How can airlines curb bad behavior? Start by providing better service.

WASHINGTON, D.C. — Grocery prices are elevated, gas prices are high , job markets are cooling, and U.S. President Donald Trump is sticking to his tariff plans while the world eyes a shaky ceasefire with Iran. The two-week truce this week between the U.S. and Iran has raised hopes and markets while lowering oil prices somewhat — Brent is now in the mid-US$90s per barrel, down from a conflict peak of $120 — but there are already signs that peace may not last: There are disagreements over Lebanon’s inclusion in the ceasefire, Israel is vowing to continue hitting Hezbollah, and Tehran...