The construction sector has become central to theeconomic fortunes of many important economies: In theUS the soft patch in home building was a key feature of apoor Q1, while in Australia a marked discrepancy hasarisen between residential vigour and weakness in othercategories of construction. In the UK, worries simmerabout a London house price bubble, while in China, hintsof an overall economic slowdown have been magnified bya sharp drop in housing starts. Nonetheless, globalgrowth is expected at 3¾% this year.