's full lockdown in March 2020 — far faster than the multi-month wait for official statistics.

Fenz and Stix are explicit about the tool's limits: they describe the GDP-I as "an instrument to be used in times of crisis and not for observing economic developments in 'normal' times", and the paper does not claim its accuracy holds outside acute shocks. That self-declared boundary, published alongside the results, is itself a marker of methodological transparency rather than a weakness to hide.