We mostly use the fill handle or auto-fill options for date columns, and sure, they work. But once you need hundreds of rows, weekly intervals, or dates that have to shift when your data changes, ...

And when it doesn’t by Andrei Hagiu and Julian Wright Many executives and investors assume that it’s possible to use customer-data capabilities to gain an unbeatable competitive edge. The more ...

The economist Adam Posen on the effect of the war in Iran on the world’s economy and the darkening economic outlook for the United States. Plus: A shifting partisan balance of power and Ask Not: The ...