New York. A wave of relief has swept through the global economy following a two-week ceasefire agreement between Iran and the United States. Crude oil prices plummeted on Wednesday, and stock markets worldwide surged, fueled by hopes that the Strait of Hormuz will reopen, easing oil and gas supplies.Tensions, which escalated after US and Israeli strikes on Iran in late February, had effectively paralyzed this strategic waterway—which carries 20 percent of the world's fuel—leading to weeks of market volatility and uncertainty.President Donald Trump announced the ceasefire just two hours before his deadline to destroy Iranian civilian infrastructure was set to...