THE world is in the middle of a skyscraper boom. Last year nearly 100 buildings over 200 metres tall were built—more than ever before. This year China’s business capital will welcome the Shanghai Tower, which will be the world’s second-tallest building. Saudi Arabia is building Kingdom Tower, which will be the world’s tallest (and twice the height of One World Trade Centre in New York, the tallest building in the Americas). Does this frenzy of building augur badly for the world economy? Various academics and pundits, many of them cited by The Economist, have long argued as much, but new research casts doubt on it.
