Barclays Capital’s Skyscraper Index—an annual report that traces the curious correlation between contenders for the title of “world’s tallest building” and fluctuations in the Dow Jones—holds that when markets go down, skyscrapers go up. This index serves as a fitting point of departure for “Monument to Capital,” the two-part project that anchors “Art After Democratism,” Jonas Staal’s first solo exhibition in Dubai, a city whose most improbable architecture—including the current recordholder for the highest building, the Burj Khalifa—appeared in a moment of crisis within the