The turning points of the business cycle are notoriously difficult to anticipate. One might consult Mark Thornton’s skyscraper index:
https://mises.org/library/skyscrapers-and-business-cycles
http://shanghaiist.com/2013/08/11/skyscraper_index_andrew_lawrence_predicts_economic_downturn_in_china_following_super-tall_skyscraper_craze.php
http://mises.org/blog/mark-thornton-skyscrapers-le-monde
