The French economy slowed in the first three months of the year, but Spain continued to enjoy a robust expansion, raising questions over the long-term strength of the eurozone’s recovery. The European Central Bank has acknowledged that growth eased in early 2018, but said the significance of that development for the future of its stimulus programs will depend on whether it proves temporary, or was caused by more long-lasting headwinds. France’s Insee statistics agency Friday said gross domestic product—the broadest measure of the goods and services produced in an economy—increased at less than half the pace recorded for the final three months of last year. But the Spanish economy didn’t appear to encounter similar obstacles, with growth continuing at the rapid rate recorded at the end of last year. And Austria’s economy also sustained a strong expansion, both developments that suggest the first quarter slowdown may have been less […]