Hotel companies are saying electricians, carpenters and other types of employees are in short supply even as occupancy and revenue is up. Price increases for materials are also a contributing factor to project delays. “Some companies have turned to technology like drones, robots and 3D printers to deal with worker shortages, according to the survey. Other firms are boosting pay and adding incentives, and nearly half have added or expanded in-house training programs,” according to the article.