There is a rich array of timely high-frequency electronic data that potentially is informative about current economic conditions. In particular, data on electronic transactions and internet searches can be useful complements to more standard indicators of economic activity. While a limited...

Gauging economic conditions in real time is challenging, in part because economic data are difficult to measure and subject to subsequent revision as more information becomes available. This article investigates the pattern and size of revisions to real gross domestic product (GDP) over the past...